3 years ago

If D+2 would react with E-", what do you predict to be the formula?

Chemistry

1 answer:

GuDViN [60]3 years ago

6 0

Answer:DE2

Explanation:

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2 years ago

Calculate the mass percentage of Na2SO4 in a solution containing 10.9 g Na2SO4 in 482 g water.

boyakko [2]

Answer:

The answer to your question is 2.21 %

Explanation:

Data

mass of Na₂SO₄ = 10.9 g

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Formula

Percent by mass = $\frac{mass of solute}{total mass}$ x 100

Substitution

$Percent by mass = \frac{10.9}{10.9 + 482}$ x 100

Simplification and result

$Percent by mass = \frac{10.9}{492.9}$ x 100

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3 years ago

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