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9 January, 22:11

What is the molarity of the dilute solution when each of the following solution related to the given final volume?

(a) 1.00 L of a 0.250-M solution of Fe (NO3) 3 is diluted to a final volume of 2.00L

(b) 0.5000 L of a 0.1222-M solution of C3H7OH isdiluted to a final volume of 1.250 L

(c) 2.3 5 L of a 0.350-M solution of H3PO4 diluted to a final volume of 4.00 L

(d) 22. 50 mL of 0.025-M solution of C12H22O11 is diluted to 100.0 mL

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Answers (1)
  1. 9 January, 22:17
    0
    a) 0.125 M

    b) 0.04888 M

    c) 0.2056 M

    d) 0.005625 M

    Explanation:

    (a) Given:

    V₁ = 1.00 L

    M₁ = 0.250-M

    V₂ = 2.00 L

    Now,

    We know,

    M₁V₁ = M₂V₂

    where, M₂ is the molarity of the final solution

    Thus,

    0.250 * 1.00 = M₂ * 2.00

    or

    M₂ = 0.125 M

    b) Given:

    V₁ = 0.5000 L

    M₁ = 0.1222-M

    V₂ = 1.250 L

    Now,

    We know,

    M₁V₁ = M₂V₂

    Thus,

    0.1222 * 0.5000 = M₂ * 1.250

    or

    M₂ = 0.04888 M

    c) Given:

    V₁ = 2.35 L

    M₁ = 0.350 M

    V₂ = 4.00 L

    Now,

    We know,

    M₁V₁ = M₂V₂

    Thus,

    0.350 * 2.35 = M₂ * 4.00

    or

    M₂ = 0.2056 M

    d) Given:

    V₁ = 22.50 L

    M₁ = 0.025 M

    V₂ = 100.0 L

    Now,

    We know,

    M₁V₁ = M₂V₂

    Thus,

    0.025 * 22.50 = M₂ * 100.0

    or

    M₂ = 0.005625 M
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