Question

Calculate the weight of co deposited,
when a Cullent of 0.2 Ampere il passed
for to minutes through a solution
of cusoy. [Eco of w=0.00032]​

Answer 1

Explanation:

$25$

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Answer 2

40 litres => milk = 30 water = 10

Let us add x litres water

New volume = 40 + x

New volume of water in new mixture

= 10 + x

We know, 10 + x = 30% of (40 + x)

=> 10 + x = 3/10(40 + x)

=> 100 + 10x = 120 + 3x

=> 7x = 20

=> x = 20/7 litres