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aivan3 [116]
4 years ago
11

What element has a mass of 32.8g and occupies 5.6L at STP?

Chemistry
1 answer:
fomenos4 years ago
6 0
At Standard Temperature and Pressure (STP), all gases have a volume of 22.4L/mol.

First, let's find the mole of the gas:
5.6L* (1mol/ 22.4L)= 0.25mol

Now, let's find the molar mass of the gas:
32.8g/ 0.25 mol= 131.2g/mol

Looking at the periodic table, the element is Xe.

Hope this would help~


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Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to calculate the required grams of HCl by firstly identifying the limiting reactant via the moles of each reactant as they are in a 1:1 mole ratio:

n_{H_2}=1.00gH_2*\frac{1molH_2}{2.02gH_2}=0.500molH_2\\\\ n_{Cl_2}=55.0gCl_2*\frac{1molCl_2}{70.9gCl_2}=0.776molCl_2

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Regards!

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