Question

A children's liquid cold medicine has a specific gravity of 1.23. If a child is to take 1.5 tsp in a dose, what is the mass (in grams) of the cold medicine?

Answer 1

1 tsp contains medicine = 5 mL

So,1.5 tsp contains medicine = 1.5 tsp x 5ml

= 7.5 ml

Specific gravity = 1.23 g ml⁻¹

Mass of the cold medicine= 7.5 × 1.23 g

= 9.2 g

So, mass of the cold medicine was found to be 9.2 g.

So, a children's liquid cold medicine that has a specific gravity of 1.23. If a child take 1.5 tsp in a dose, the mass (in grams) of the cold medicine was found to be 9.2 g .

Answer 2

Assume 1 tsp is approximately can hold 5 mL liquid.

Given the dose of medicine = 1.5 tsp

Converting 1.5 tsp to mL:

`1.5 tsp * (5 mL)/(1 tsp)` = 7.5 mL

Given the specific gravity of the medicine = 1.23

That means density of the medicine with respect to water will be 1.23

As the density of water is 1 g/mL

We can take density of the medicine to be 1.23 g/mL

Calculating the mass of medicine in grams:

`7.5 mL * (1.23 g)/(mL) =9.225 g`

9.225 g medicine is present in one dose.