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3 years ago

How many grams of sulfur is there in 10.8 grams of sodium sulfate?please help

Chemistry

1 answer:

KengaRu [80]3 years ago

5 0

Answer:

2.44 g S

Explanation:

One mole of Na2SO4 contains 1 mol of S.

Step 1: Find out the moles of Na2SO4:

10.8 g Na2SO4/MM Na2SO4

Step2: Find out the moles of S:

moles S = moles Na2SO4

Step 3: Find out the mass of S.

mass S = moles S x MM S

Dimensional analysis:

? g S = 10.8 g Na2SO4 x (1mol Na2SO4/MM Na2SO4) x (1mol S/1mol Na2SO4) x (MM S/ 1 mol S) = (10.8/142.04)x32.1 = 2.44 g S

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3 years ago

A 0.98 gram sample of a volatile liquid was heated to 348 k. the gas occupied 265 ml of space at a pressure of 0.95 atm. what is

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Answer:

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Explanation:

From the question we are told that

The mass of the sample is $m = 0.98 \ g$

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The volume which the gas occupied is $V = 265 \ ml = 265 *10^{-3} L$

The pressure is $P = 0.95 \ atm$

Generally from the ideal gas equation we have that

$PV = n RT$

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8 0

3 years ago

How many grams of sulfur is there in 10.8 grams of sodium sulfate?please help ​

How many grams of sulfur is there in 10.8 grams of sodium sulfate?please help