What masses of salt and water will be required to prepare 500 g of its 15% solution?

Given: m (salt solution) – 500 g
ω (salt solution) – 15%

find: m (salt), m (water)

ω = m (salt) / m (salt solution) * 100%

15% = x / 500 * 100%

X = 15 * 500/100

X = 75 g

m (salt) = 75 g

m (water) = 500 g – 75 g = 425 g

Answer: m (salt) = 75 g

m (water) = 425 g



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