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19 Nov 2019
Answer all the questions in the space provided. Balance the following equations: i). Na_2 O(s) + H_2 O(l) rightarrow NaOH(aq): Ans. _ ii) MgCO_3 (s) + HNO_3 (aq) rightarrow Mg(NO_3)_2+ CO_2 (g) + H_2 O(1) Ans: _ iii) NH_3 (aq) + H_2 SO_4 (aq) rightarrow (NH_4 SO-4 (aq) Ans. _ iv) H_3 PO_4 (aq) + NaOH(aq) rightarrow Na_2 HPO_4 (aq) + H_2 O(l) Ans: _ Calculate the volume of 0.1005 M HC1 that would be needed to neutralize exactly 0.2505 g of MgO according to the reaction: MgO(s) + 2 HCl(aq) rightarrow MgCl_2 (aq) + H_2 O(l) Ans. _ A 0.2076 g of Na_2 CO_3 required 20.35 mL of a hydrochloric acid solution for complete neutralization: Na_2 CO_3 (aq) + 2 HCl(aq) rightarrow 2 NaCl(aq) + CO_2 (g) + H_2 O(1) What is the molarity of the HC1 solution? Ans. _
Answer all the questions in the space provided. Balance the following equations: i). Na_2 O(s) + H_2 O(l) rightarrow NaOH(aq): Ans. _ ii) MgCO_3 (s) + HNO_3 (aq) rightarrow Mg(NO_3)_2+ CO_2 (g) + H_2 O(1) Ans: _ iii) NH_3 (aq) + H_2 SO_4 (aq) rightarrow (NH_4 SO-4 (aq) Ans. _ iv) H_3 PO_4 (aq) + NaOH(aq) rightarrow Na_2 HPO_4 (aq) + H_2 O(l) Ans: _ Calculate the volume of 0.1005 M HC1 that would be needed to neutralize exactly 0.2505 g of MgO according to the reaction: MgO(s) + 2 HCl(aq) rightarrow MgCl_2 (aq) + H_2 O(l) Ans. _ A 0.2076 g of Na_2 CO_3 required 20.35 mL of a hydrochloric acid solution for complete neutralization: Na_2 CO_3 (aq) + 2 HCl(aq) rightarrow 2 NaCl(aq) + CO_2 (g) + H_2 O(1) What is the molarity of the HC1 solution? Ans. _
Jean KeelingLv2
14 Mar 2019