3 years ago

1 mol Fe2(CrO4)3=____g

Chemistry

1 answer:

IgorLugansk [536]3 years ago

7 0

111.6g of Fe + 156g of Cr + 192g of O = 459.6g of Fe2(CrO4)3

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A patients blood is tested for growth hormone which has a molecular mass of 848.952g/mol. The test results show a normal concent

rusak2 [61]

Answer:

$\boxed{4.7\times 10^{-9}}$

Explanation:

Data:

MM = 848.952 g/mol

c = 4.0 x 10⁻⁶ g/L

V = 1 L

Calculations:

(a) Mass of growth hormone

$\text{Mass} = \text{1 L} \times \dfrac{4.0 \times 10^{-6} \text{ g}}{\text{1 L}} = 4.0 \times 10^{-6} \text{ g}$

(b) Moles of growth hormone

$\text{Moles} = 4.0 \times 10^{-6} \text{ g} \times \dfrac{\text{1 mol}}{\text{848.952 g}} = 4.7\times 10^{-9}\text{ mol}\\\\\text{There are $\boxed{\mathbf{4.7\times 10^{-9}}\textbf{ mol}}$ of growth hormone in 1 L of blood.}$

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3 years ago

What happens at night?

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Warm air other the ocean moves onshore I think

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The pH of a solution changes from 3.00 to 6.00. By what factor does the [H3O+] change?

Naya [18.7K]

: E) 1000 = 10^3
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3 years ago

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Imagine that you have a rectangular swimming pool, but you have no idea how deep it is. You

Ann [662]

To calculate the volume of any rectangular shape,
We can simply multiply length to wide and to depth.
Let d be the depth.
15 x 6 x d = 216
d = 216 / 15 / 6
d = 2.4
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3 years ago

How to prepare R-SH from R-Cl? Show reaction.

Gnesinka [82]

Answer:

Alkylation reaction help in formation of thiol R-SH

<h2>Explanation:</h2>

Say lets take sodium hydrosulfide (NaSH) and alkyl chloride (R-Cl)/ any acid like chloroaceic acid or choloro or potassim acetates.

R-Cl + NaSH --> R-SH + NaCl

Such reactions are seen in the production of paper from wood pulp and in the production of organic compounds like thioglycolic acids (TGA)

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3 years ago