Question 1.32 - Chemistry: Molecular Nature Of Matter And Change

Question

Express your body weight in kilograms (kg).

Step-by-Step Solution

Answer

Answer:

 

Thus, the body weight in kg is 77.28 kg.

Conversion unit of lb to kg.

Measurements are transformed into the same units in conversion units. lb can be converted to kg by multiplying with 0.453. 

The conversion unit can be thus written as:

 

Assuming weight of person and converting lbs to kg

On assuming, the average weight of any person is 170.6 lb. The weight in kg can be calculated as:

$$\begin{gathered} 1 lb =0.453 kg \\ \mathrm{Conversion} \mathrm{factor} =\frac{0.453 kg}{1 lb} \\ \mathrm{Weight} (in\mathit{ }kg) = \mathrm{Weight} (\mathit{ }in\mathit{ }lb ) \times \mathrm{Conversion} \mathrm{factor} \\ \mathrm{Weight} (\mathrm{in}\mathit{ }\mathrm{kg}) = 170.6 \cancel{\mathit{l}\mathit{b}} \times \left(\frac{0.453 \mathrm{kg}}{1\cancel{ \mathrm{lb}}}\right) \\ = 77.28\mathit{ }kg \\ \mathbf{Thus}\mathbf{ }\mathbf{the}\mathbf{ }\mathbf{weight}\mathbf{ }\mathbf{in}\mathbf{ }\mathbf{kg}\mathbf{ }\mathbf{is}\mathbf{ }\mathbf{77}\mathbf{.}\mathbf{28}\mathbf{ }\mathbf{kg}\mathbf{.} \end{gathered}$$