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2. Answer the following questions about a sample of calcium phosphate: a. What is the molecular weight of Ca3(PO4)2? b. How many moles of Ca3(PO4)2 are the in 1350g? c. How many molecules of Ca3(PO4)2 are there in 1350g? d. How many phosphorus atoms are there in 1350g of Ca3(PO4)2? e. How many moles of calcium are there in 1350 g of Ca3(PO4)2? f. What is the mass of 2.1 x 10^25 molecules of Ca3(PO4)2? 

          2. Answer the following questions about a sample of calcium phosphate:

a. What is the molecular weight of Ca3(PO4)2?

b. How many moles of Ca3(PO4)2 are the in 1350g?

c. How many molecules of Ca3(PO4)2 are there in 1350g?

d. How many phosphorus atoms are there in 1350g of Ca3(PO4)2?

e. How many moles of calcium are there in 1350 g of Ca3(PO4)2?

f. What is the mass of 2.1 x 10^25 molecules of Ca3(PO4)2?
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2. Answer the following questions about a sample of calcium phosphate: a. What is the molecular weight of Ca3(PO4)2? b. How many moles of Ca3(PO4)2 are the in 1350g? c. How many molecules of Ca3(PO4)2 are there in 1350g? d. How many phosphorus atoms are there in 1350g of Ca3(PO4)2? e. How many moles of calcium are there in 1350 g of Ca3(PO4)2? f. What is the mass of 2.1 x 10^25 molecules of Ca3(PO4)2?

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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2. Answer the following questions about a sample of calcium phosphate: a. What is the molecular weight of Ca3(PO4)2? b. How many moles of Ca3(PO4)2 are the in 1350g? c. How many molecules of Ca3(PO4)2 are there in 1350g? d. How many phosphorus atoms are there in 1350g of Ca3(PO4)2? e. How many moles of calcium are there in 1350 g of Ca3(PO4)2? f. What is the mass of 2.1 x 10^25 molecules of Ca3(PO4)2?
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Transcript

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00:01 Good day in this question we will be solving this using the given formula.
00:05 So we are given the formula of calcium phosphate, which is ca3, b .o4, 2, calcium phosphate.
00:21 So for letter a, we are asked to solve for the molecular weight.
00:26 So molecular weight is the sum of all the atomic masses present in the compound, which is we have molecular weight.
00:33 Of calcium phosphate is equals to calcium, atomic mass of calcium is 3 times we have 40 .078 grams per mole plus phosphorus is we have 2 phosphorus so 2 times 30 .97 grams per mole plus 4 times 30 .97 grams per mole plus 4 times to 8 oxygen which is 16 grams per mole.
01:16 So this is equals to molecular weight is 30010 .17 grams per mole.
01:34 Next for letter b we are asked to solve for the moles of the calcium phosphate with a given mass...
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