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Title: 15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.478 M HNO2 (Ka for HNO2 = 4.0 104). What is ... Post by: Guest on Mar 21, 2021 15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.478 M HNO2 (Ka for HNO2 = 4.0 × 10–4). What is the equilibrium concentration of NO2– ions? ▸ 2.5 × 10–3M ▸ 1.7 × 10–4M ▸ 4.2 × 10–1M ▸ 5.0 × 10–2M ▸ None of these are correct. Title: 15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.478 M HNO2 (Ka for HNO2 = 4.0 104). What is ... Post by: KKRules on Mar 21, 2021 Content hidden
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