What is the formula for calculating parts per million (ppm)? I - The ppm is a measure used for substances that are present only in trace amounts. ...
What is the formula for calculating parts per million (ppm)?
I - The ppm is a measure used for substances that are present only in trace amounts.
II - The ppm can be used to calculate the concentration of substances incorporated in different stages of food processing.
III - The ppm is calculated by dividing the weight of the substance by the weight of the solution and multiplying by one million.
a) Only statement I is correct.
b) Only statement II is correct.
c) Only statement III is correct.
d) Statements I and II are correct.
e) Statements II and III are correct.
I - The ppm is a measure used for substances that are present only in trace amounts.
II - The ppm can be used to calculate the concentration of substances incorporated in different stages of food processing.
III - The ppm is calculated by dividing the weight of the substance by the weight of the solution and multiplying by one million.
a) Only statement I is correct.
b) Only statement II is correct.
c) Only statement III is correct.
d) Statements I and II are correct.
e) Statements II and III are correct.
💡 1 Resposta
Ed 
A fórmula para calcular partes por milhão (ppm) é dividir a massa do soluto pela massa total da solução e multiplicar por um milhão. Portanto, a afirmação III está correta. A resposta correta é a alternativa c).
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