Question

A 55.0mL sample of 0.102M potassium sulfate solution is mixed with 35.0mL of a 0.114M lead(II) acetate solution and the precipitation reaction shown here occurs:

K2SO4(aq)+Pb(C2H3O2)2(aq)=2KC2H3O2(aq)+PbSO4(s).

Determine the theoretical yield of PbSO4 in grams.

Step 1

Given,

Molarity of potassium sulfate solution = 0.102 M = 0.102 mol/L

Volume of potassium sulfate solution = 55.0 mL = 0.055 L (1mL = 0.001 L)

Molarity of lead(II) acetate solution = 0.114 M = 0.114 mol/L

Volume of lead(II) acetate solution = 35.0 mL = 0.035 L (1mL = 0.001 L)

Moles of potassium sulfate, K_{2}SO_{4} and lead(II) acetate, Pb(C_{2}H_{3}O_{2})_{2} can be calculated as:

Step 2

The balanced reaction is given as:

K_{2}SO_{4 }(aq) + Pb(C_{2}H_{3}O_{2})_{2 }(aq) → 2 KC_{2}H_{3}O_{2 }(aq) + PbSO_{4} (s)

Stoichiometric molar ratio of K_{2}SO_{4 } : Pb(C_{2}H_{3}O_{2})_{2 } = 1 : 1

Actual molar ratio of K_{2}SO_{4} : Pb(C_{2}H_{3}O_{2})_{2 } = 0.00561 : 0.00399 = 1.4 : 1

Therefore, K_{2}SO_{4 }is in excess, so the limiting reagent is Pb(C_{2}H_{3}O_{2})_{2}

Theoretical mass of PbSO_{4} produced can be calculated as:

Step 3

Mass of PbSO4 produced can be...

Tagged in

Q: I just need some help understanding how to tell the different between the size, shape , and energy o...

A: In quantum mechanics and atomic theory, the term atomic orbital refers to a mathematical function wh...

Q: What is the formula for ammonium nitrate?

A: Ammonium is a positive ion which contains 1 N-atom and 4 H-atom, written as NH4+Nitrate is a negativ...

Q: Which type of noncovalent interaction would predominate between the R-groups of tryptophan and pheny...

A: Non-covalent interaction may be defined as the interaction in which there is no sharing of electrons...

Q: What amout (moles) is represented in 20.0mg caffeine C8 H10 N4 O2

A: The number of moles is the ratio of given mass by molecular mass. It is represented by equation (1),...

Q: What is the enthalpy change when 1.00 mol of carbon dioxide (CO2) is formed? C12H22O11(s) + 12 O2...

A: The reaction is given as,

Q: A and X are different elements with different electronegativities. What best describes the polarity...

A: Click to see the answer

Q: Thinking about atomic structure, explain why electron affinity increases as you move left to right a...

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles ...

Q: When a sample of oxalic acid (H2C2O4), which is a diprotic acid (both H-atoms are acidic), is titrat...

A: Given,0.250 M KOH solution.24.66 ml KOH soltion for neutralisation.

Q: An unknown sphere that weights 5g is carefully placed in a graduated cylinder with 20 mL of water. T...

A: On the addition of sphere, the volume of water increases. The volume of water increases from 20 mL t...

Sorry about that. What wasn’t helpful?