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Scrat [10]
2 years ago
5

You are trying to determine how

Chemistry
1 answer:
ss7ja [257]2 years ago
5 0

Answer:

0,218 moles

Explanation:

I will first explain how many liters is 256ml, that is 0,256 l.

because the m stands for milli which is a factor of 1000 -> (256 ml / 1000 = 0,256 l)

To calculate the amount of moles you multiply the volume with the concentration. So 0,256l x 0,855M = 0,218 moles.

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Balance Fe3O4 + H2 = Fe + H2O
Snezhnost [94]
Fe3O4 + 4H2 = 3Fe + 4H2O

Fe3O4 + 4H2SO4 = Fe2(SO4)3 + FeSO4 + 4H2O
3 0
3 years ago
You want to know how many moles of gas your lungs can hold. You start off with a balloon that has 1.4 moles of gas and occupies
Mrrafil [7]

Number of moles : n₂ = 1.775 moles

<h3>Further explanation</h3>

Given

Moles = n₁ = 1.4

Volume = V₁=22.4 L

V₂=28.4 L

Required

Moles-n₂

Solution

Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles  

The ratio of gas volume will be equal to the ratio of gas moles

\tt \dfrac{V_1}{V_2}=\dfrac{n_1}{n_2}

Input the values :

n₂ = (V₂ x n₁)/V₁

n₂ = (28.4 x 1.4)/22.4

n₂ = 1.775 moles

4 0
3 years ago
20 pts!!! What are the missing coefficients needed to make this equation balanced from left to right?
ivanzaharov [21]
Pretty sure the answer is c
7 0
3 years ago
How is a mole ratio written?
Lera25 [3.4K]
A mole ratio<span> is a conversion factor that relates the amounts in </span>moles<span> of any two substances in a chemical reaction. The numbers in a conversion factor come from the coefficients of the balanced chemical equation. The following six </span>mole ratios<span> can be </span>written<span> for the ammonia forming reaction above.</span>
3 0
3 years ago
It is January. The temperature is 33°F, and the wind is blowing. Huge clouds are coming in from the west.
Dimas [21]

Answer:

Explanation:

Since the atmosphere is fixed to the earth by gravity and rotates with the earth, there would be no circulation if some force did not upset the atmosphere's equilibrium.  The heating of the earth's surface by the sun is the force responsible for creating the circulation that does exist.

8 0
3 years ago
Read 2 more answers
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