Respuesta :
Answer:
Mass of sodium hydroxide needed = 28.2 g
Explanation:
Given data:
Mass of sodium hydroxide = 80 g
Mass of sodium sulfate produced = 142 g
Mass of sodium hydroxide needed = ?
Mass of sodium sulfate produced = 50 g
Solution:
Mass of sodium sulfate produced / Mass of sodium hydroxide = Mass of sodium sulfate produced / x
142 g/ 80 g = 50 g / x
x = 50 g × 80 g / 142 g
x =4000 g/ 142
x = 28.2 g
If 80 g of sodium hydroxide reacts with sulfuric acid to produce 142 g of sodium sulfate, the mass of sodium hydroxide that would be needed to make 50 g of sodium sulfate would be 28.17 g
80 g sodium hydroxide produced 142 g sodium sulfate
The mass (in g) of sodium hydroxide that would produce 50 g of sodium sulfate can be calculated as:
80 x 50/142
= 28.17 g
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