1) If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the mo
ID: 551386 • Letter: 1
Question
1) If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be? 15 M Na OH1 16 L 2) If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be? M NaOH 1 3) How much 0.05 M HCI solution can be made by diluting 250 mL of 10 M HCI? 26 L 4) I have 345 mL of a 1.5 M NaCI solution. If I boil the water until the volume of the solution is 250 mL, what will the molarity of the solution be? 1.5 M Na(L : 43.48 345 L 1S L How much water would I need to add to 500 mL of a 2.4 M KCI solution to 5) make a 1.0 M solution? 2.4 MKC 500 L 24 MKcExplanation / Answer
1. M1V1 = M2V2
0.15M*125mL = M2*150mL
M2 = 0.15M*125mL / 150mL
M2 = 0.125M
Molarity = 0.125M
2. M1V1 = M2V2
0.15M*100mL = M2*150mL
M2 = 0.15M*100mL / 150mL
M2 = 0.1M
3. M1V1 = M2V2
10M*250mL = 0.05M*V2
V2 = 10M*250mL/0.05M
V2 = 50,000mL = 50L
4. M1V1 = M2V2
1.5M*345mL = M2*250mL
M2 = 1.5M*345mL / 250mL
M2 = 2.07M
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