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Semmy [17]
3 years ago
13

Three of Louis Pasteur discovery

Chemistry
1 answer:
konstantin123 [22]3 years ago
7 0
Pasteurization, vaccines against antrax and rabies, discovered the germ fermentation
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What is the madd in grams of 0.40 moles of sodium borohydride, NaBH4
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Answer:

Mass = 15.1 g

Explanation:

Given data:

Number of moles of NaBH₄ = 0.40 mol

Mass in gram = ?

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Molar mass of NaBH₄ = 37.83 g/mol

By putting values,

Mass = 0.40 mol × 37.83 g/mol

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A gas sample has a temperature of 19 °C with an unknown volume. The
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Answer: 373 mL

Explanation:

Since there is no change in pressure, the formula: V / T = V / T can be used.

However, you must first convert the temperatures to Kelvin by adding 273 to them:

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When different elements react, their atoms join with other atoms.
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compound is formed .............

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Give the reason why the empty crucible should be heated before starting the experiment
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