Question

question 3. in a reaction, a student needs 750 grams of sodium chloride. the balance available in the lab measures in kilograms. how many kilograms of sodium chloride should the student weigh out? do not forget the unit(s)!
answer:

Explanation:

Step1: Recall the conversion factor

We know that \(1\) kilogram \( = 1000\) grams. So the conversion factor is \(\frac{1\space kg}{1000\space g}\).

Step2: Set up the conversion

We have \(m = 750\space g\). To convert grams to kilograms, we multiply by the conversion factor: \(m=750\space g\times\frac{1\space kg}{1000\space g}\).

Step3: Calculate the result

\(750\times\frac{1}{1000}=\frac{750}{1000}= 0.75\)

Answer:

\(0.75\space kg\)