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Fudgin [204]
3 years ago
8

A bedroom has a volume of 118 m3 What is its volume in km3?

Chemistry
2 answers:
ruslelena [56]3 years ago
5 0
I believe the problem is just simply asking for us to convert the value from one unit to the other. This case from m^3 to km^3. From the SI units, we know 1 km is equal to 1000 m. We do as follows:

118 m^3 ( 1 km / 1000 m )^3 = 1.18 x 10^-7 km^3
trapecia [35]3 years ago
5 0

Answer:  118\times 10^{-9}km^3

Explanation:

Volume of the gas is defined as the space occupied by a substance. It is expressed in units like cm^3, m^3 , L and ml etc

All these units of volume are inter convertible.

We are given:

Volume of the gas = 118m^3

Converting this unit of volume into 'L' by using conversion factor:

1m^3=10^{-9}km^3

118m^3=\frac{10^{-9}}{1}\times 118=118\times 10^{-9}km^3

Hence, the volume will be 118\times 10^{-9}km^3

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<u>Answer:</u> The mass of iron produced will be 77.6 grams

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\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}     .....(1)

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By Stoichiometry of the reaction:

2 moles of aluminium metal produces 3 mole of iron metal

So, 0.93 moles of aluminium metal will produce = \frac{3}{2}\times 0.93=1.395moles of iron metal

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Molar mass of iron = 55.85 g/mol

Moles of iron = 1.395 moles

Putting values in equation 1, we get:

1.395mol=\frac{\text{Mass of iron}}{55.85g/mol}\\\\\text{Mass of iron}=(1.395mol\times 55.85g/mol)=77.6g

Hence, the mass of iron produced will be 77.6 grams

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