How Many Milliliters of 3.0m Naoh Are Required to React With 0.5g of Cu+2 to Form Cu(Oh)2?

Acids/Bases/Salts -
Calculations
(includes Balancing Redox)

Examples of
Multiple Choice Questions

1.: How many grams of Ca(OH)₂ are contained in 1500 mL of 0.0250 M Ca(OH)₂ solution?; (a) 3.17 g; (b) 2.78 g; (c) 1.85 g; (d) 2.34 g; (e) 4.25 g
2.: What volume of 12.6 M HCl must be added to enough water to prepare 5.00 liters of 3.00 M HCl?; (a) 1.19 L; (b) 21.0 L; (c) 0.840 L; (d) 7.56 L; (e) 2.14 L
3.: What is the molarity of the salt produced in the reaction of 200 mL of 0.100 M HCl with 100 mL of 0.500 M KOH?; (a) 0.0325 M; (b) 0.0472 M; (c) 0.0667 M; (d) 0.0864 M; (e) 0.0935 M
4.: What volume of 0.50 M KOH would be required to neutralize completely 500 mL of 0.25 M H₃PO₄ solution?; (a) 2.5 x 10² mL; (b) 1.4 x 10³ mL; (c) 83 mL; (d) 7.5 x 10² mL; (e) 5.2 x 10² mL
5.: A 0.6745 gram sample of KHP reacts with 41.75 mL of KOH solution for complete neutralization. What is the molarity of the KOH solution? (Molecular weight of KHP = 204 g/mol. KHP has one acidic hydrogen.); (a) 0.158 M; (b) 0.099 M; (c) 0.139 M; (d) 0.079 M; (e) 0.061 M
6.: How many equivalents of phosphoric acid are contained in 300 mL of 4.00 M phosphoric acid? (Assume the acid is to be completely neutralized by a base.); (a) 0.600 eq; (b) 1.20 eq; (c) 2.40 eq; (d) 3.60 eq; (e) 4.80 eq
7.: Calculate the normality of a solution that contains 4.5 g of (COOH)₂ in 3000 mL of solution? (Assume the (COOH)₂ is to be completely neutralized in an acid-base reaction.); (a) 0.033 N; (b) 0.045 N; (c) 0.066 N; (d) 0.090 N; (e) 0.12 N
8.: What volume of 0.100 N HNO₃ is required to neutralize 50.0 mL of a 0.150 N solution of Ba(OH)₂?; (a) 50.0 mL; (b) 75.0 mL; (c) 100. mL; (d) 125 mL; (e) 150. mL
9.: How many grams of NaOH would be required to neutralize all the acid in 75.0 mL of 0.0900 N H₂SO₄?; (a) 0.540 g; (b) 0.270 g; (c) 1.32 g; (d) 0.660 g; (e) 0.859 g
10.: What is the oxidation number for carbon in CaC₂O₄?; (a) 0; (b) +2; (c) +3; (d) +4; (e) +6
11.: Balance the molecular equation for the following redox reaction. What is the sum of the coefficients? Don't forget coefficients of one. Use the smallest whole number coefficients possible.
H₂SO₄(aq) + HI(aq) I₂(s) + SO₂(g); (a) 7; (b) 9; (c) 11; (d) 13; (e) 5
12.: For the reaction between permanganate ion and sufite ion in basic solution, the unbalanced equation is:
MnO₄ ^- + SO₃ ^2- MnO₂ + SO₄ ^2-
When this equation is balanced using the smallest whole number coefficients possible, the number of OH^- ions is; (a) two on the right.; (b) two on the left.; (c) three on the right.; (d) four on the right.; (e) four on the left.
13.: Balance the following redox equation in acidic solution with the smallest whole number coefficients possible. What is the sum of all the coefficients? (Do not forget coefficients of one.)
Cu + SO₄ ^2- Cu²⁺ + SO₂ (in acidic solution); (a) 9; (b) 10; (c) 11; (d) 12; (e) 13
14.: When the following equation is balanced with the smallest possible set of integers, what is the sum of all the coefficients? (Do not forget coefficients of one.)
Cr₂O₇ ^2- + H₂S Cr³⁺ + S (in acidic solution); (a) 13; (b) 24; (c) 19; (d) 7; (e) 29
15.: When the following equation is balanced with the smallest possible set of integers, what is the sum of all the coefficients? (Do not forget coefficients of one.)
MnO₄ ^- + Se^2- MnO₂ + Se (in basic solution); (a) 20; (b) 22; (c) 24; (d) 26; (e) 28
16.: Consider the following unbalanced equation in acidic solution:
NaClO₃ + H₂O + I₂ HIO₃ + NaCl A 25.0 mL sample of 0.0833 M NaClO₃ reacted with 30.0 mL of an aqueous solution of I₂. How many grams of I₂ were contained in the I₂ solution?; (a) 0.264 g; (b) 0.397 g; (c) 0.236 g; (d) 0.159 g; (e) 0.317 g
17.: Consider the following unbalanced net ionic equation:
NO₂ ^- + MnO₄ ^- NO₃ ^- + Mn²⁺ (in acidic solution) What is the molarity of a sodium nitrite, NaNO₂, solution if 30.0 mL of it just reacts with 0.238 grams of KMnO₄?; (a) 0.410 M; (b) 0.126 M; (c) 0.0502 M; (d) 0.251 M; (e) 0.0316 M
18.: What is the equivalent weight (in grams) of copper(II) nitrate for use in a reaction involving the conversion of copper(II) to copper metal?; (a) 46.9 g/eq; (b) 93.8 g/eq; (c) 187.6 g/eq; (d) 375.2 g/eq; (e) 562.8 g/eq
19.: What is the normality of a K₂Cr₂O₇ solution prepared by dissolving 5.00 g of K₂Cr₂O₇ in 200 mL of solution, which will be used in the following unbalanced reaction? Cr₂O₇ ^2- + SO₃ ^2- Cr³⁺ + SO₄ ^2- (in acidic solution); (a) 0.733 N; (b) 0.226 N; (c) 0.510 N; (d) 0.441 N; (e) 0.810 N
20.: What mass of KMnO₄ must be dissolved to prepare 1.25 L of 0.110 N KMnO₄ solution? It is used in the reaction in which MnO₄ ^- ions oxidize Fe²⁺ into Fe³⁺ ions and are reduced to Mn²⁺ ions under acidic conditions?; (a) 4.34 g; (b) 23.8 g; (c) 115 g; (d) 19.1 g; (e) 70.6 g
21.: A 0.250 M solution of Na₂C₂O₄ is to be used in a reaction in which the C₂O₄ ^2- will be oxidized to CO₂. What is the normality of this Na₂C₂O₄ solution?; (a) 0.250 N; (b) 1.00 N; (c) 0.125 N; (d) 0.0625 N; (e) 0.500 N
22.: What volume of a 0.150 N KI solution is required to react in basic solution with 34.1 mL of a 0.216 N solution of KMnO₄? The products in the reaction include MnO₂ and IO₃ ^-.; (a) 25.4 mL; (b) 37.9 mL; (c) 12.6 mL; (d) 98.2 mL; (e) 49.1 mL
23.: Calculate the normality of a NaClO solution if 35.00 mL of the solution is required to react with 0.615 g of Zn according to the following unbalanced equation: Zn + ClO^- Zn(OH)₂ + Cl^- (in basic solution); (a) 0.537 N; (b) 0.275 N; (c) 0.108 N; (d) 0.366 N; (e) 0.791 N
24.: A solution of nitrous acid was standardized in a reaction where HNO₂ NO₃ ^- and its concentration was determined to be 0.100 N nitrous acid. What volume of this 0.100 N nitrous acid solution would be required to oxidation of 0.200 g of CoCl₂ to CoCl₃ according to the following net ionic equation? Co²⁺ + HNO₂ Co³⁺ + NO (in acidic solution); (a) 33.9 mL; (b) 15.4 mL; (c) 7.70 mL; (d) 67.8 mL; (e) 30.8 mL
25.: What is the sum of all coefficients when the following net ionic equation is balanced using the smallest whole number coefficients possible? Do not forget coefficients of one. MnO₄ ^- + Mn²⁺ MnO₂ (in basic solution); (a) 19; (b) 16; (c) 13; (d) 11; (e) 7

Answers:

1. (b) 2. (a) 3. (c) 4. (d) 5. (d) 6. (d) 7. (a) 8. (b) 9. (b) 10. (c) 11. (a) 12. (a) 13. (b) 14. (b) 15. (b) 16. (e) 17. (b) 18. (b) 19. (c) 20. (a) 21. (e) 22. (e) 23. (a) 24. (e) 25. (b)

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How Many Milliliters of 3.0m Naoh Are Required to React With 0.5g of Cu+2 to Form Cu(Oh)2?

Source: https://www.chem.tamu.edu/class/fyp/mcquest/ch11.html

Herington Dayinceds

How Many Milliliters of 3.0m Naoh Are Required to React With 0.5g of Cu+2 to Form Cu(Oh)2?

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