Missouri Wastewater D Practice Exam

Question: 1 / 400

What is the percent volatile solids if the ash weight is 0.0103g and the dry weight is 0.0149g?

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To find the percent of volatile solids in a sample, the formula used is:

\text{Percent Volatile Solids} = \left( \frac{\text{Dry Weight} - \text{Ash Weight}}{\text{Dry Weight}} \right) \times 100

In this scenario, the dry weight of the sample is given as 0.0149g and the ash weight is given as 0.0103g.

First, calculate the weight of the volatile solids:

\text{Volatile Solids} = \text{Dry Weight} - \text{Ash Weight} = 0.0149g - 0.0103g = 0.0046g

Next, plug this value into the formula:

\text{Percent Volatile Solids} = \left( \frac{0.0046g}{0.0149g} \right) \times 100

Calculating this gives:

\text{Percent Volatile Solids} = \left(0.3087\right) \times 100 \approx 30.87\%

This value indicates the percentage of

84%

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