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atroni [7]
3 years ago
9

A material has a density of 8.9g/cm3. You have six cubic centimeters of the substance. What is the materials mass in grams

Chemistry
1 answer:
dexar [7]3 years ago
3 0
<span>We know that density is equal to mass divide by volume of the material D=M/V. So then, in our case the material has a density of 8.9 gr/cm3 and the volume is 6 cm3. The mass will be M=D*V => 8.9 * 6 = 53.4 grams of substance.</span>
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4 0
3 years ago
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Given that cao(s) + h2o(l) → ca(oh)2(s), δh°rxn = –64.8 kj/mol, how many grams of cao must react in order to liberate 525 kj of
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454.3 g.

Explanation:

  • From the given data:

1.0 mol of CaO liberates → – 64.8 kJ.

??? mol of CaO liberates → - 525  kJ.

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8 0
3 years ago
A buffer consists of 0.45 M CH3COOH (acetic acid) and 0.35 M CH3COONa. The Ka of acetic acid is 1.8 x 10-5 . a) Calculate the pH
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8 0
3 years ago
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6 0
3 years ago
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