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aleksandrvk [35]
3 years ago
12

Given that the molar mass of carbon is 12 g/mol and the molar mass of oxygen is 16 g/mol, calculate the molar mass of carbon dio

xide, co2.
Chemistry
1 answer:
nekit [7.7K]3 years ago
7 0
Molar mass of oxygen is:
M(O)=16 g/mol
Molar mass of carbon is:
M(C)=12 g/mol  
Molar mass of carbon dioxide is:
M(CO2)=M(C)+2*M(O)
 M(CO2)=12 g/mol+2*16g/mol
M(CO2)=44 g/mol

<span>Molar mass(M) is the mass of 1 mole of the substance (grams per mole of a compound).</span>
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c.

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What do chemists use percent yield calculations for in the real world?
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C. To determine how efficient reactions are.

D. To determine how much reactant they need.

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8 0
2 years ago
How many liters of O2 gas will be produced at STP from 4 moles of KC1O3
quester [9]

Answer:

V = 134.5 L

Explanation:

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Chemical equation:

2KClO₃  →  2KCl   + 3O₂

Now we will compare the moles of KClO₃ with oxygen.

                    KClO₃        :           O₂

                        2            :           3

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V = nRT/P

V = 6 mol × 0.0821 atm.L/mol.K × 273 K / 1atm

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V = 134.5 L

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