Question

3 the table shows the amount of nahco₃ a chemist dissolves in water to make a solution. nahco₃ (grams) | water (liters) 0.25 | 1.0 0.875 | 3.5 1.2 | 4.8 1.35 | 5.4 based on the information in the table, how many grams of nahco₃ should the chemist mix with 7 liters of water? a 2.25 b 2.5 c 1.5 d 1.75

Explanation:

Step1: Find the ratio of solute to water

Check the ratio for each row:
$\frac{0.25}{1.0} = 0.25$, $\frac{0.875}{3.5} = 0.25$, $\frac{1.2}{4.8} = 0.25$, $\frac{1.35}{5.4} = 0.25$

Step2: Calculate grams for 7 liters

Multiply the ratio by 7 liters:
$\text{Grams of NaHCO}_3 = 0.25 \times 7$

Answer:

D 1.75