Question

During an experiment the students were asked to prepare a 5% (mass/mass)
solution of potassium chloride in water. Which of the following correctly
represents the composition of the solution?

A. 5 g of KCl + 100 g of water
B. 5 g of KCl + 95 g of water
C. 0.5 g of KCl + 99.95 g of water
D. 0.05 g of KCl + 100 g of water

Answer 1

Answer:

(C) option is correct answer

Answer 2

(A). 5 g of KCl + 100 g of water

Explanation:

• After nearly 20 years in the market, potassium chloride has earned its place as a significant water softener regenerant. It adds healthful potassium to the homeowner's drinking water and is gentler to the environment than sodium chloride.
• Potassium chloride is a medicine used to prevent or treat low potassium levels in the body. Potassium is a mineral that your body needs for the proper functioning of the heart, muscles, kidneys, nerves, and digestive system. Certain diseases, illnesses, and drugs can remove potassium from the body

mass of $Nacl$ = $5/100$

mass of solution = $(100+5)g$

mass percentage = $5+100g$

In the experiment, students were asked to prepare a 5% (mass/mass)

solution of potassium chloride in water mass percentage = $5+100g$