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ozzi
3 years ago
10

How many moles of Oxygen are in 0.52 mol of Ca(NO3)2?

Chemistry
1 answer:
RideAnS [48]3 years ago
8 0
2 moles of NO3 contains 6 moles of O
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ones that can be mixed together

Explanation:

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How many atoms of iodine are in 12.75g of CaI2? Hint. How many Iodines are there in one CaI2 particle?
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Answer:

5.225x10^{22}atoms\ I

Explanation:

Hello!

In this case, since 12.75 g of calcium iodide has the following number of moles (molar mass = 293.89 g/mol):

n_{CaI_2}=12.75gCaI_2*\frac{1molCaI_2}{293.89gCaI_2}=0.0434molCaI_2

In such a way, since 1 mole of calcium iodide contains 2 moles of atoms of iodine, and one mole of atoms of iodine contains 6.022x10²³ atoms (Avogadro's number), we compute the resulting atoms as shown below:

atoms\ I=0.0434molCaI_2*\frac{2molI}{1molCaI_2} *\frac{6.022x10^{23}atoms\ I}{1molI} \\\\atoms\ I = 5.225x10^{22}atoms\ I

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4 0
3 years ago
How is the atomic mass of an atom calculated?
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There are four different starting molecules that one might use to synthesize the illustrated alkyl halide as the major product u
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The first diagram showcases the possible various starting molecules for the synthesis while the second diagram illustrates their mechanism.

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