Question

a solution of HNo3 is 5%(w/w)%.find the mass of HNo3 present in 100ml of solution and density of solution is 1.4gm/ml?
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Answer 1

Answer:

Here is your answer...

Explanation:

Given that,

A solution of HNo3 is 5%.

Let the volume of solution is x.

We know that,

Density = mass/volume

Put the value into the formula

1.4 = 100/x

x = 100/1.4

x = 71.4ml

We need to calculate the mass of HNO₃ present in 100 mlUsing formula for mass of HNO₃

For 71.4 ml = 5g of HNO₃

100ml = (100 x 5)/71.4

100ml = 7.00g

Hence, Mass of HNO₃ present in 100 ml of solution is 7g.

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