HEL PLEASE What is the volume of 87.0 g of nitrogen dioxide gas (NO2) at STP?

Answer in units of L

V=1.18 L

Explanation:

Alternative solution:

Calculate how many moles

2.34

g

C

O

2

is

2.34

g

⋅

1

m

o

l

44

g

C

O

2

=

0.053

m

o

l

Simple mole ratios tell us that

1

mol of any gas at STP is

22.4

L

, but since we only have

0.053

m

o

l

, we times

22.4

L

m

o

l

by

0.053

m

o

l

.

22.4

L

m

o

l

⋅

0.053

m

o

l

=

1.18

L

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c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

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