1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leni [432]
3 years ago
5

Calcium carbonate, CaCO3(s), decomposes upon heating to give CaO(s) and CO2(g). A sample of CaCO3 is decomposed, and the carbon

dioxide is collected in a sealed 250 mL flask. After the decomposition is complete, the gas has a pressure of 1.3 atm at a temperature of 33°C. How many moles of CO2 gas were generated? (Ideal gas equation:
Chemistry
2 answers:
vovangra [49]3 years ago
8 0

Answer:

0.013 mole

Explanation:

Step 1:

Data obtained from the question. This includes:

Volume (V) = 250 mL

Pressure (P) = 1.3 atm

Temperature (T) = 33°C

Number of mole of (n) =?

Step 2:

Conversion to appropriate units.

The volume and the temperature given in the question must be converted to their appropriate unit in order to obtain the answer to the question in the right unit.

For volume:

We must, convert mL to L

1000 mL = 1 L

Therefore, 250 mL = 250/1000 = 0.25 L

For temperature:

We, must convert °C to K.

K = °C + 273

K = 33°C + 273

K = 306K

Step 3:

Determination of the number of mole of CO2.

Applying the ideal gas equation:

PV = nRT

The number of mole of CO2 can be obtained as follow:

V = 0.25 L

P = 1.3 atm

T = 306K

R (gas constant) = 0.082atm.L/Kmol

Number of mole of (n) =?

PV = nRT

1.3 x 0.25 = n x 0.082 x 306

Divide both side by 0.082 x 306

n = (1.3 x 0.25) /(0.082 x 306)

n = 0.013 mole

tatyana61 [14]3 years ago
7 0

Answer:

n_{CO_2}=0.013molCO_2

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

Thus, over the given conditions, we use the ideal gas equation to compute the moles of carbon dioxide that were generated directly, as it is the only gaseous species:

PV=n_{CO_2}RT\\\\n_{CO_2}=\frac{PV}{RT} =\frac{1.3atm*250mL*\frac{1L}{1000mL} }{0.082\frac{atm*L}{mol*K}*(33+273.15)K} \\\\n_{CO_2}=0.013molCO_2

Best regards.

You might be interested in
An example of polytamic anoin would be a. Ca+2 b. NH4+ c. F d. PO4-3
ella [17]

PO_4^{-3} and NH^{4+} are polyatomic anions composed of two or more atoms.

<h3>What is a polyatomic anion?</h3>

A polyatomic ion is an ion composed of two or more atoms. Examples: The hydroxide cation (OH^-) and the phosphate cation (PO_4^{3-}) are both polyatomic ions.

PO_4^{-3} and NH^{4+} are the polyatomic anions because both contain more than 1 atom.

Hence,PO_4{-3} and NH^{4+} are polyatomic anions composed of two or more atoms.

Learn more about the polyatomic anion here:

brainly.com/question/13544727

#SPJ1

8 0
2 years ago
How many hydrogen atoms are present in a hydrocarbon chain of five carbon atoms with two double bonds and two single bonds?
VashaNatasha [74]
Is it multiple choice? if not, five.

7 0
3 years ago
Use the mole concept to calculate the number of atoms that are in a 1.75-mol sample of CHCl3.
Fiesta28 [93]
This is how I got to that answer. Since we don't know how many atoms there are in a mole, we use the number 6.02 x 10^-23. Now, just plug in what you have in the equation: 

<span>1.75 moles ChCl3 x (6.02 x 10 ^-23) / 1 mole = 1.0535 x 10^-22 atoms. </span>
6 0
3 years ago
What is the volume of 2.1 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
steposvetlana [31]
STP condition mean we have P=1 atm. T=273K. R=ideal gas constant, but make sure you use the one that has the same units of pressure, temperature that you are using. In this case R=0.0821 L*atm K^-1mol^1. You are provided with n=2.1 moles.
V=nRTP
Input your values and solve.
3 0
3 years ago
Wh
sergey [27]

The correct option would be 3.

Only thermal energy changes


Hope this helps you

Brainliest would be appreciated

-AaronWiseIsBae

5 0
3 years ago
Read 2 more answers
Other questions:
  • Is it always possible to identify something as an element compound pure substance or mixture
    10·1 answer
  • What is the mass (in grams) of 169 mole of CF4
    8·1 answer
  • “While observing a chemical reaction, how can you tell which reactant is limiting?”
    14·1 answer
  • Can someone plzzz help with numbers 14,15,#1 plzzz show work too cuz I don’t understand this plzzz help me
    5·1 answer
  • Considering the patterns you have noticed in this activity, which statement best explains why a compound with the molecular form
    15·1 answer
  • Draw the correct Lewis structure of this molecule by placing atoms on the canvas and connecting them with bonds. Include all hyd
    8·1 answer
  • HELP PLS THIS IS DUE IN 5 MINUTES!!
    5·2 answers
  • How many neutrons does this atom have?
    9·2 answers
  • At 303 K, the volume of a gas is 30.0 ml. At constant pressure, what is the new
    11·1 answer
  • Which word equation best describes the following formula equation:<br> 4Al + 302 + 2Al2O3?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!