Question

How many cubic centimeters of water must be evaporated from 100 cc of a
40% salt solution to produce a 50% salt solution?

Pls help me with full solution :(

Answer 1

Answer:

answer 1000 cubic centimeter

Step-by-step explanation:

$40\% + 50\% = 90\% \\ \\ 100\% - 90\% = 10\% \\ 10\% = 100cc \\ 100\% = 100 \times 10 \\ = 1000$

Answer 2

Answer:

hey mate

Fehling’s test consists of a solution that is usually prepared fresh in laboratories. Initially, the solution exists in the form of two separate solutions which are labelled as Fehling’s A and Fehling’s B. Fehling’s A is a solution containing copper(II) sulphate, which is blue. Fehling’s B is a clear liquid consisting of potassium sodium tartrate (Rochelle salt) and a strong alkali, usually sodium hydroxide. During the test solutions A and B are prepared individually and stored.

Step-by-step explanation:

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