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Q3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2.2H20 (244.2 g/mol) and Na PO.12H20 (380.2
Posted: Fri Apr 29, 2022 1:03 pm
by answerhappygod
- Q3 Circle The Most Appropriate Answer 12 1 A 1 26 G Salt Mixture Of Bacl2 2h20 244 2 G Mol And Na Po 12h20 380 2 1 (35.2 KiB) Viewed 30 times
Q3) Circle the most appropriate answer? [12] 1) A 1.26 g salt mixture of BaCl2.2H20 (244.2 g/mol) and Na PO.12H20 (380.2 g/mol) was dissolved in 150 ml. hot water. The white precipitate, Bay(PO.) (602 g/mol) was found to be 0.28 g. Calculate the percentage of Na PO..12H30 in the mixture given that BaCl2.2H, is the limiting reactant? (A) 72.9% (B) 79.5 % (C) 12.4 % (D) 84.4 % 2) A 1.38 g of KC (SO.),.12H_0 was heated until reach a constant mass. Calculate the mass in grams of the residue KCr(SO4). ? (H30 - 18.0 g/mol, KCr(SO4)2 283.2 g/mol) (A) 1.03 (B) 0.64 (C) 0.78 (D) 0.10 3) The net ionic equation for the reaction between NaOH and HCl is: (Α) Η' + OH(-) - H20 (B) Na2CO3(aq) CO2(g) + H2O (C) CO. (6) + 2H H2O + CO2(e) (D) HCI + Cle (10) ( Han) 4) Which of the following pair of solutions will form precipitate while mix together? (A) KNO, and Na2CO3 (B) NaCl and Fe(NO3)3 (C) AgNO, and NaNO; (D) Na2SO and Ba(NO3)2