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Which of the following cannot act as a Lewis base? (Select all that apply.)
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Chemistry
- A 0.077 M solution of an acid HA has pH = 2.16. What isthe percentage of the acid that is ionized?(a) 0.090% (b) 0.69% (c) 0.90% (d) 3.6% (e) 9.0%arrow_forwardFor which of the following solutions must we consider the ionization of water when calculating the pH or pOH?(a) 3 × 10−8 M HNO3(b) 0.10 g HCl in 1.0 L of solution(c) 0.00080 g NaOH in 0.50 L of solution(d) 1 × 10−7 M Ca(OH)2(e) 0.0245 M KNO3arrow_forwardDetermine [OH-] in each base solution. If the acid is weak, indicate the value that [OH¯] is less than. (a) 0.25 M NaOH (b) 0.25 M NH3 (c) 0.25 M Sr(OH)2 (d) 1.25 M KOHarrow_forward
- Calculate the pH of each solution.(a) [H3O+] = 1.7 * 10-8 M(b) [H3O+] = 1.0 * 10-7 M(c) [H3O+] = 2.2 * 10-6 M(d) [H3O+] = 7.4 * 10-4 Marrow_forwardGiven the following solutions: 0.1 M ΝΗ; 0.1 M Naz CO3 0.1 M NaCl 0.1 M CH3 CO,H 0.1 Μ ΝH4α 0.1 M NaCH3 CO2 (K (NH3) = 1.8 x 10-8)arrow_forwardWhich of the following are not strong acids? (choose all that apply) HCIO4 HI HNO3 HF HCIO2 HBr HNO2 H2SO4arrow_forward
- Determine [OH-] in each base solution. If the acid is weak, indicate the value that [OH-] is less than.(a) 2.5 M KOH(b) 1.95 M NH3(c) 0.225 M Ba(OH)2(d) 1.8 M C5H5Narrow_forwardIf the pH of a solution is equal to 3, the hydroxide ion concentration is _____. (A)1 x 1O11 M(B)1 x 103 M(C)1 x 10-3 M(D)1 x 10-11 Marrow_forwardCalculate the pH of the solution resulting from the addition of 20.0 mL of 0.100 M NAOH to 30.0 mL of 0.100 M HNO3. 16 (a) 1.35 (b) 1.70 (c) 1.95 (d) 2.52 (e) 2.80arrow_forward
- What is the pH of a 5.0M NH4NO3 solution? (A) 9.72 (B) 2.05 (C) 4.27 (D) 5.3x10-3 NH4+ is an acid (conjugate of NH3). Find Ka make ICE table. The correct answer is (C), show howarrow_forwardChoose the correct answers from among the alternatives; For the sentence to be correct: they are strong acids A)HNO3, H2SO4, HClO4 B)HF, H2SO4, HClO4 C)HF, HNO3, HClO4 D)HF HNO3, H2SO4arrow_forwardWhich of the following substances can be classified as a Lewis base? CO Cu a) O: only b) O, and CO c) 0, CO and Cu d) 0,, CO and Farrow_forward
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