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stepladder [879]
3 years ago
8

A piece of silver metal weighting 194.3g placed in graduated cylinder containing 242.0ml of water the volume of water now reads

260.5ml,calculate the density of the metal
Chemistry
1 answer:
Sav [38]3 years ago
7 0

Explanation:

Volume of metal = 260.5ml - 242.0ml = 18.5ml

Density = Mass / Volume = 194.3 / 18.5 = 10.5g/cm³.

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How many moles of O2 are required to generate 18 moles of H2O in the given reaction? 2C8H18 + 25O2 16CO2 + 18H2O
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4 years ago
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Given the balanced equation below, calculate the moles of aluminum that are needed to react completely with 28.7 moles of FeO. Y
Alexxx [7]

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Moles of FeO = 28.7 mol

Moles of Al needed to react with FeO = ?

Solution:

Chemical equation:

2Al + 3FeO → 3Fe + Al₂O₃

Now we will compare the moles of Al with FeO.

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                             2            :            3

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Thus 43.05 moles of Al needed to react with 28.7 moles of FeO.

8 0
3 years ago
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