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3 years ago

What is the % yield of CO2 if 10g of CO produces 12.8 g CO2? 2CO + O2 → 2CO2

Chemistry

2 answers:

lara31 [8.8K]3 years ago

7 0

The % yield is 81.5 :DDDDDD

Leokris [45]3 years ago

3 0

Moles CO = 10.0 g / 28.01 g/mol = 0.357
the ratio between CO and CO2 is 2 : 2 ( or 1 : 1) so we would get 0.357 mole of CO2 ( 100% yield) 

mass CO2 = 0.357 mol x 44.0098 g/mol = 15.7 g ( theoretical yield) 

% yield = 12.8 x 100 / 15.7 = 81.5

Hope this helps.

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3 years ago

4.00 moles of CU(CN)2 Find the number of grams

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Hey there!

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-----------------------------------

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3 years ago

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3 years ago

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4 years ago

How many grams are in 11.9 moles of chromirum

faust18 [17]

Answer:

Explanation:

Method 1 proportion

1 mole of chromium is 52 grams

11.9 moles = x grams

1/11.9 = 52/x Cross multiply

x = 11.9 * 52

x = 618.8 grams

Now I have used an approximate mass for Chromium. The answer you get here is expected to reflect the weigth given on your periodic table Use that to get your answer. You should give a number very close to mine. Round to 3 places as in 619.

Method Two Formula

mols = given mass / molecular mass

11.9 = given mass / 51.9961 Multiply both sides by 51.9961

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3 0

3 years ago