Question

A chemist has 51kg of calcium10chloride. If she uses 0.15 kg of thecompound each time she performs anexperiment, for how many experiments willher supply last?

Answer 1

Number of experiments is 34.

Step-by-step explanation:

Given;

The total mass is, T = 5 1/10 kg.

Quantity required per experiment is, m = 0.15 kg.

The objective is to find the number experiments that can be performed with the total mass.

Consider the number of experiements as x.

Then, the above situation can be represented as,

`\begin{gathered} \text{Total mass=Quantity per experiment}* Number\text{ of experiments} \\ T=m* x \end{gathered}`

Now, substitute the given values in the above equation.

`\begin{gathered} 5(1)/(10)=0.15* x \\ (50+1)/(10)=0.15* x \\ (51)/(10)=0.15* x \\ x=(51)/(10\cdot0.15) \\ x=(51)/(1.5) \\ x=34 \end{gathered}`

Hence, the the number experiments that can be performed with the total mass is 34.