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goldfiish [28.3K]
3 years ago
14

Find the molar mass of (NH4)2Cr2O7.

Chemistry
1 answer:
Pepsi [2]3 years ago
5 0

Answer: The molar mass of ammonium dichromate is 252.06 g/mol

  Hope this helped :)

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The less mass an object has, the greater its gravitational force.

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Use the mass and volume data to calculate the density of mercury to the nearest tenth. Mass of mercury = 57 g Volume of mercury
Elena-2011 [213]

Density = mass/volume = 57g/4.2 mL ≈ 13.6 g/mL

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4 years ago
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Which is the correct Lewis dot structure for BeH2 ?
kherson [118]
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Since there are 4 valence electrons in total, Beryllium has 2 and Hydrogen has 2. You would put the Be in the middle because there is only 1 of them.
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How to calculate from moles to grams?<br> 4.0 moles of Cu(CN)2
andreyandreev [35.5K]

Answer: The mass of given amount of copper (II) cyanide is 462.4 g

Explanation:

To calculate the number of moles, we use the equation:

We are given:

Moles of copper (II) cyanide = 4 moles

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Putting values in above equation, we get:

Hence, the mass of given amount of copper (II) cyanide is 462.4 g

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3 years ago
1. One of my goals is to get 8 hours of sleep a night. If I sleep 7,259,102 second, how many hours of sleep is that (w/ proper s
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