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SashulF [63]
3 years ago
13

What is the theoretical yield of Li3N in grams when 12.7 g of Li is heated with 34.7 g of N2

Chemistry
1 answer:
Nata [24]3 years ago
3 0
<span>12.7 g Li*(1 mole Li/6.94 g Li)=1.83 moles of Li
34.7 g N2(1 mole N2/28 g N2)=1.23
1.83 moles Li*(2 moles Li3N/6 mole Li)(34.82 grams Li3N/1 mole Li3N)=21.24g Li3N </span>
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3 years ago
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How many grams of sodium are in<br> 1.000 mole of sodium?
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Answer:

Explanation:

How many atoms are in a 3.5 g sample of sodium (Na)? In this example, multiply the grams of Na by the conversion factor 1 mol Na/ 22.98 g Na, with 22.98g being the molar mass of one mole of Na, which then allows cancelation of grams, leaving moles of Na.

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When do epa’s refrigerant management regulations exempt refrigerant from the venting prohibition
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3 years ago
Co(g) effuses at a rate that is ______ times that of cl2(g) under the same conditions.
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Answer is: the ratio of the effusion rate is 1.59 : 1.

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rate of effusion of carbon monoxide gas = 1/√28.

rate of effusion of carbon monoxide gas = 0.189.  

2) rate of effusion of chlorine = 1/√M(Cl₂).  

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= 0.189 : 0.119 / ÷0.119.

rate of effusion of carbon monoxide : rate of effusion of chlorine = 1.59 : 1.

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3 years ago
An ideal gas at constant temperature is confined in an airtight cylinder, and a piston pushes down on the gas in the cylinder. a
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