Answer:
We need 247 mL of NaOH
Explanation:
Step 1: Data given
Molarity of NaOH = 0.587 M
Volume of 0.445 M NiBr2 solution = 163 mL = 0.163 L
Step 2: The balanced equation
NiBr2(aq) + 2NaOH(aq) Ni(OH)2(s) + 2NaBr(aq)
Step 3: Calculate moles of NiBr2
Moles NiBR2 = Molarity NiBR2 * volume
Moles NiBR2 = 0.445 M * 0.163 L
Moles NiBR2 = 0.0725 moles
Step 3: Calculate moles of NaOH
For 1 mol NiBr2 consumed, we need 2 moles NaOH
For 0.0725 moles NiBR2, we need 2* 0.0725 = 0.145 moles NaOH
Step 4: Calculate volume of NaOH
Volume = moles NaOH / Molarity NaOH
Volume = 0.145 moles / 0.587 M
volume = 0.247L = 247 mL
We need 247 mL of NaOH
