3 years ago

A scientist is sitting in her living room and hears the wind rushing past her front door.

Chemistry

2 answers:

AVprozaik [17]3 years ago

6 0

I think the second choice but I might be wrong

Ksenya-84 [330]3 years ago

6 0

Answer:

Explanation:

There is less air pressure outside the door than inside the door.

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Calculate the mass of water produced when 7.26 g of butane reacts with excess oxygen

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11.3 g.

Explanation:

Hello there!

In this case, since the combustion of butane is:

$C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O$

Thus, since there is a 1:5 mole ratio between butane and water, we obtain the following mass of water:

$m_{H_2O}=7.26gC_4H_{10}*\frac{1molC_4H_{10}}{58.14gC_4H_{10}}*\frac{5molH_2O}{1molC_4H_{10}} *\frac{18.02gH_2O}{1molH_2O}$

Therefore, the resulting mass of water is:

$m_{H_2O}=11.3gH_2O$

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