Gas Stoichiometry - Quiz Quiz

Question 1

Which gas occupies the highest volume at STP?

Revolt · Accepted Answer

C: 2 mol  of  cap h sub 2

Question 2

Decomposition of potassium chlorate open paren KClO sub 3 close paren produces potassium chloride KCl and pure oxygen open paren cap o sub 2 close paren according to this balanced equation. 2 KCIO sub 3 s rightarrow 2 KCl s plus 3 cap o sub 2 g What volume of oxygen gas is released at STP if 10 point 0 g of potassium chlorate is decomposed? (The molar mass of KClO sub 3 is 122 point 5 5 g over mol )

Revolt · Accepted Answer

C: 2 point 7 4 liters

Question 3

What volume would 3 point 0 1 times 10 to the 23th power molecules of oxygen gas occupy at STP?

Revolt · Accepted Answer

D: 22 point 4 liters

Question 4

Consider the reaction. cap n sub 2 times g plus 3 cap h sub 2 g rightarrow 2 NH sub 3 g How many grams of cap n sub 2 are required to produce 100 point 0 liters of NH sub 3 at STP?

Revolt · Accepted Answer

C: 62 point 5 g

Question 5

Consider the reaction. CH sub 4 times g plus 2 cap o sub 2 g rightarrow CO sub 2 times g plus 2 cap h sub 2 cap o g How many grams of methane should be burned in an excess of oxygen at STP to obtain 5 point 6 liters of carbon dioxide?

Revolt · Accepted Answer

A: 16 point 0 g; B: 32 point 0 g

Question 6

What is the molar volume of a gas at standard temperature and pressure?

Revolt · Accepted Answer

A: 22 point 4 liters; C: 1 point 0 liters

Question 7

Consider the equation. 2 cap h sub 2 g plus cap o sub 2 times g rightarrow 2 cap h sub 2 cap o g Which represents the correct mass-volume relationship at STP?

Revolt · Accepted Answer

B: 2 point 0 0 g  of  cap h sub 2   react with an excess of  cap o sub 2   to produce  open paren 2 times 22 point 4 close paren liters  of  cap h sub 2 cap o .

Question 8

Which correctly defines molar volume of an ideal gas?

Revolt · Accepted Answer

B: the volume that is occupied by  1 mol  of an ideal gas at STP, which is  22 point 4 liters

Question 9

Under which conditions does the molar volume of a gas decrease?

Revolt · Accepted Answer

A: at  273 cap k  and at  2 point 0 atm

Question 10

According to the equation 2 Na plus 2 cap h sub 2 cap o rightarrow 2 NaOH plus cap h sub 2 , what mass of Na is required to yield 22 point 4 liters of cap h sub 2 at STP? (The atomic mass of Na is 22 point 9 9 u )

Revolt · Accepted Answer

C: 23 point 0 g

Gas Stoichiometry - Quiz Quiz Answers

More from this Course

TRY EDGENUITY HACKS