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Help me solve this solution stoichiometry To solve stoichiometry problems, you m

ID: 972417 • Letter: H

Question

Help me solve this solution stoichiometry

To solve stoichiometry problems, you must always calculate numbers of moles. Recall that molarity, M, is equal to the concentration in moles per liter: M = mol/L. When solutions of silver nitrate and magnesium chloride are mixed, silver chloride precipitates out of solution according to the equation 2AgNO_3(aq) + MgCl_2(aq) rightarrow 2AgCl(s) + Mg(NO_3)_2(aq) What mass of silver chloride can be produced from 1.64 L of a 0.202 M solution of silver nitrate? Express your answer with the appropriate units. The reaction described in Part A required 3.54 L of magnesium chloride. What is the concentration of this magnesium chloride solution? Express your answer with the appropriate units.

Explanation / Answer


No of mol of AgNO3 = 1.64*0.202 = 0.33128 mol

No of mol of AgCl formed = 0.33128 mol

maSS OF AgCl produced = (0.33128)*143.32 = 47.5 grams

part B

No of mol of MgCl2 required = (0.33128/2) (1/ 3.54) = 0.047 M