Homework Answers
The correct answer is option 'a' that is lithium hydroxide. Option c is incorrect as it contains Barium and the name given is Bromine. Similarly, option 'd' is also incorrect as it says oxyhydride although the molecule represented contains hydroxide anion which is OH-. Option 'e' is also incorrect as it says nitro group which is not present in the molecule nitro group is NO2- while the molecule has NH4 group as a cationic part which is called ammonium. Now the confused part is the option 'b' which says Magenisum(II) hydroxide . As magnesium does not have a variable valency we need not to write two in roman as we do in case of iron.
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Question 11 4 pts 11. Which base is correctly named? a. LIOH lithium hydroxide b. Mg(OH)2...
List the numbers of the acids below that are polyprotic? 1. H2SO4 Ammonium sulfate 2. Ba(OH)2...
List the numbers of the acids below that are polyprotic? 1. H2SO4 Ammonium sulfate 2. Ba(OH)2 Barium hydroxide 3. Ca(OH)2 Calcium hydroxide 4. HNO3 Nitric acid 5. HBrO3 Bromic acid 6. HCIO Hypochlorous acid 7. H2Cr2O7 Dichromic acid 8. HMnO4 Permanganic acid 9. HC2H2O2 acetic acid 10. H3PO4 Phosphoric acid 11. LiOH Lithium hydroxide Nitrous acid HNO2 13. potassium hydroxide KOH 14. magnesium hydroxide Mg(OH)2 15. sulfurous acid H2SO3 16. phosphorous acid H3PO3 17. perbromic acid HBrO4 18. hydrofluoric acid...
16. Question 4 (6 Points): If only 0.160 g of Calcium hydroxide, Ca(OH), dissolves in 0.100...
16. Question 4 (6 Points): If only 0.160 g of Calcium hydroxide, Ca(OH), dissolves in 0.100 L of water, what is the solubility product constant (K.) value for calcium hydroxide at given temperature? Remember that a solid calcium hydroxide (strong base) will reach equilibrium with its solubility products (Ca + 2 OH in water according to Ca(OH)2(:) - Ca (aq) + 2 OH(aq)
D. d Which nucleotides are named correctly? CH3 HN HN N 00 8-= -OH CO -OHCHIN...
D. d Which nucleotides are named correctly? CH3 HN HN N 00 8-= -OH CO -OHCHIN H OH OH OH OH 5-TMP I СН3 HT 3-GMP II NH HOH.C N oe O-D-OH2C oo 0 OH 20-P=0 O CO-P=0 OH OH eo 5-GDP IV 3-TDP MI Choose one answer A. I,III B. II, III C. III, IV D. II, IV 6 Which statement about the base mole-percent composition of DNA is true? 30
Part 2 (acid/base) 4. Consider the following questions about acids and bases. a) Which of these...
Part 2 (acid/base) 4. Consider the following questions about acids and bases. a) Which of these solutions will have the highest concentration of OH ions? Which will have the lowest? i) 0.60 M CH3NH2 ii) 0.25 M Sr(OH) iii) 0.35 M LiOH) b) Predict the product of the following reaction. Make sure the reaction is balanced. Na)+Ba(OH) (ag) c) Write a net ionic equation for b) d) Identify the acid and the base in the following reaction (remember the Bronsted...
Which of the following is a weak base in aqueous solution? A. H2CO3 B. Al(OH)3 C....
Which of the following is a weak base in aqueous solution? A. H2CO3 B. Al(OH)3 C. HBr D. LiOH E. Ca(OH)2
Sodium hydroxide is a strong base and ammonium hydroxide is a weak base. Which of the...
Sodium hydroxide is a strong base and ammonium hydroxide is a weak base. Which of the following correctly portrays aqueous solutions of the two bases? Select one: A. NaOH(aq) and NH4+(aq) + OH-(aq) B. Na+(aq) + OH-(aq) and NH4OH(aq) C. Na+(aq) + OH-(aq) and NH4+(aq) + OH-(aq) D. NaOH(aq) and NH4OH(aq) E. none of the above
??? Write the formula for each of the following: a. lithium hydroxide b. iron(III) hydroxide c....
???
Write the formula for each of the following: a. lithium hydroxide b. iron(III) hydroxide c. aluminum hydroxide d. chlorous acid e. strontium hydroxide f lead(II) hydroxide g. phosphorous acid h. ammonia 6.1 Calculate the pH of the following solutions: a. [H3O+] = 5.6 x 103 6.2 b. [H30']-3.8 x104 c. [H3O] 2.7 x 10-5 d. [H3O']- 1.0 x 109 6.3 For each of the following strong base solutions, determine (OH ], (10], and pri. a. 6.5 x 10 M...
Calcium hydroxide, Ca(OH)2, is sparingly soluble in water (Ksp -4.0 x 106). In order to dissolve...
Calcium hydroxide, Ca(OH)2, is sparingly soluble in water (Ksp -4.0 x 106). In order to dissolve 74.1 mg of Ca(OH)2(s) , the minimum volume (mL) of water needed is O A. 100 O B. 13. 10 ° C. 630 O D. 63 O E. 0.063
D) Pop 6. Iron (II) hydroxide is a slightly soluble base. In which of the following...
D) Pop 6. Iron (II) hydroxide is a slightly soluble base. In which of the following would Fe(OH)2 be most soluble? (It is not necessary to know the Ksp for Fe(OH)2. Give your reasoning after your answer. A) 0.1M HCI B) 0.1M KOH C) 0.1M Ca(OH)2 D)O.1M FeCl2 E) NaCl
1. Using Table 38.3 in the Voyce text, calculate the solubility of Manganese(II) hydroxide at 25oC...
1.
Using Table 38.3 in the Voyce text, calculate the solubility of
Manganese(II) hydroxide at 25oC
A.
5.7 x 10-5
B.
3.6 x 10-5
C.
4.4 x 10-7
2.
The pH of a 0.0147M KCN solution is:
A.
10.7
B.
5.52
C.
3.3
D.
8.48
3.
The pH of a buffer solution composed of 0.020M HCHO2
and 0.014M NaCHO2 is:
A.
3.59
B.
3.74
C.
3.90
4.
When 400ml of a 0.01M SnCl2 solution is mixed with a
300ml if...
List the numbers of the acids below that are polyprotic? 1. H2SO4 Ammonium sulfate 2. Ba(OH)2 Barium hydroxide 3. Ca(OH)2 Calcium hydroxide 4. HNO3 Nitric acid 5. HBrO3 Bromic acid 6. HCIO Hypochlorous acid 7. H2Cr2O7 Dichromic acid 8. HMnO4 Permanganic acid 9. HC2H2O2 acetic acid 10. H3PO4 Phosphoric acid 11. LiOH Lithium hydroxide Nitrous acid HNO2 13. potassium hydroxide KOH 14. magnesium hydroxide Mg(OH)2 15. sulfurous acid H2SO3 16. phosphorous acid H3PO3 17. perbromic acid HBrO4 18. hydrofluoric acid...
16. Question 4 (6 Points): If only 0.160 g of Calcium hydroxide, Ca(OH), dissolves in 0.100 L of water, what is the solubility product constant (K.) value for calcium hydroxide at given temperature? Remember that a solid calcium hydroxide (strong base) will reach equilibrium with its solubility products (Ca + 2 OH in water according to Ca(OH)2(:) - Ca (aq) + 2 OH(aq)
D. d Which nucleotides are named correctly? CH3 HN HN N 00 8-= -OH CO -OHCHIN H OH OH OH OH 5-TMP I СН3 HT 3-GMP II NH HOH.C N oe O-D-OH2C oo 0 OH 20-P=0 O CO-P=0 OH OH eo 5-GDP IV 3-TDP MI Choose one answer A. I,III B. II, III C. III, IV D. II, IV 6 Which statement about the base mole-percent composition of DNA is true? 30
Part 2 (acid/base) 4. Consider the following questions about acids and bases. a) Which of these solutions will have the highest concentration of OH ions? Which will have the lowest? i) 0.60 M CH3NH2 ii) 0.25 M Sr(OH) iii) 0.35 M LiOH) b) Predict the product of the following reaction. Make sure the reaction is balanced. Na)+Ba(OH) (ag) c) Write a net ionic equation for b) d) Identify the acid and the base in the following reaction (remember the Bronsted...
???
Write the formula for each of the following: a. lithium hydroxide b. iron(III) hydroxide c. aluminum hydroxide d. chlorous acid e. strontium hydroxide f lead(II) hydroxide g. phosphorous acid h. ammonia 6.1 Calculate the pH of the following solutions: a. [H3O+] = 5.6 x 103 6.2 b. [H30']-3.8 x104 c. [H3O] 2.7 x 10-5 d. [H3O']- 1.0 x 109 6.3 For each of the following strong base solutions, determine (OH ], (10], and pri. a. 6.5 x 10 M...
Calcium hydroxide, Ca(OH)2, is sparingly soluble in water (Ksp -4.0 x 106). In order to dissolve 74.1 mg of Ca(OH)2(s) , the minimum volume (mL) of water needed is O A. 100 O B. 13. 10 ° C. 630 O D. 63 O E. 0.063
D) Pop 6. Iron (II) hydroxide is a slightly soluble base. In which of the following would Fe(OH)2 be most soluble? (It is not necessary to know the Ksp for Fe(OH)2. Give your reasoning after your answer. A) 0.1M HCI B) 0.1M KOH C) 0.1M Ca(OH)2 D)O.1M FeCl2 E) NaCl
1.
Using Table 38.3 in the Voyce text, calculate the solubility of
Manganese(II) hydroxide at 25oC
A.
5.7 x 10-5
B.
3.6 x 10-5
C.
4.4 x 10-7
2.
The pH of a 0.0147M KCN solution is:
A.
10.7
B.
5.52
C.
3.3
D.
8.48
3.
The pH of a buffer solution composed of 0.020M HCHO2
and 0.014M NaCHO2 is:
A.
3.59
B.
3.74
C.
3.90
4.
When 400ml of a 0.01M SnCl2 solution is mixed with a
300ml if...
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