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VLD [36.1K]
4 years ago
6

The formula for cocaine is C17H21N04. What is the percentage of carbon in the

Chemistry
2 answers:
Alekssandra [29.7K]4 years ago
7 0

Answer:

d

Explanation:

Approx. 70%

Explanation:

%Carbon

 

=

 

Mass of carbon

Mass of molecule

 

×

100

%

=

 

17

×

12.011

⋅

g

⋅

m

o

l

−

1

303.39

⋅

g

⋅

m

o

l

−

1

 

×

100

%

 

=

 

?

?

%

PolarNik [594]4 years ago
6 0
The correct answer is d
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When 100 mL of 1.0 M Na3PO4 is mixed with 100 mL of 1.0 M AgNO3, a yellow precipitate forms and [Ag ] becomes negligibly small.
lana [24]

Answer:

Na3PO4 + 3AgNO3 -------> Ag3PO4 + 3NaNO3

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Explanation:

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(0.1)(1)(3)= 0.3 mol Na+

(0.1)(1)= 0.1 mol NO3-

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