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Katarina [22]
2 years ago
6

How many atoms are there in 5.7 mol of Li?

Chemistry
1 answer:
tatiyna2 years ago
4 0

Answer:Answer:

5.8

×

N

A

, where  

N

A

=

Avogadro's Number,  

6.022

×

10

23

⋅

m

o

l

−

1

Explanation:

And  

5.8

⋅

m

o

l

×

6.022

×

10

23

⋅

m

o

l

−

1

=

?

?

 

What is the mass of this quantity of lithium atoms? Hint, 1 mole has a mass of  

6.94

⋅

g

.

Explanation:

i hope this helps

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(Thermodynamics)
frutty [35]

Answer:

3853 g

Step-by-step explanation:

M_r: 107.87

         16Ag + S₈ ⟶ 8Ag₂S; ΔH°f =  -31.8 kJ·mol⁻¹

1. Calculate the moles of Ag₂S

Moles of Ag₂S = 567.9 kJ × 1 mol Ag₂S/31.8kJ = 17.858 mol Ag₂S

2. Calculate the moles of Ag

Moles of Ag = 17.86 mol Ag₂S × (16 mol Ag/8 mol Ag₂S) = 35.717 mol Ag

3. Calculate the mass of Ag

Mass of g = 35.717 mol Ag × (107.87 g Ag/1 mol Ag) = 3853 g Ag

You must react 3853 g of Ag to produce 567.9 kJ of heat

3 0
3 years ago
You are on an alien planet where the names for substances and the units of measures are very unfamiliar.
enyata [817]

Given that

1 skvarnick = 45 quibs

3 quibs = 7 sleps

Now if we have 45 quibs it means we have you have one skvarnick

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so 45 quibs = 7 X 45 / 3 = 105 sleps

8 0
3 years ago
Assume that instead of Taq polymerase, another polymerase, one that is very heat-sensitive, was used in a PCR. What differences
frez [133]

Answer:

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Any other enzyme used at such an high temperature would have decreased the enzyme activity and the procedure would not be completed.

7 0
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All the others are covalent.
7 0
3 years ago
Webb has calculated the percent composition of a compound. How can he check his result?
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7 0
2 years ago
Read 2 more answers
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