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Viefleur [7K]
3 years ago
8

For the following equation; ____S8­ + ___ O2 à ___ SO2 a. State what type of reaction is taking place? b. Balance the equation c

. If we started with 4.0 grams of Sulfur, how many moles of Sulfur Dioxide would be produced? (You must show your work)
Chemistry
1 answer:
postnew [5]3 years ago
5 0

Answer:

a) Combustion

b) S8 + 8O2  -> 8SO2

c) 0.125 mol SO2

Explanation:

a) Combustion

b) S8 + 8O2  -> 8SO2

c)

4.0 g S8 (\frac{1 mol S8}{256 g S8})(\frac{8 mol SO2}{1 mol S8} ) =0.125 mol SO2

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How is the molar mass of a molecule determined? What are its units?
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Phosphate buffers are commonly used in biological research. If a small amount of strong acid is added to a buffer solution that
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Answer:

A) [H3PO4] will increase, [KH2PO4] will decrease, and pH will slightly decrease.

Explanation:

A buffer is a solution which resists changes to its pH when a small amount of acid or base is added to it.

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For example, if a small amount of strong acid is added to a buffer solution that is 0.700 M H3PO4 and 0.700 M KH2PO4, the following reaction is obtained:

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1. An acetic acid solution that is 60.0% HC2H302 (by mass) contains
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Answer:

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Mass percentage indicates the amount in grams of solute per 100 grams of solution.

So a solution of acetic acid that is 60.0% HC₂H₃O₂ (by mass) indicates that it contains 60.0 g of acetic acid and 100.0 g of water.

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3 years ago
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