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gogolik [260]
2 years ago
13

Element "Z" has 2 naturally occurring isotopes with the following masses and natural abundances:

Chemistry
1 answer:
fiasKO [112]2 years ago
3 0

Answer: the atomic Mass of Z is 46.26

Explanation:Please see attachment for explanation

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Pcl3+H2O=H3PO3+Hcl=?​
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Answer:

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Explanation:

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Type the correct answer in the box. Express your answer to three significant figures.
VladimirAG [237]

<u>Given:</u>

Mass of calcium nitrate (Ca(NO3)2) = 96.1 g

<u>To determine:</u>

Theoretical yield of calcium phosphate, Ca3(PO4)2

<u>Explanation:</u>

Balanced Chemical reaction-

3Ca(NO3)2 + 2Na3PO4 → 6NaNO3 + Ca3(PO4)2

Based on the reaction stoichiometry:

3 moles of Ca(NO3)2 produces 1 mole of Ca3(PO4)2

Now,

Given mass of Ca(NO3)2 =  96.1 g

Molar mass of Ca(NO3)2 =  164 g/mol

# moles of ca(NO3)2 = 96.1/164 = 0.5859 moles

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Molar mass of Ca3(PO4)2 = 310 g/mol

Mass of Ca3(PO4)2 produced = 0.0196 * 310 = 6.076 g

Ans: Theoretical yield of Ca3(PO4)2 = 6.08 g



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2 years ago
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4HCI + O2 =2H20 + Cl2
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