Type the correct answer in the box. express your answer to three significant figures. this balanced equation shows the reaction of sodium hydroxide and sulfuric acid: 2naoh + h2so4 → na2so4 + 2h2o. in a laboratory experiment, a student mixes 355 grams of sulfuric acid with an excess of sodium hydroxide. what is the theoretical mass of sodium sulfate produced? refer to the periodic table and the polyatomic ion resource. the theoretical mass of sodium sulfate is grams.

514.5 g.

Explanation:

n of H₂SO₄ = mass/molar mass = (355.0 g)/(98.0 g/mol) = 3.622 mol.

Using cross multiplication:

∵ 1.0 mol H₂SO₄ produces → 1.0 mol of Na₂SO₄.

∴ 3.622 mol H₂SO₄ produces → 3.662 mol of Na₂SO₄.

∴ mass of Na₂SO₄ =  no. of moles x molar mass = (3.662 mol)(142.04 g/mol) = 514.5 g.

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: