Answer:
The volume of CO₂ produced is 8.4 L
Explanation:
The mass of propane in the reaction C₃H₈ = 20 grams
The mass of, oxygen, O₂ in the reaction = 20 grams
The produce of the reaction are carbon dioxide, CO₂ and water, H₂O
The balanced equation of the (combustion) reaction can be presented as follows;
C₃H₈ (g) + 5O₂ (g) → 3CO₂ (g) + 4H₂O (g)
Therefore, one mole of propane, C₃H₈, reacts with five moles of oxygen, O₂, to produce three moles of carbon dioxide, CO₂, and four moles of water molecules, H₂O, as steam
The number of moles = Mass/(Molar mass)
The molar mass of propane, C₃H₈ = 44.1 g/mol
The number of moles of propane in 16 grams of propane = 16/44.1 ≈ 0.3628 moles
The molar mass of oxygen, O₂ = 32.0 g/mol
The number of moles of oxygen in 20 grams of propane = 20/32 ≈ 0.625 moles
Therefore;
Given that 1 mole of C₃H₈ reacts with 5 moles of O₂
1 mole of O₂ will react with 1/5 moles of C₃H₈
0.625 moles of O₂ will react with 0.625/5 = 0.125 moles of C₃H₈ to produce 3 × 0.125 = 0.375 moles of CO₂
1 mole of an ideal gas occupies 22.4 L at standard temperature and pressure
Taking CO₂ as an ideal gas, we have;
0.375 mole of CO₂ will occupy 0.375 × 22.4 L = 8.4 L
Therefore, the volume of CO₂ produced = The volume occupied by the 0.375 moles of CO₂ = 8.4 L.
student carries out a titration to determine the concentration of a solution of
nitric acid. She titrates the solution of nitric acid against a standard solution
of sodium hydroxide with a known concentration of 0.0998 mol/dm². She
finds that 21.80 cm of the nitric acid solution is needed to exactly neutralise
25.0 cm of the sodium hydroxide solution.
Calculate the concentration of the nitric acid solution. Give your answer to
three significant figures.
The equation for the neutralisation reaction is
HNO3 + NaOH → NaNO3 + H2O
The concentration of the Nitric acid solution : 0.114 M
Further explanationTitration is a procedure for determining the concentration of a solution (analyte) by reacting with another solution whose known concentration (usually a standard solution) is called the titrant. Determination of the endpoint/equivalence point of the reaction can use indicators according to the appropriate pH range
Titrations can be acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases
Reaction
HNO₃ + NaOH → NaNO₃ + H₂O
Concentration a standard solution of sodium hydroxide : 0.0998 mol/dm³ , and the volume = 25 cm³
moles NaOH=
[tex]\tt mol=M\times V\\\\mol=0.0998\times 25\\\\mol=2.495~mlmoles[/tex]
From the equation, mol ratio HNO₃ : NaOH = 1 : 1, so mol HNO₃ = mol NaOH=2.495 mlmoles
The volume of HNO₃ = 21.8 cm³, so the concentration :
[tex]\tt M=\dfrac{n}{V}\\\\M=\dfrac{2.495}{21.8}\\\\M=0.114[/tex]
The concentration of the nitric acid solution is 0.11445 mol/dm³
From the question,
We are to calculate the concentration of the nitric acid solution
The given balanced chemical equation for the reaction is
HNO₃ + NaOH → NaNO₃ + H₂O
This means 1 mole of HNO₃ is needed to completely neutralize 1 mole of NaOH
Using the formula
[tex]\frac{C_{A}V_{A} }{C_{B}V_{B}} = \frac{n_{A}}{n_{B}}[/tex]
Where [tex]C_{A}[/tex] is the concentration of acid
[tex]C_{B}[/tex] is the concentration of base
[tex]V_{A}[/tex] is the volume of acid
[tex]V_{B}[/tex] is the volume of base
[tex]n_{A}[/tex] is the mole ratio of acid
[tex]n_{B}[/tex] is the mole ratio of base
From the given information
[tex]C_{B}= 0.0998\ mol/dm^{3}[/tex]
[tex]V_{A} = 21.80 \ cm^{3}[/tex]
[tex]V_{B} = 25.0 \ cm^{3}[/tex]
From the balanced chemical equation
[tex]n_{A} = 1[/tex]
[tex]n_{B} =1[/tex]
Putting the parameters into the formula, we get
[tex]\frac{C_{A} \times 21.80 }{0.0998 \times 25.0} = \frac{1}{1}[/tex]
Then,
[tex]C_{A} \times 21.80=0.0998 \times 25.0[/tex]
∴ [tex]C_{A}=\frac{0.0998 \times 25.0}{21.80}[/tex]
[tex]C_{A} =\frac{2.495}{21.80}[/tex]
[tex]C_{A} = 0.11445 \ mol/dm^{3}[/tex]
Hence, the concentration of the nitric acid solution is 0.11445 mol/dm³
Learn more here: https://brainly.com/question/14014457
Green energy may also be referred to as renewable or clean energy.
True
False
What is the movement of particles of an object on the amount of what have
Answer:
i just ad the same question and but i fon know what ther answrr ied so i cant hep you but i had he smae question on rge mdhfyqf
Explanation:
5)
Why do elements in the same family generally have similar properties?
Answer: Elements in the same family generally have similar properties because they contain the same number of the electrons, for instance.
Hope this helped!
If someone gave you flour, sugar, butter, eggs, baking soda, and salt, what could those ingredients turn into?
Answer:
You can make Cake CAke Cake Cake and other stuff too Ig
Explanation:
In Philip’s French class, the students are learning how to pronounce closed vowels and open vowels. The students are most likely studying French __________. A. syntax B. phonemes C. semantics D. morphemes
Answer:
It sounds like they are studying French phonemes
Explanations:
I just learned this.
The students were most likely studying French phonemes.
Words are distinguished from each other by respective sounds of the vowels in the word. There are open vowels and there are closed vowels. These exist in every language.
The part of language learning that has to do with the differentiation of pronunciation of sounds is called phonemes. This means that the students were most likely studying French phonemes.
Learn more: https://brainly.com/question/7618756
what is the basis for the classification of organic compounds?
Answer:
organic compounds are classified based on functoin group
Explanation:
functional group is part of molecule or compound that determine the properties of that molecule or compound.
In chemistry, organic compounds are substances that have a covalently linked carbon atom. These compounds are classified based on the functional group and structures.
What are organic compounds?Organic compounds are said to be the compounds that have the presence of the carbon atom/s linked to the other atoms including nitrogen, oxygen, and hydrogen through a covalent bond.
The organic compounds are classified based on their structures and functional groups attached to their side chains. The functional groups include alkynes, alkenes, alcohols, carbonyl, nitriles, amines, etc.
The compounds can also be categorized based on the open or closed chain structures that can be homocyclic or heterocyclic. Further, the compounds can be aromatic or alicyclic.
Therefore, organic compounds are classified based on their functional groups and structures.
Learn more about organic compounds here:
https://brainly.com/question/13245955
#SPJ2
What would be the volume, in liters measured at STP, of 0.56 moles of carbon monoxide?
Answer:
"This conversions relies on the fact that a mole of gas at STP has a volume of 22.4 L. It is important to note, however, that if the conditions of the gas are different this conversion will NOT work. Under those conditions you must use the ideal gas law to convert between moles and liters."
A substance has a mass of 100 g and a volume of 10 mL. What is the
density of the substance? *
0 0.05 g/mL
0 2.0 g/mL
0 10 g/mL
0 20 g/mL
Answer:
10 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question we have
[tex]denstity = \frac{100}{10} \\ [/tex]
We have the final answer as
10 g/mLHope this helps you
Answer:
thanks
Explanation:
FIRST PERSON ANSWER GETS PTS, BRAINLIEST, And SUPRISE
A substance dissolved in a liquid is a
solution
evaporation
vein
geode
which type of intermolecular force in water creates the surface tension that allows the stones to skip across the top of the water
Answer:
Hydrogen bonding
Explanation:
Water is a compound found readily in nature. It is made up of interatomic forces of covalent bonds that connects the hydrogen and oxygen bonds together in a definite ratio.
The intermolecular forces are responsible for the physical properties of substances. These forces allows a compound to behave in certain ways. In water, the intermolecular bonding present are the very strong hydrogen bonds. For this bond type, the hydrogen of one water molecule is firmly attached to the oxygen of another water molecule. The bonds are very strong forces.When evaluating a paper delivery, a homeowner would be most concerned about ____. a. the accuracy of the throws c. the speed of the throws b. the precision of the throws d. the acceleration of the throws Please select the best answer from the choices provided
Answer:
b. the precision of the throws
Explanation:
When dealing with paper delivery homeowners are mainly concerned about the precision of the throws. They technically want the paper to land directly on their front door. Landing there, the paper will be protected from the rain and be visible for the homeowner to easily see it and pick it up in the morning when they wake up. Bad precision can lead the paper to fall into a puddle or on the grass where it will get wet and become useless or even end up breaking a window or other fragile items.
(b) largest radius: S, CI, P
Answer:
P
Explanation:
radius decreases as you go from left to right
before the quarry was dug, the land contained more vegetation . what impact has this change most likely had on the local ecosystem
somebody please help me!!
Answer:
The given isotope is Br 80
If 35 protons present then its atomic number is 35
Mass number is 80 so its meutrons are 45 because proton+ neutron = mass number
Its electron are 36 because of negative one charge
Explanation:
What is needed for a wind farm to be effective
Answer:
for a effective wind farm you would need wind turbines a windy area a rotation powered generator and something to use it on
Explanation:
An object has a momentum of 5 kg m/s and a mass of 2 kg. How fast is it moving?
Answer:
2.5 meter per second
Explanation:
momentum = mass multiplied by velocity
please mark me brainliest
At 35°C and 2 atm of pressure, the volume of gas is 200 ml. If the temperature changes to
55°C and the pressure changes to 4 atm, what is the new volume of gas?
Answer:
V₂ = 106.5 mL
Explanation:
Given data:
Initial volume =200 mL
Initial pressure = 2 atm
Initial temperature = 35 °C (35 +273 = 308 K)
Final temperature = 55°C (55+273 = 328 K)
Final volume = ?
Final pressure = 4 atm
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 2 atm ×200 mL × 328 K / 308 K ×4 atm
V₂ = 131200 atm .mL. K / 1232 K.atm
V₂ = 106.5 mL
13. (03.02 LC)
Which layer is between the crust and the asthenosphere? (7 points)
O LIthosphere
O Mesosphere
O Outer core
O Inner core
ASAP please and thankyou
Options:
pollen
pistil
purple
white
Answer:
pistil
Explanation:
3Fe + 4H2O ‐----> Fe3O4 + 4H2
10 g of water vapour are passed on 16.8 g of iron which is heated till redness find the limiting reactant
The limiting reactant : Fe
Further explanationReaction
3Fe + 4H₂O ⇒ Fe₃O₄ + 4H₂
mass of H₂O = 10 g
mol H₂O (MW=18 g/mol) :
[tex]\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{10}{18}=0.56[/tex]
mass of Fe = 16.8 g
mol Fe(MW=56 g/mol) :
[tex]\tt mol=\dfrac{16.8}{56}=0.3[/tex]
Limiting reactant : the smallest ratio between mol : reaction coefficient
Fe :
[tex]\tt \dfrac{0.3}{3}=0.1[/tex]
H₂O :
[tex]\tt \dfrac{0.56}{4}=0.14[/tex]
Fe as limiting reactant
true or false: u find soil rich in humus in horizon c
Answer:
True
Explanation:
Any element above 92 on the
periodic table has to be constructed
in a lab.
A.False
B.True
answer: it should be false
true or false. sound waves are reflected off of soft surfaces
Answer:
false
Explanation:
soft surfaces absorb sound. :)
Answer:
FALSE
FALSE FALSE FALSE FALSE FALSE
Explanation:
How many atoms are in 1.5 moles of calcium
Answer:
9.0×10^23
Explanation:
1.5mols x [tex]\frac{6.022*10^{23}atoms}{1mol}[/tex]=9.0×10^23
The vertical columns (top to bottom) on the periodic table are called
Answer:
group
Explanation:
the rows are called periods
groups 1-8
Which answer correctly identifies the five levels of cell organization from simple to most complex A-bone cell, bone tissue, femur, skeleton, dog B-dog, skeleton, femur, bone tissue, bone cell C-bone tissue, dog, bone cell, femur, skeleton
Answer:
A-bone cell, bone cell C-bone tissue, bone cell bone tissue, femur, skeleton, dog B-dog.
Explanation:
It is ordered from the smallest unit (tissue microstructure) to a tissue or organ that are considered macrotisular structures.
What makes viruses so dangerous but vaccines so important? i am struggling lol
Answer:
viruses can kill you vaccines can save your life.
Explanation:
Answer:
The effect of leaky vaccines on how disease spreads is explained by the “imperfect-vaccine hypothesis”. It holds that, without vaccination, a very virulent virus can get into a population and kill infected hosts (people or animals) very quickly – before they have a chance to spread it. This means that the virus will die out very quickly too, as all potential hosts will be dead or immune to it.
Explanation:
A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy?
3920 Joules
400 Joules
4 Joules
Answer:
3920 JoulesExplanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
PE = 40 × 9.8 × 10
We have the final answer as
3920 JHope this helps you