3 years ago

What is the mole ratio of to Fe?1:31:43:14:3

Chemistry

1 answer:

kobusy [5.1K]3 years ago

8 0

What is the mole ratio of to Fe? if oxygen it is 4:3 Fe3O4

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Find [cu2+] in a solution saturated with cu4(oh)6(so4) if [oh − ] is fixed at 2.3 ✕ 10−6 m. note that cu4(oh)6(so4) gives 1 mol

ki77a [65]

<span>

</span> $Cu_4(OH)_6(SO_4)$
<span>
You have OH- conc = </span>2.3 ✕ 10−6 m
From the formula, you can observe the ratio of Cu2+ to OH- is 4 : 6 = 2:3

So, for 2.3 ✕ 10−6 m OH-
[Cu2+] = $\frac{2}{3} \times 2.3 \times 10^{-6}$

$= 1.53 \times 10^{-6} 
$

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3 years ago

A 4.24 kg marble slab has the volume of 1564 cm3 What is the density in g/cm3

miskamm [114]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

volume of marble = 1564 cm³

1 kg = 1000 g

4.24 kg = 4240 g

mass = 4240 g

The density is

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We have the final answer as

Hope this helps you

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3 years ago

A method of problem solving that uses the units that are part of a measurement to solve a problem

zzz [600]

I believe dimensional analysis

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3 years ago

A gas occupies 3.5L at 2.5 kPa pressure. What is the volume at 100 mmHg at the same temperature? Be sure to

nasty-shy [4]

The volume at 100 mmHg : 0.656 L

<h3>Further explanation</h3>

Boyle's Law

<em>At a constant temperature, the gas volume is inversely proportional to the pressure applied </em>

$\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}$

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

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3 years ago

Please help me with this question it's due in like 3hours from now

saw5 [17]

237kj mole for both.....

4 0

3 years ago

What is the mole ratio of ￼ to Fe?1:31:43:14:3

What is the mole ratio of to Fe?1:31:43:14:3