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bonufazy [111]
3 years ago
13

7. The molar mass of carbon is 12.0 g/mol, of hydrogen is 1.0 g/mol, and of oxygen is 16.0 g/mol.

Chemistry
1 answer:
Ivan3 years ago
3 0

Answer:

2 x 12.0g/mol + 1 x6 +  16.0 g/mol

Explanation:

molecular formula = C₂H₆O           ( carbon= 12g/mol  H= 1g     O=16)

                              =   2 x 12 + 6 x 1 + 16

                             =  46 g    Molecular mass                                

                             

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A 48.3 mL sample of gas in a cylinder is warmed from 22 °C to
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Answer:

58.94 mL

Explanation:

V1 = 48.3 mL             V2 = v mL

T1 = 22 degree celsius OR 295 k         T2 = 87 degree celsius OR 360 k

We will use the gas equation:

PV = nRT

Since the Pressure (p) , number of moles (n) and the universal gas constant(R) are all constants in this given scenario,

we can say that

V / T = k , (where k is a constant)

Since this is the first case,

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For case 2:

Since we have the same constants, the equation will be the same

V / T = k (where k is the same constant from before)

V2 / T2 = k (Since this is the second case) ------------------(2)

From (1) and (2):

V1 / T1 = V2 / T2

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