A soil sample has a moisture content of 20%. If the dry weight of the soil is 80

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Question: A soil sample has a moisture content of 20%. If the dry weight of the soil is 80 kg, what is the weight of the water in the sample?

Options:

Correct Answer: 24 kg

Solution:

Weight of water = Moisture content × Dry weight = 0.20 × 80 kg = 16 kg.

A soil sample has a moisture content of 20%. If the dry weight of the soil is 80 kg, what is the weight of the water in the sample?

A soil sample has a moisture content of 20%. If the dry weight of the soil is 80 kg, what is the weight of the water in the sample?

Step 1: Understand that moisture content is given as a percentage, which means it represents the weight of water in relation to the dry weight of the soil.
Step 2: Convert the moisture content percentage into a decimal by dividing by 100. So, 20% becomes 0.20.
Step 3: Identify the dry weight of the soil, which is given as 80 kg.
Step 4: Use the formula to find the weight of the water: Weight of water = Moisture content (as a decimal) × Dry weight.
Step 5: Plug in the values: Weight of water = 0.20 × 80 kg.
Step 6: Calculate the result: 0.20 × 80 kg = 16 kg.
Step 7: Conclude that the weight of the water in the soil sample is 16 kg.

Moisture Content Calculation – Understanding how to calculate the weight of water in a soil sample using the moisture content and dry weight.