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MAVERICK [17]
3 years ago
10

Will mark brainliest!

Chemistry
1 answer:
KatRina [158]3 years ago
6 0

Answer:

b. 1.20x10^24 molecules NH3

Explanation:

At STP, one mole of gas has a volume of 22.4 dm^3

1 dm^3 = 1 L

Therefore,

44.8 L = 44.8 dm^3

This means that there are 2 moles of NH3 in 44.8 L at STP.

number of molecules = number of moles times avogadro's number

Avogadro's number = 6.02x10^23

Numner of molecules = 2 x 6.02x10^23

= 1.204x10^23 molecules

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What is the mass, in grams, 6.5 mol of sodium nitrate (nano3)? please show all work?
ladessa [460]
Mass is the property of a physical body and the resistance to acceleration when a net force is applied on the body.  
The atomic mass of sodium (Na) is = 22.98 
The atomic mass of nitrate (N) is = 14.00 
The atomic mass of oxygen (O) is = 15.99  
The sodium nitrate (NaNO3) consists of the atomic masses of Na+N+(O)3 = 85 grams  
Therefore, the mass of 6.5 mol of sodium nitrate is = 6.5 * 1 mol of NaNO3 
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3 years ago
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Suggest a name for a compound containing potassium, carbon and oxygen.
spin [16.1K]

Answer:

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Please Mark Brainliest If This Helped!

4 0
2 years ago
A sample of oxygen occupied 626 mL when the pressure increased to 874.27 mm Hg. At constant temperature, what volume did the gas
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Answer:

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