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3 years ago

The gram formula mass of a compound is 48 grams. The mass of 1.0 moles of this compound is(1) 1.0g (2) 4.8g (3) 48.0g (4) 480g

1 answer:

7 0

The answer is (3) 48.0 g. The gram formula mass means that the mass of one mol compound. So the mass of 1.0 mol of this compound is equal to the gram formula mass 48 g.

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Answer:

Lead sulfite is the inorganic compound with the formula PbSo3 or O3PbS.

Explanation:

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2 years ago

Ferris & Mona used the ORP sensor to titrate a ferrous ammonium sulfate solution, (NH4)2Fe(SO4)2 with KMnO4 titrant.

DIA [1.3K]

Answer:

The correct option is: A. 0.168 M

Explanation:

Chemical reaction involved:

5 Fe²⁺ (aq) + MnO₄⁻ (aq) + 8 H⁺ (aq) → 5 Fe³⁺ (aq) + Mn²⁺ (aq) + 4 H₂O

Given: For MnO₄⁻ solution-

Number of moles: n₁ = 1, Volume: V₁ = 20.2 mL, Concentration: M₁ = 0.0250 M;

For Fe²⁺ solution:

Number of moles: n₂ = 5, Volume: V₂ = 15 mL, Concentration: M₂ = ?M

To find out the concentration of Fe²⁺ solution (M₂), we use the equation:

$\frac{M_{1}\times V_{1}}{n_{1}} = \frac{M_{2}\times V_{2}}{n_{2}}$

$\frac{0.0250 M\times 20.2 mL}{1} = \frac{M_{2}\times 15 mL}{5}$

$0.505 = M_{2}\times 3$

$M_{2} = \frac{0.505}{3} = 0.168M$

Therefore, the concentration or molarity of Fe²⁺ solution: M₂ = 0.168 M

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3 years ago

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Paha777 [63]

Answer:

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Explanation:

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Explanation:

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