how do i solve 1 Formulas New FP Old FP MV MV OH antilog

how do i solve 1

Formulas New FP = Old FP + M,V, M,V [OH ] = antilog (-p011) [H+] = antilog (-pH) % mass = (mass solute / mass solution) x 100 New BP-Old BP + , K, = 1 E-14 (moll.) pOH =-log ( [OH 1) pH =-log (IH\'D 1. Molarity. What is the molarity of 35.0 grams of CaCl, in 1250 mL of CaCl, solution? 2. % Mass Concentration. what is the % mass concentration of 35.00 g NaCl dissolved in 1.3 L H2O? 3. Molarity. How many moles of AgNO, are in .55 L of a .2 M solution of AgNO\'2 4. Dilution. Given a stock solution of 16.0 M HNO,, determine how much concentrated acid is needed t make 550 mL of 0.5 M HNO,.

Solution

Answer (1)

Molarity = moles of solute / volume of solution in L

moles of CaCl2= mass/molar mass = 35 g/110.98 g/mol= 0.315 moles of CaCl2

Volume of solution = 1250 mL= 1.250 L

using the values

Molarity = 0.315/1.250 = 0.252 M