How much 90% alcohol will be required to make 600 ml of 60% alcohol
Answers
Explanation:
हाउ मच 90% एल्कोहल विल बे रिक्वायर्ड टू मेक 60 एमएल आफ 60% एल्कोहल
600ml of 60% v/v alcohol will be prepared by adding 450ml of 70% v/v alcohol and 150ml of 30% v/v alcohol.
Given:
Quantity of 60% v/v alcohol=600 ml
To find:
The quantity of 70% and 30% v/v alcohols
Solution:
We know that the quantity of each alcohol can be obtained by using the concept of alligation.
The ratio of the quantities of the 70% v/v alcohol and 30% v/v alcohol to make 60 ml of 60% v/v alcohol is as follows-
The ratio of 30% v/v alcohol to 70% v/v alcohol=(70-60):(60-30)
=10: 30
=1: 3
Now, the total quantity of 60% v/v soolution=600ml
Out of this 600ml, the quantity of 30% v/v alcohol=1/4×600
=150 ml
The quantity of 70% v/v alcohol=3/4×600
=450 ml
Therefore, 600ml of 60% v/v alcohol will be prepared by adding 450ml
of 70% v/v alcohol and 150ml of 30% v/v alcohol.
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