Question

If Dr. I.M. Smart mixes 50ml of a 20% acid in water solution with 30ml of acid, what is the quantity and concentration of the final solution?

Answer 1

Answer:

80ml of the solution with a 50% acid concentration.

Step-by-step explanation:

Amount of acid in the water solution:

50ml * 20%= 10 ml

∴There is 10ml of acid in the solution.

Final amount of liquid:

50ml + 30ml = 80ml

Final amount of Acid:

10ml + 30ml = 40 ml

Concentration of Acid in Solution

40ml / 80ml = 0.5 = 50%

Answer 2

The Dr. I.M. Smart mixes 50ml of a 20% acid in water solution with 30ml of acid, the quantity and concentration is the 80ml of the solution with a 50% acid concentration.

We have given that, Dr. I.M. Smart mixes 50ml of a 20% acid in water solution with 30ml of acid,

We have to calculate the quantity and concentration of the final solution

What is the amount of acid in the water solution?

We have the amount of acid in solution is,

50ml * 20%

$=50\times\frac{20}{100}$

$=50(0.20)\\=10ml$

There is 10ml of acid in the solution.

Final amount of liquid

$50ml + 30ml = 80ml$

The final amount of acid

$10ml + 30ml = 40 ml$

Concentration of acid in solution

$40ml / 80ml = 4/8=1/2=0.5 = 50%$

Therefore,the Dr. I.M. Smart mixes 50ml of a 20% acid in water solution with 30ml of acid, the quantity and concentration is the 80ml of the solution with a 50% acid concentration.

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