# Chemistry

Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.38kg of magnesium.

How much fluorine (in grams) did the second sample produce?

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1. (1.65/2.58) = (1.38/x)
Solve for x.

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posted by DrBob222
2. MgF2 produce

Sample 1) 1.65 kg Mg
2) 2.57 kg F

Sample 1) 1.32 kg Mg
2) ? g F

1. Find the ratio from sample 1,
1.65kg / 2,57kg = 0.64

2. Using Law of define properties, the first and second should have the same ratio.

1.3 kg / x kg F = 0.64
x = 2.0625 kg F
= 2062.5 g F

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