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monitta
3 years ago
11

How many particles are in 8.00 moles of bromine?

Chemistry
2 answers:
tester [92]3 years ago
7 0

Answer:

639.232 grams

Explanation:

Jet001 [13]3 years ago
4 0

Answer: 4.816 x 10^24 Particles

Explanation: 1mole of any substance contains 6.02x10^23 Particles

Therefore, 8 moles of bromine will contain = 8 x 6.02x10^23 = 4.816 x 10^24 Particles

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Hot water deep within earth can _______ minerals and transport them someplace else.
Vedmedyk [2.9K]

Answer:

Dissolve

Hope this helps!

Explanation:

5 0
2 years ago
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n
artcher [175]
Stoichiomety:

1 moles of C + 1 mol of O2 = 1 mol of CO2

multiply each # of moles times the atomic molar mass of the compund to find the relation is weights

Atomic or molar weights:

C: 12 g/mol
O2: 2 * 16 g/mol = 32 g/mol
CO2 = 12 g/mol + 2* 16 g/mol = 44 g/mol

Stoichiometry:

12 g of C react with 32 g of O2 to produce 44 g of CO2

Then 18 g of C will react with: 18 * 32/ 12 g of Oxygen = 48 g of Oxygen

And the result will be 12 g of C + 48 g of O2 = 60 g of CO2.

You cannot obtain 72 g of CO2 from 18 g of C.

May be they just pretended that you use the law of consrvation of mass and say that you need 72 g - 18g = 54 g. But it violates the proportion of C and O2 in the CO2 and is not possible.
3 0
3 years ago
Read 2 more answers
How many significant figures does 0.0006510 of have?
arsen [322]
It has 4 significant figures. If you see the Zero after the one decimal point you don’t count that and instead just started at 6
7 0
3 years ago
Read 2 more answers
This is the chemical formula for Chormium (III) nitrate Cr(NO3)3Calculate the mass percent of nitrogen in chromium(III) nitrate.
butalik [34]

Answer:

The percent composition for nitrogen in chromium(III) nitrate is 6%.

Explanation:

6 0
3 years ago
Calculate the pH of lemon juice to three significant figures, with a hydrogen ion concentration of
Airida [17]

Answer:

pH = - log [2.12 x 10^-3]

what is the log of 2.22 x 10^-3]

Take the opposite of that,

That is the pH, now, just make certain you use the correct significant figures.

Explanation:

3 0
3 years ago
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