While performing the experiment with raisins to determine the percentage of water absorbed by them, a student made following measurements:

Mass of water in the beaker = 40 g

Mass of raisins before soaking = 5 g

Mass of raisins after soaking for 2 hours = 8 g

Mass of water left in the beaker after the experiment = 35 g
The percentage of water absorbed by raisins is:
$begin inline style fraction numerator 40 straight g space minus space 35 straight g over denominator 35 straight g end fraction end style space cross times space 100$
$fraction numerator 40 straight g space minus space 35 straight g over denominator 40 straight g end fraction space cross times space 100$
$fraction numerator 8 straight g space minus space 5 straight g over denominator 8 straight g end fraction space cross times space 100$
$fraction numerator 8 straight g space minus space 5 straight g over denominator 5 straight g end fraction space cross times space 100$

Solution

fraction numerator 8 straight g space minus space 5 straight g over denominator 5 straight g end fraction space cross times space 100

The percentage of water absorbed by raisins is calculated by using the formula
$fraction numerator straight W subscript 2 space minus straight W subscript 1 over denominator straight W subscript 1 end fraction space cross times space 100$

where, W₂ is the weight of wet resin and W₁ is the weight of dry resin.

Some More Questions From Life Processes Chapter

What are outside raw materials used for by an organism?

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Life Processes

Some More Questions From Life Processes Chapter

What are outside raw materials used for by an organism?

What processes would you consider essential for maintaining life?

From where do you get the energy to do work from?

Name the main modes of nutrition.

What are the modes of nutrition other than autotrophic nutrition?

What are the raw materials for photosynthesis?

What is the primary source of energy for all living beings?

Are there organisms that do not require water for photosynthesis?

What is holozoic nutrition?

What are enzymes?

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