Question

The latter example works because 100 cg is equivalent to 1 g. Complete the following statements regarding how many grams of KI are found in either 100 g or 1 kg of a 2.5% solution of KI. Match the values in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

Answer 1

Answer: The mass of KI present in 1 kg of solution is 25 grams.

Step-by-step explanation:

We are given:

2.5 % (w/w) of KI solution.

This means that 2.5 grams of KI is present in 100 grams of solution.

We need to find the mass of KI present in 1 kg of solution, we use the conversion factor:

1 kg = 1000 g

Calculating the mass of KI in 1 kg or 1000 g of solution by unitary method:

In 100 grams of solution, mass of KI present is 2.5 grams

So, in 1000 grams of solution, mass of KI present will be =
`(2.5)/(100)* 1000=25g`

Hence, the mass of KI present in 1 kg of solution is 25 grams.