I'm confused on this question. Could anyone tell me how to go about doing it ASAP. I will give brainliest.

One fuel used to power the main engines of rockets is liquid hydrogen. It reacts in the presence of oxygen to produce water in this reaction: H2 + O2 --> H2O
If an rockets main engine can hold 1.44 x 106 grams of hydrogen, how much oxygen would be needed to fully react all of it?
How much water would be produced if all of the hydrogen above reacted?

Answers

Answer 1

Answer:

3.57 × 10⁵ mol O₂

7.13 × 10⁵ mol H₂O

Explanation:

Step 1: Write the balanced equation

2 H₂ + O₂ ⇒ 2 H₂O

Step 2: Calculate the moles corresponding to 1.44 × 10⁶ g of hydrogen

The molar mass of hydrogen is 2.02 g/mol.

1.44 × 10⁶ g × (1 mol/2.02 g) = 7.13 × 10⁵ mol

Step 3: Calculate the moles of oxygen needed to react with 7.13 × 10⁵ moles of hydrogen

The molar ratio of H₂ to O₂ is 2:1. The reacting moles of oxygen are 1/2 × 7.13 × 10⁵ mol = 3.57 × 10⁵ mol.

Step 4: Calculate the moles of water produced from 7.13 × 10⁵ moles of hydrogen

The molar ratio of H₂ to H₂O is 2:2. The moles of water formed are 2/2 × 7.13 × 10⁵ mol = 7.13 × 10⁵ mol.


Related Questions

Consider the following equilibrium.
NH3(aq) + H2O(l) equilibrium reaction arrow NH4+(aq) + OH −(aq)
What will happen to the equilibrium constant if the concentration of OH − increases through the addition of a small amount of NaOH(aq)?

Answers

Answer:

It will remain the same

Explanation:

The equilibrium constant of the reaction will remain the same if the concentration of the OH is increased.

Changes in concentration values of any of the reactant does not affect the value of the equilibrium constant.

The equilibrium constant is a constant at a given temperature. It is temperature dependent. Since we have no change in temperature, therefore, the equilibrium constant will not change.

The equilibrium constant if the concentration of OH − increases through the addition of a small amount of NaOH(aq) is :

- Remains same.

Equilibrium Reaction

The equilibrium constant of the response will stay the same in case the concentration of the OH is increased.

Changes in concentration values of any of the reactant does not influence the esteem of the equilibrium constant.

The equilibrium constant may be a consistent at a given temperature.

It is temperature dependent. Since we have no alter in temperature.

Learn more about "Equilibrium":

https://brainly.com/question/15244329?referrer=searchResults

The nurse discovers that one of her assigned clients is bleeding excessively from an abdominal incision. The nurse gives specific prescriptions to an unlicensed assistive personnel (UAP) to attend to the other clients and tells another nurse to call the primary health care provider immediately. In this situation, the nurse is implementing which leadership style?

Answers

A Good Samaritan law will protect the nurse.

Scientists discover remains of wooden structures near a Celtic runes site. What kind of testing will indicate when the stones were moved into place by the Celts?

Carbon dating

Radioactive dating

Answers

Answer:

Carbon

Explanation:

Bc i got this question on my test

Answer:

A. Carbon dating

Explanation:

I took the test proof

                                 

A very new item just arrived in the market. It is very good for construction, and other things. Now, this item has chemicals, and in every drop, there are 400 grams of NaCI. If there are 10 drops in this item, how many grams of NaCI are in one bottle?

Answers

Answer: 4,000 grams of NaCI

Explanation:

We know that there are 400g of NaCI in one drop.

This bottle has 10 drops of this item.

So, we have to multiply the amount of NaCI in a drop by the amount of drops.

400 x 10 = 4,000.

The answer to the question is 4,000. Hope this helps!

How do you determine whether an acid should be broken up into ions in the
complete ionic equation?

Answers

Answer:

When chemicals in solution react, the proper way of writing the chemical formulas of the dissolved ionic compounds is in terms of the dissociated ions, not the complete ionic formula. A complete ionic equation is a chemical equation in which the dissolved ionic compounds are written as separated ions.

. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 0.082M solution of triethylamine?

Answers

Answer:

pH = 4.40

Explanation:

Is steel wool and vinegar an exothermic reaction? Explain.

Answers

Answer:

Vinegar contains acetic acid which removes this coating. When the protective coating is removed, oxygen in the atmosphere can reach the iron in the steel wool and a chemical reaction called oxidation occurs. ... This reaction is also an exothermic reaction. It creates heat energy

Explanation:

hope this helps u

Vinegar incorporates acetic acid which gets rid of this coating. When the defensive coating is removed, oxygen in the environment can reach the iron in the metal wool and a chemical reaction called oxidation occurs. This reaction is additionally an exothermic reaction. It creates warmth energy.  

Hope it helped! Have a nice day! <3

As you move from N to Bi, the metallic properties of the element
A. increases.
C. remains the same.
B. decreases.
D. does not follow a trend.

Answers

Answer:

b. decreases

Explanation:

i just took a test on it

As you move from N to Bi, the metallic properties of the element decrease. The correct option is B.

What are nitrogen and bismuth?

Nitrogen is a chemical element, whose chemical element is N. Nitrogen is a gas and its atomic number is 7. It is a non-metal and is present in group 15 of the periodic table.

Bismuth is a chemical element, whose chemical element is Bi. It is a post-transition metal, and it is also present in group 15 of the periodic table near arsenic and antimony. Its atomic number is 83.

Now, nitrogen and bismuth are present in the same line and group. Nitrogen is the first element of the group and going down, there is bismuth present in the group last. So the metallic property decreases from going down the group.

Thus, the correct option is B. decreases.

To learn more about nitrogen and bismuth, refer to the link:

https://brainly.com/question/24309770

#SPJ2

Calculate the percent composition by mass of each element in Al(OH)3.Al(OH)3. Use at least three significant figures.

Answers

Answer:

Explanation:

Al(OH)₃

Total molecular weight = 27 + 3 x ( 16+1)

= 78

Al = 27

% of Al = 27 x 100 / 78 = 34.61%

O = 48

% of O = 48 x 100 / 78 = 61.55 %

H = 3

% of H = 3 x 100 / 78

= 3.84%

Al = 34.61%.

O = 61.55%.

H = 3.84%.

how many moles of nitroge are there in 50.0 g of nitrogen?

Answers

1.785714286 moles

The number of moles (n) for nitrogen is: [ n=50.0÷28.0 ] = 1.785714286 moles.

.
As you move from left to right, the atomic number of each element increases
by

Answers

Answer:

Ionization Energy increases from left to right on the periodic table. Atomic radius decreases moving left to right on the periodic table.

Atomic size gradually decreases from left to right across a period of elements. This is because, within a period or family of elements, all electrons are added to the same shell.

3.0 x 108 m/s is the

Answers

Answer:

Speed of light

Explanation:

The value 3.0 x 10⁸m/s is taken as the speed of light.

It is a constant.

It implies that light travels a distance of 3 x 10⁸ in just one second. This value is for the speed of light in a vacuum when there are not particles obstructing its movement. The speed of electromagnetic radiations in free space is also taken as the speed of light.

A gas expands from 285 mL to 789 mL at constant temperature. How much work is done by the gas (joules) if it expands against a constant pressure of 6.00 atm?

Answers

Answer:

-306j

Explanation:

For this question we define an equation:

W = -Pext(Vj-Vi)-----> eqn 1

P = 6atm

Vi = 285 ml

We convert it to litre

= 285/1000 mL

= 0.285 L

Vj = 789 mL

When converted to litre

= 789/1000 mL

= 0.789 L

These values are all going to be put values in the eqn 2 above

W = -Pext(Vj-Vi)

W = -6.0x (0.789L - 0.285L)

W = -3.024

W = -3.024 x 101.33 J

This gives us the answer

W = -306 J

Thank you!

Answer: -306 J

What is the pH value of distilled water?

Answers

Answer:

7

Explanation:

The ph level should be 7, but because it absorbs carbon dioxide from the atmosphere it’s actually slightly acidic with a pH of 5.8

pls help!!

The number that represents a neutral pH is ________.​

Answers

Answer:

7

Explanation:

7 is the number that represents a neutral pH

Which problem that the most scientists believe is partly caused by carbon dioxide?

Answers

Answer:

Climate change

Explanation:

Climate change is primarily a problem of too much carbon dioxide (CO2) in the atmosphere. This carbon overload is caused mainly when we burn fossil fuels like coal, oil and gas or cut down and burn forests

In Bohr model N3 moves up to N 4 the electron occupies distinct energy states where energy is absorbed or emmitted

Answers

Answer:

vkhcohvoccf

uxihfoydohfufyfocidicicugxigdixifxtxtduration jfhgxfcixig

cigcih

Explanation:

cihcohcohccohcjjcofidytstitddgggxogxxtdrrtteeeeeiiiixiiitttdooodooxyక్సజిఫ్స్ట్టిగ్గ్స్గ్డ్గ్

which of the following is an example of
a physical property?

Answers

Answer:

physical property is property that you can touch, smell as it is bumpy it smells like eggs.

Explanation:

YW

Answer:

Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

Explanation:

What are the two processes of ocean to cloud?

Answers

Answer: The excess amount changes from a gas into a liquid or solid (ice). The process of water changing from a gas to a liquid is called "condensation," and when gas changes directly into a solid, it is called "deposition." These two processes are how clouds form.

Which statement accurate describes plate tectonics?

Answers

Answer:

the lithosphere is broken into sections called plates.

Answer:

The lithosphere is broken into sections called plates.

Explanation:

edge2020

You have two containers. The first container contains 22.99 grams of solid
sodium (Na). The second container contains 15.999 grams of Oxygen (O).
Which container has more moles of the indicated substance? *

Answers

Answer:

The sodium has more moles.

n(Na)=2.09 mole

n(O)=0.999 mole

Which best describs the energy transformation in a battery powered flash light ?

a
Chemical, to electrical, to thermal, to radiant
b
nuclear, to electrical, to thermal, to radiant
c
Mechanical, to electrical, to Thermal, to radiant
d
Chemical, to electrical, to mechanical, to radiant

Answers

Answer:

I think it's C

Explanation:

Sorry if its wrong

Answer:

C

Explanation:

The Lewis representation above depicts a reaction between hydrogen (blue) and a main-group element from group 5A (red). In this representation, each Y atom needs electron(s) to complete its octet, and gains these electrons by forming bond(s) with atoms of H . There are unshared electron pair(s) and bonding electron pair(s) in the product molecule. The bonds in the product are _________ .

Answers

Answer:

Each Y atom needs three electrons to complete its octet by forming three bonds to hydrogen. There is one unshared pair of electrons and three bonding pairs of electrons. The bonds in the product are covalent.

Explanation:

Recall that group 5A elements contain five electrons in their outermost shell. These five electrons consists of a lone pair and three electrons that can form three bonds with hydrogen to give YH3 where Y is the group 5A element.

The YH3 molecule contains one lone(unshared) pair of electrons as well as three bonding pairs of electrons. The compounds are covalent.

When sodium atoms (Na) and chlorine atoms (CI) join to make

Answers

Answer: Potassium and fluorine

Explanation:

The two rows form bonds the easiest

Answer: #1

Explanation:

were are you guys 123456789789456123456789123456789456

Answers

Micheal told me in the closet I got some chicken I'm so sad
What are u talking about lol

SO3 is a covalent compound with no lone pairs on the central S atom. What's the structure of a molecule of SO3? Is an SO3 molecule polar or non-polar?
Question 14 options:

A)

Trigonal planar, non-polar

B)

Trigonal pyramidal, polar

C)

Trigonal planar, polar

D)

Trigonal pyramidal, non-polar

Answers

Answer:

A

Explanation:

it has non polar molecule, because it has the equal sharing of electrons, so equal repulsion from all sides. atoms are equally represented.

Answer:

Trigonal planar, non-polar

Explanation:

The half life of radium-226 is 1600 years.

a. After how many half-lives would 25% of the radium-226 remain.
b. Write a function m(t) that models the mass remaining after years.
c. How much of the sample will remain after 3000 years?
d. After how long will only 15 mg of the sample remain?

Answers

Answer:

Explanation:

a )

half life = 1600 years

50% in 1600 years

25% in next 1600 years

so 25% in total of 3200 years .

b )

disintegration constant = .693 / half life

= .693 / 1600

λ= 4.33 x 10⁻⁴ year⁻¹

m(t) = [tex]m_0e^{-\lambda t }[/tex]

m₀ is initial mass , λ =  4.33 x 10⁻⁴ year⁻¹

c )

m(t) after 3000 years , t = 3000

m(t) = [tex]m_0e^{-4.33\times10^{-4 }\times 3000 }[/tex]

= [tex]m_0e^{-1.3}[/tex]

= .2725 m₀

percentage of mass remaining = 27.25 %

25% radium-226 remain after 3200 years. 6.82 mg of sample remains after 3000 years. 15 mg of the sample will stay long about 1179. 19 years.

Half life of radium-226 = 1600 years

What is half-life?

half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay.

Calculation of each part can be done as

a )

half-life = 1600 years

50% in 1600 years

25% in next 1600 years

so 25% in total of 3200 years .

b )

Let decay function is

[tex]m(t) = m_o e^{-kt} \ \ \ \ \ ...(i)\\[/tex]

where k is decay constant

At half life,

[tex]m(t) = \frac{m_o}{2},t= 1600\ years\\So,\ \frac{m_o}{2} = m_oe^{-k1600}\\\frac{1}{2} = e^{-k1600}\\[/tex]

applying log on both sides

[tex]ln \frac{1}{2} = lne^{-1600k}\\-0.693147 = -1600 k \\k =\frac {0.693147}{1600}\\k = 4.332\times10^{-4}\\[/tex]

substitute the value of k in equation (i)

[tex]m(t) = m_oe^{-4.332\times10^{-4t}}\\m(t) = 25e^{-0.0004332t}[/tex]

c) when t = 3000 years

[tex]m(t) = 25e^{-0.0004332t}[/tex]

[tex]m(3000) = 25e^{-0.0004332\times3000}[/tex]

remain sample after 3000 years = 6.82 mg

d) when m(t) = 15 mg

[tex]15 = 25e^{-0.0004332t}\\e^{-0.0004332 t} = \frac{15}{25}\\applying\ log\ on\ both\ side\\ln \ e^{-0.0004332t}=ln(\frac{15}{25)}\\-0.0004332t = -0.510825\\t=\frac{0.510825}{0.0004332}\\t= 1179.19 \ years[/tex]

Hence, this is the required answer.

To learn more about radioactive substances, click here:

https://brainly.com/question/7144748

Nose color is an inherited trait in dogs. Two puppies from the same set of parents have different color noses. One puppy has a pink nose and one puppy has a black nose. How can puppies from the same set of parents have different color noses?

A.
The pink-nosed puppy and the black nosed puppy must not actually be related.

B.
The pink-nosed puppy and the black nosed puppy inherited different combinations of the genes for nose color from their parents.

C.
The pink-nosed puppy has a different number of chromosomes than the black nosed puppy.

D.
The pink nosed puppy and the black nosed puppy have different chromosomes for the two nose colors.

Answers

Answer:

I thin its B im not sure though

Explanation:

The puppies from the same set of parents have different color noses because the pink-nosed puppy and the black nosed puppy inherited different combinations of the genes for nose color from their parents. Thus, the correct option is B.

What is a gene?

A gene is the unit of inheritance which is made up of DNA (deoxyribonucleic acid). Every person receives two copies or alleles of each gene which is inherited from each of the two parent.

Genes are made up of DNA, so each of the chromosome contains many different genes. Genes carry the information which determines the traits or characteristics that are passed on to their offspring or inherited from the parents.

The puppies from the same set of parents have different colored noses because pink-nosed puppy and the black nosed puppy inherited different combinations of the genes for nose color from their parents.

Therefore, the correct option is B.

Learn more about Inheritance here:

https://brainly.com/question/14930526

#SPJ2

HEEEELLLPPPP PLEASE I WILL MARK BRAINLIEST

Answers

try going to the google app. i don’t know how long it will take for someone to answer this right so you could do that. just make sure when u scan it, that it’s on homework.

state Graham's law diffusion of gas mathematical expression ?​

Answers

Answer:

Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight

Explanation:

Other Questions
A wireless network administrator is using 3 access points (APs) to cover an area. At some locations, all 3 APs may be in range of a single wireless device. What wireless channels should be assigned to the APs? (Hint: Pick 3 different channels.) a. 6 b. 7 c. 1 d. 3 e. 2 f. 4 g. 5 h. 8 i. 10 j. 9 k. 11 Please help me out!!!!! How much would 7 bottles of water cost PLEASE HELP LIKE RN, thank you so much Which type of organizational structure identifies relationships between events, where one event is the result of the otherevento (1 point)O problem solutiono causelefiedOdesariptionO compare contrast Why do we manage our own emotions and that of others? What happens as a direct result of of a species' extinction?A. Loss of BiodiversityB. Habitat LossC. Climate ChangeD. Ecosystem Balance PLEASE WILL GIVE BRAINLIEST!! fill in the blanks thanks The pair of polygons is similar. Find the value of x. A. 2.5 in. B. 5 in. C. 35 in. D. 40 in. How many seconds did it take (after starting his descent) for the worker to hit the ground? Answer in units of s. Dr. Tu must administer emergency medicine to his patient, Mrs. Jones. The instructions on the medicine state that a 140 pound person must receive exactly 100 milliliters of the medicine, and that patients of different weights should receive a proportional amount of the medicine. Mrs. Jones weighs only 120 pounds. How many milliliters of the medicine should Dr. Tu administer to Mrs. Jones?Brainliest if u give answer first Thx A mutation has occurred that results in a drastic reduction in mRNA transcription from very high levels to low levels. What region is likely responsible? 17. Let f(x) = 2x2 + 5x + 6 and g(x) = 3x2 + 4x 10.a Find f(x) + g(x)b. Find f(x) g(x) Historia de la concha de pan plis Read the excerpt from the decree inscribed on the Rosetta Stone, which appears in The Riddle of the Rosetta Stone, by James Cross Giblin. and whereas he has directed that impressment for the navy shall no longer be employed; and whereas he provided that cavalry and infantry forces and ships should be sent out against those who invaded Egypt by sea and by land, laying out great sums in money and grain in order that the temples and all those who are in the land might be in safety; in return for which things the gods have given him health, victory, and power, and all other good things, and he and his children shall retain the kingship for all time. How do the details in the excerpt support the central idea that Ptolemy was a great king? They provide specific examples of Ptolemys greatness. They make a comparison of Ptolemy to other rulers. They create an image of Ptolemy as having great physical strength. They show a pattern of Ptolemy invading other countries by sea and by land. Which values from the set make this inequality true?4n What does one mole of H2O correspond to?A. 6.02 1023 molecules of H2OB. 6.02 1023 atoms of H and 6.02 X 1023 atoms of OC. 6.02 1023 atoms of OD. 6.02 1023 atoms of HE. 6.02 1023 2 atoms of H The chart shows the distances, in miles, between some towns and cities.Toby lives in Wrexham and works in Oswestry.Wrexham18Ruthina) Use the chart to find the road distancebetween Wrexham and Oswestry.152112Corwen153323OswestrySarah lives in Ruthin and works in Oswestry for5 days a week. Each day she travels to andfrom work using the route shown on the map.MOLDROTHENWRESTHAMb) How many miles, in total, does she travel toand from work each week? 231 milesCORNENOSWESTRYChoose CI 43. obesity is: a. a term used to describe a person who has a high body mass indexb. a term used to describe a person who has excessive amounts of body fatc. both a and bd. none of the above44. the organ the produces hormones such as insulin in order to break down and use food is:a. the kidneysb. the pancreas c. the intestines d. the colon45. a substance that is released by an organ or tissue in the body is called:a. cholesterol b. a hormonec. glucosed. insulin46. a disease that makes it hard for the body to control the level of glucose in the blood is:a. arteriosclerosisb. diabetesc. hypoglycemia d. cystic fibrosis47. hardening and narrowing of the arteries caused by the accumulation of fatty materials is referred to as:a. arteriosclerosis b. diabetes c. hypoglycemia d. mesothelioma48. the term _____ relates to the relative amount of muscle, fat, bone, and the organs that are in your bodya. girth measurementb. hydrostatic weightingc. body composition d. body fat49. the term _____ relates to the circumference around the persons body a. girth measurementb. hydrostatic weightingc. body fat d. body composition 50. the most reliable method of measuring body fat isa. skinfold clamperb. girth measurements c. hydrostatic weighingd. bmi calculation51. skinfold measures are most accurate when taken a. after exerciseb. before exercisec. during exercised. early in the morning, before you eat52. the tool used to take girth measurements is:a. a calculator b. a tape measure c. a rulerd. a scale