Question

find molarity of solution prepared by mixing 150 ml of water to 350 ml of M/10 h2so4 solution is
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Answer 1

Answer:

No of moles of H2SO4 in 50 mL of 0.5 M= 0.5 x50 /1000 = 25 /1000

No of moles of H2SO4 in 150 mL of 0.25 M= 0.25 × 150 / 1000=37.5/1000

Total moles in mixture = 25/1000 + 37.5 /1000

= 62.5/1000

Volume of the final mixture = 250 mL = 0.25 L

Molarity of 250 mL mixture = 62.5/1000 ÷ 0.25

= 0.25 M

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Explanation: