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vagabundo [1.1K]
3 years ago
12

C55H72MgN4O5. How many atoms are in this molecule?

Chemistry
1 answer:
Bas_tet [7]3 years ago
5 0
There are 137 atoms in this molecule. C55 + H72 = 127. 127 + Mg (one atom of magnesium = 128. 128 + N4 = 132. 132 + O5 = 137.
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5 0
3 years ago
5. What volume of silver metal will weigh exactly 4500.0 g. The density of silver is 20.5 g/cm.
Vitek1552 [10]

Answer:

The answer is

<h2>219.5 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

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mass = 4500 g

density = 20.5 g/cm³

We have

volume =  \frac{4500 }{20.5}  \\  = 219.51219...

We have the final answer as

<h3>219.51 mL</h3>

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2 years ago
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Answer:

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Explanation:

6 0
2 years ago
Read 2 more answers
Calculate the molarity 20ml of 3.5 m kci in to a final volume of 100 ml​
satela [25.4K]

Answer:

Molarity =  0.7 M

Explanation:

Given data:

Volume of KCl = 20 mL ( 0.02 L)

Molarity = 3.5 M

Final volume = 100 mL (0.1 L)

Molarity in 100 mL = ?

Solution:

Molarity = number of moles of solute / volume in litter.

First of all we will determine the number of moles of KCl available.

Number of moles = molarity × volume in litter

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Number of moles = 0.07 mol

Molarity in 100 mL.

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Molarity =  0.07 mol /0.1 L

Molarity =  0.7 M

3 0
3 years ago
Molarity is measured in
aniked [119]
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5 0
2 years ago
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