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Galina-37 [17]
3 years ago
13

If 100.0 mL of 0.105 M Na 2 SO 4 are added to 100.0 mL of 0.985 M Pb ( NO 3 ) 2 , how many grams of PbSO 4 can be produced? Na 2

SO 4 ( aq ) + Pb ( NO 3 ) 2 ( aq ) ⟶ 2 NaNO 3 ( aq ) + PbSO 4 ( s )
Chemistry
1 answer:
Andrew [12]3 years ago
8 0

Answer:

3.18 g of lead sulfate is produced in this reaction

Explanation:

The reaction is this one:

Na₂SO₄ (aq) + Pb(NO₃)₂ (aq)  →  2 NaNO₃ (aq) + PbSO₄ (s)

Let's determine the moles of reactants, to find out which is the limiting.

Molarity . volume = Mol

0.105 m/L . 0.100L = 0.0105 moles of sulfate

0.985 m/L . 0.100L = 0.0985 moles of nitrate

Ratio is 1:1, so 1 mol of sulfate needs 1 mol of nitrate, to react.

0.0985 moles of nitrate need 0.0985 moles of sulfate to react, but I only have 0.0105 moles so the sulfate is my limiting reactant.

Ratio is again 1:1, so 0.0105 moles of sulfate make 0.0105 moles of lead sulfate.

Mol . molar mass = mass → 0.0105 mol . 303.26 g/m = 3.18 g

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Answer:

D

Explanation:

If the pressure remains constant then the temperature and Volume are all that you have to consider.

Givens

T1 = 19oC = 19 + 273 = 292o K

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Formula

V1/T1 = V2/T2

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Solution.

The solves rather neatly.  Multiplly both sides by 333

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