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Helga [31]
3 years ago
4

g Chapter 18 Values The following values will be useful for problems in this chapter. Acid K Substance or Species K HF Ka = 7.2

´ 10-4 NH3 Kb = 1.8 ´ 10-5 HNO2 Ka = 4.5 ´ 10-4 (CH3)3N Kb = 7.4 ´ 10-5 CH3COOH Ka = 1.8 ´ 10-5 [Co(OH2)6]2+ Ka = 5.0 ´ 10-10 HOCl Ka = 3.5 ´ 10-8 [Fe(OH2)6]2+ Ka = 3.0 ´ 10-10 HOBr Ka = 2.5 ´ 10 -9 [Fe(OH2)6]3+ Ka = 4.0 ´ 10-3 HOCN Ka = 3.5 ´ 10-4 [Be(OH2)4]2+ Ka = 1.0 ´ 10-5 HCN Ka = 4.0 ´ 10-10 [Cu(OH2)4]2+ Ka = 1.0 ´ 10-8 H2SO4 Ka1 = very large HBO2 Ka = 6.0 ´ 10-10 Ka2 = 1.2 ´ 10-2 (COOH)2 Ka1 = 5.9 ´ 10-2 H2CO3 Ka1 = 4.2 ´ 10-7 Ka2 = 6.4 ´ 10-5 Ka2 = 4.8 ´ 10-11 CH3NH2 K b = 5.0 ´ 10-4 ***************************************************************************** Calculate the pH of a solution in which [OH-] = 2.50 ´ 10-4M
Chemistry
1 answer:
bekas [8.4K]3 years ago
7 0

Answer:

yes

Explanation:

gergtehwh

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Explanation:

If 1 mole CH4 has 4 H atoms 2,3 moles of CH4 will have 9,2 H atoms.

4 0
4 years ago
What mass of melamine, c3n3(nh2)3, will be obtained from 113.0 kg of urea, co(nh2)2, if the yield of the overall reaction is 73.
creativ13 [48]

The balanced equation for the reaction is:

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Convert amount of urea from kg to moles

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Yield of overall reaction is 73% so multiply 39.438 with 0.73

<span>39.438 x 0.73 = 28.799 kg is the answer</span>

6 0
3 years ago
What is the change in atomic mass when an atom emits an alpha particle? A. decreases by 2 B. decreases by 1 C. decreases by 4 D.
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7 0
3 years ago
How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution
Veronika [31]
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The solution remaining from Part A, which contains 0.0100 M Ni2 and Fe2 ions, is still saturated with H2S gas, producing a conce
Arturiano [62]

Answer:I think the answer would be B

Explanation:

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