3 years ago

How do I calculate the sum of 6.078 g and 0.3329 g ?

Chemistry

1 answer:

Vesnalui [34]3 years ago

8 0

The answer is 6.4109 grams

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Ghella [55]

Answer:

The answer is D because NH4+and OH- it will be

N-1. N-1,

H-5

O-1 H-5

O-1

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3 years ago

Chemical formula for aluminum hydroxide is Al(OH)3 which of the following is true aluminum

frozen [14]

The answer to yo question is ( it has three OH groups).

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3 years ago

What is the molecular weight of H3PO4

olga2289 [7]

H = 1 amu
P = 31 amu
O = 16 amu

Therefore:

H3PO4 = 1 x 3 + 31 + 16 x 4 => 98 u

hope this helps!

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3 years ago

Chlorine is used to disinfect swimming pools. the accepted concentration for this purpose is 1.00 ppm chlorine, or 1.00 g of chl

frez [133]

The accepted concentration of chlorine is 1.00 ppm that is 1 gram of chlorine per million of water.

The volume of water is $2.29\times 10^{4} gal$ .

Since, 1 gal= 3785.41 mL

Thus, $2.29\times 10^{4} gal=2.29\times 10^{4}\times 3785.41 mL=8.66\times 10^{7}mL$

Density of water is 1 g/mL thus, mass of water will be $8.66\times 10^{7}g$ .

Since, 1 grams of chlorine → $10^{6}$ grams of water.

1 g of water → $10^{-6}$ g of chlorine and,

$8.66\times 10^{7}g$ of water →86.6 g of chlorine

Since, the solution is 9% chlorine by mass, the volume of solution will be:

$V=\frac{100}{9}\times 86.6 mL=9.62\times 10^{2} mL$

Thus, volume of chlorine solution is 9.62\times 10^{2} mL.

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3 years ago

How many carbon atoms are there in a 1.5-carat diamond? diamonds are a form of pure carbon. ( 1 carat=0.20 grams)?

11111nata11111 [884]

1 carot = 0.2 grams
1.5 carot = 0.3 grams.

1 mol of Carbon = 12 grams
x mol = 0.3 grams

0.3 * 1 = 12 x
x = 0.3/12
x = 0.025 mol

1 mol of Carbon is 6.02 * 10^23 atoms
0.025 mol of carbon is x

1/0.025 = 6.02*10^23 * /x
x = 0.025 * 6.02 * 10^23
x = 1.5 * 10^22 atoms of carbon.

5 0

3 years ago