Question

kclo3
how many grams of kclo3 will dissolve in:
note: remember that the solubility curve graph is designed using 100 g of water.
15 fill in the blank 1 point
400 g of water at 20°c
answer
60 g 35 g 28 g
previous

Explanation:

Step1: Determine solubility at 20°C

From solubility - curve knowledge (not shown here), assume solubility of KClO₃ in 100 g of water at 20°C is 7 g (a made - up value for illustration as the actual curve is not provided).

Step2: Set up proportion

Let x be the mass of KClO₃ that dissolves in 400 g of water. The proportion is $\frac{x}{400}=\frac{7}{100}$.

Step3: Solve for x

Cross - multiply: $100x = 400\times7$, so $x=\frac{400\times7}{100}=28$ g.

Answer:

28 g