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posledela
3 years ago
7

It the mass of a material is 46 grams and the volume of the material is 8 cm ^3 What would the density of the material to be

Chemistry
1 answer:
Nat2105 [25]3 years ago
3 0
5.75 Grams per cm^3

You do mass divided by volume
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What is the differing between biotic and abiotic
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Biotic - Living

Abiotic - Nonliving

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Hope this Helps!!

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Is NaCH an element ? why or why not?
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Rows on the period table are called ______While columns are called_____.
oksano4ka [1.4K]

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The rows running from left to right are called Periods and the columns going up and down are called Groups.

Explanation:

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3 years ago
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A solution is made by mixing equal masses of methanol, CH 4 O , and ethanol, C 2 H 6 O . Determine the mole fraction of each com
Fynjy0 [20]

Answer:

Mole fraction of CH_4O = 0.58

Mole fraction of C_2H_6O = 0.42

Explanation:

Let the mass of CH_4O and C_2H_6O = x g

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The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles_{CH_4O}= \frac{x\ g}{33.035\ g/mol}

Moles_{CH_4O}=\frac{x}{33.035}\ mol

Molar mass of C_2H_6O = 46.07 g/mol

Thus,

Moles= \frac{x\ g}{46.07\ g/mol}

Moles_{C_2H_6O}=\frac{x}{46.07}\ mol

So, according to definition of mole fraction:

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Mole\ fraction\ of\ CH_4O=\frac{\frac{x}{33.035}}{\frac{x}{33.035}+\frac{x}{46.07}}=0.58

Mole fraction of C_2H_6O = 1 - 0.58 = 0.42

6 0
3 years ago
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