Calculate the molarity M of NaOH solution which required 22
Calculate the molarity (M) of NaOH solution which required 22 15 mL of react completely with 0 552 g KHP This problem is similar to what done in the Lab and calculation steps shown (Part A) Show all steps by using convert factors. Must finish with c.v. and f.v. Calculate the volume (mL) of 0 450 M of KOH required to neutralize 25.55 mL of 0.155 M HCI solution. Show Equation and rearranged Equation before solving the problem Show all steps with conversion factor and formula, equations etc.to get full credit.
Solution
HKC8H4O4
no of moles of KHP = W/G.M.Wt = 0.552/204 = 0.0027 moles
HKC8H4O4 + NaOH --------> NaKC8H4O4 + H2O
1 mole 1 mole
1 mole of KHP react with 1 mole of NaOH
0.0027 moles of KHP react with = 1*0.0027/1 = 0.0027 moles of NaOH
molarity of NaOH = no of moles /volume in L
= 0.0027/0.02215 = 0.122 M
2. KOH + HCl ---------> KCl + H2O
1 mole 1 mole
KOH HCl
M1 = 0.45M M2 = 0.155M
V1 = V2 = 25.55ml
n1 = 1 n2 = 1
M1V1/n1 = M2V2/n2
V1 = M2V2n1/n2M1
= 0.155*25.55*1/1*0.45 = 8.8ml >>> answer