Chemistry High School

CH3OH can be synthesized by the reaction:
COg + 2 H2g– CH30Hg
What volume of CH3OH gas (in L) can be synthesized if 18.6 L of H2 gas completely reacts at STP conditions?

Answers

Answer 1

Answer:

55

Explanation:

Related Questions

What processes contribute water to surface water sources?(science)

Answers

Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.

If 115grams of a substance reacts with 84grams of another substance, what will be the mass of the products after the reaction?

Answers

Isn’t it 115+84 so 199

Turbo or supercharger

Answers

Honestly I like turbocharged.
Each can be used to increase power, fuel economy, or both, and each has pros and cons. But superchargers can provide their boost almost instantly, whereas turbochargers typically suffer some response lag while the exhaust pressure required to spin the turbine builds. So I would recommend a supercharger.

What is the molar mass of a sample of gas that has a density of 2.85g/L at 101kPa pressure
and 29°C? Name the law that is used to solve this problem.

Answers

Answer:71.25

Explanation:

The molar mass of a sample of gas that has a density of 2.85g/L at 101 kPa pressure and 29°C is 71.37  g mol⁻¹ and It can be solved using Ideal gas law.

What is Ideal gas law ?

The ideal gas law is an equation of state that describes ideal gases.

This equation of state relates a gas’s pressure, volume, temperature, and mass, and is very useful for describing how gases will behave in ideal conditions.

This is the most common equation of state for gases.

Ideal Gas equation ;

PV = nRT

Molar mass (Mm) = m /n

Where ;

m = given massn = number of moles

we also know,

Density (D) = m / v

Where ;

m = massv = volume

Now, Putting the formula of Molar mass and Density in ideal gas equation we get ;

Molar mass = D RT/ P

Given ;

Density = 2.85 g/LPressure = 101kpa (= 0.99 atm)Temperature = 29°C (= 302.15 K)(Gas constant) R = 0.0821

Putting all the values in  the above equation of molar mass ;

Molar mass = 2.85 x 0.0821 x 302 / 0.99

                    = 71.37  g mol⁻¹

Learn more about Ideal gas law here ;

https://brainly.com/question/13821925

#SPJ2

How many moon phases will we view in one week?
1
2
3
4

Answers

Answer:

4

Explanation:

Explain why a climax community is not always a forest.

Answers

They are all in forest climax means forest

Your friend sits on a 25.0L exercise ball, squishing the ball so that it is only 17.5L. What is the pressure inside the ball if the outside air pressure is 100. kPa?

Use the Boyle's Law equation to determine the answer.

Answers

Answer:

b

Explanation: because i took the test and got a 100

WILL GIVE BRAINLIEST

Answers

Answer:

b

Explanation:

Which option correctly orders the elements by increasing reactivity?
Hint: Review your periodic table.


Na < Li < K
Na < Li < K, ,

K < Na < Li
K < Na < Li, ,

Li < Na < K
Li < Na < K, ,

Na < K < Li

Answers

Answer: Li < Na < K is the answer

Explanation:

The following diagram shows a single cell. Is the cell eukaryotic or prokaryotic? Explain your reasoning. *

Answers

Answer:

because it is a single cell. Cell A, because a nuclear membrane contains the cell’s DNA. Cell B, because it is much smaller. Cell B, because it contains genetic material

Explanation:

The Rockies and the Appalachians are two major mountain ranges in the United States. Which type of plate movement caused these mountain ranges to form?
a divergent
b oceanic
c convergent
d transform​

Answers

Answer:

Poop

Explanation:

Answer:

convergergent

Explanation:

Mountains form where two continental plates collide. Since both plates have a similar thickness and weight, neither one will sink under the other. Instead, they crumple and fold until the rocks are forced up to form a mountain range. As the plates continue to collide, mountains will get taller and taller.

what is molarity of 3 mole of hydrochloric acid in 3L of water

Answers

Answer:

1

Explanation:

The molarity of the hydrochloric acid solution is 1 M

Molarity is simply defined as the mole of solute per unit litre of water. Mathematically, it can be expressed as:

[tex]Molarity = \frac{mole}{volume}[/tex]

With the above information in mind, we can obtain the molarity of the hydrochloric acid solution as follow:

Mole of HCl = 3 moles

Volume of water = 3 L

Molarity =?

[tex]Molarity = \frac{mole}{volume}\\Molarity = \frac{3}{3}\\Molarity = 1 M[/tex]

Therefore, the molarity of the hydrochloric acid solution is 1 M.

Learn more: https://brainly.com/question/15012982

Difference between Duplet elements and octel elements?​

Answers

Explanation:

octet is an atom or an ion having a maximum of eight electrons in the outermost shell while duplet is an atom having the maximum of two electrons in the outermost shell

The key difference between octet and duplet is that octet is an atom or an ion having a maximum of eight electrons in the outermost shell while duplet is an atom having the maximum of two electrons in the outermost shell.

Volcanic eruptions can be very dangerous for nearby human and animal populations. One danger is that lava and ash may bury habitats. What is another danger during a volcanic eruption?
A.
Lava or hot debris may start fires.
B.
Lava flows may cause tsunamis.
C.
Volcanic eruptions always cause flooding.
D.
Volcanic eruptions always cause high winds.

Answers

Answer:

B. Lava flows may cause tsunamis.

Guys help me





Please

Answers

Answer:

8.38×10raise to power 23

Explanation:

mass of sugar=density ×volume

=. 1.59g/ml×25ml=39.75

no. of miles= given mass/ molar mass

= 39.75/342.3g / mole

1 mole of sugar =C12 H22 O11

contains

12× 6.023 × 10 ∆23=72.28× 10∆ 23 ×6.023×10²³

= 8.38× 10²³

What do all living organisms in an area make up?

Answers

B Is the answer! Hope this helps

Hydrogen and Oxygen combine to form water. In this chemical reaction, who represents the reactions(s)

A. water
B. oxygen and water
C.hydrogen and water
D. hydrogen and oxygen

Answers

I think it is D but I’m not sure

Which equation is balanced?
A. H 2 + O 2 → H 2O
B. 2Na + Cl 2 → 2NaCl
C. KClO 3 → KCl 2 + 3O 2
D. CH 4 + 2O 2 → CO 2 + H 2 O

Answers

B. is the correct answer

Because in both sides (reactant and product) are:
Na= 2. Na=2
Cl=2 Cl=2

So this equation is balanced

PLEASE HELP "Which of the following substances would have the lower concentration of hydrogen ions ?"

Answers

The lower the pH, the greater the concentration of hydrogen ions (this is one of the definitions of an acid: a substance that increases the hydrogen ion concentration in water). So the answer here would be the one denoting the highest pH value, since that would indicate the smallest concentration of hydrogen ions.

That would be the substance with a pH of 11.2. Thus, the second answer choice here would be correct.

help pls this is physical science (9th grade )

Answers

Answer:

mamamkalalllaamakkaoakmaa

A sample of oxygen gas occupies a volume of 229.5 mL at 762.7 torr pressure. What volume in mL will it occupy at 704.5 torr pressure?

Answers

Answer:

248.4 mL

Explanation:

In order to answer this problem we can use Boyle's law, which states that at a constant composition:

P₁V₁ = P₂V₂

Where in this case:

P₁ = 762.7 torrV₁ = 229.5 mLP₂ = 704.5 torrV₂ = ?

We input the data:

762.7 torr * 229.5 mL = 704.5 torr * V₂

And solve for V₂:

V₂ = 248.4 mL

Help!! < PHYSICAL SCIENCE>

Answers

The answer is B or the second answer

How do trends in the periodic table help predict the properties of an element

Answers

as you move around there is a change in: electronegativies, ionisation energies, atomic radius etc. different amounts of these properties are going to effect how the element acts

If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg

Answers

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

What is the pH of a solution with an OH- ion concentration of 4.01E-4?

Answers

Answer:

[H]=10^-4 when ph=4 higher

[H]=10^-5 when ph =5 lower

Explanation:

brains

What is a type of radiation produced when the unstable nucleus of a radioactive element emits a helium nucleus?


A. deuterium radiation
B. beta radiation
C. alpha radiation
D. gamma radiation

Answers

Es la respuesta C. Alpha radiation

The following diagram shows a single cell. Is the cell eukaryotic or prokaryotic? Explain your reasoning

Answers

Answer:

eukaryotic because it has a nucleus

Explanation:

When an object is acted on by unbalanced forces, the object will -

Answers

Answer:

hope it helps and thank you for the points

Ayúdenme por favor
Please help me

Answers

The answers are;
2H2+O2===>2H2O
N2+3H2==>2NH3
C3H8+5O2==>4H20+3CO2
CH4+2O2===>CO2+2H2O
2HBr +Fe==>FeBr2 +H2
I hope it helped

PLS HELP ME!!!!!!!!!!!!!! I DON'T HAVE A LOT OF TIME !!!!!!!!

Answers

Answer: Well i think i have saw this i wolud say B hope this helps

Explanation:

Other Questions
Please I need help really fast A farmer owns a total of 9 acres of land. The land is separated into 5 1/4 equally sized sections. How many acres are in each section? If an acid and a base react, the product(s) will be ____.A salt Neutral waterA salt and water A metal and water During the late 1800's, which of the following would be at the mercy of the political machine? A. A boss B. Immigrants C. Judges D. A politician Hello, I'm 18 yrs, I just wanted to see the answer pls for this! pls help find the answer !! FIND EG A trampoline spring has a force constant k = 800 N/m and is stretched exactly 17.5cm. What is the energy required to do this? What are the chemical reactions involved in CO2 emission? A crew of workers paved 3/15 of mile in 20 minutes. If they work at the same rate, how much of a mile will they pave in 1 hour (Will give BRAINLIEST)5.4 - Abolitionism (5 Reading Check Questions)What early efforts attempted to end slavery?Describe the contributions of Frederick Douglass.Describe the contributions of William Lloyd Garrison.Did the press play an important role in the abolition movement? Explain.Provide a summary of the reasons many northerners opposed abolition? 14. Many South Asians send home ______________ that they make in other countries to help their families. Solve for x help pls What element of art does this photograph show? A. shape B. space C. form D. tone E. line Josiah had 128 toy cars. If he organizes them into groups of 7 , how many cars will be in the final group? What is the meaning of union? Use it in a sentence. One fruit punch has 10% juice and another has 50%. How much of the 10% should be mixed with 30 gal of the 50% to create punch that is 25% juice What should a health care professional do if they have been exposed to a bloodborne pathogen? (Be specific) PLEASE HELP I HAVE 30 MINUTES UNTIL CLASS ENDS PLEASE HELP HELP NOW WILL GIVE POINTS TO IF HELPED, If the JellyBelly factory had a bagging machine that loaded 1000 jelly beans into a bag that is allowed a 0.5% error range amount. What is the range of jelly beans [x] that could be in the bag, without it being rejected? : x , The chemical symbols of hydrogen, calcium and chlorine are:H, C, ClH, C, CnH, Ca, ClHn, Cal, Cl