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MatroZZZ [7]
3 years ago
9

HELP PLEASEEE it's for an exam on monday​

Chemistry
1 answer:
zhannawk [14.2K]3 years ago
4 0

From the stoichiometry of the reaction, we can see that the volume of carbon monoxide reacted is 44.8 L.

<h3>What is stoichiometry?</h3>

Stoichiometry is used to obtain the amount of substance reacted or the amount of product formed.

Number of moles of CO2 in 88g = 88g/4 g/mol = 2 moles

Molar mass of carbon monoxide = 12 + 16 = 28g/mol

We can see that 1 mole of oxygen was used in the reaction hence the mass of oxygen used is 32 g/mol. Given the stoichiometry of the reaction, 28g of carbon monoxide was burned.

If 1 mole of a gas occupies 22.4 L

2 moles of a gas occupies 2 moles  * 22.4 L/1 mole

= 44.8 L

Learn more about stoichiometry:brainly.com/question/9743981

#SPJ1

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Hydrogen gas and solid gold(III) sulfide are reacted. Pure solid gold metal is formed and gaseous hydrogen sulfide is released.
alexdok [17]

The reactants of the reaction will be solid gold (III) sulfide and hydrogen gas, while the products will be pure solid gold and hydrogen sulfide gas.

<h3>Chemical reactions</h3>

Reactants react together during reactions to arrive at products.

In this case, solid gold (III) sulfide and hydrogen gas react according to the following equation:

Au_2S_3(s) + 3 H_2 (g)-- > 2 Au(s) + 3H_2S(g)

Reactants = solid gold (III) sulfide, hydrogen gas

Products: pure solid gold, hydrogen sulfide gas

More on chemical reactions can be found here: brainly.com/question/1689737

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2 years ago
How does the chemical formula for the nitrite ion differ than the chemical formula for the nitrate ion?
olasank [31]
Hope this helps you!

7 0
3 years ago
A very new item just arrived in the market. It is very good for construction, and other things. Now, this item has chemicals, an
VMariaS [17]

Answer: 4,000 grams of NaCI

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We know that there are 400g of NaCI in one drop.

This bottle has 10 drops of this item.

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400 x 10 = 4,000.

The answer to the question is 4,000. Hope this helps!

6 0
3 years ago
If a temperature increase from 18.0 ∘C to 37.0 ∘C triples the rate constant for a reaction, what is the value of the activation
iragen [17]

Answer : The activation energy for the reaction is, 43.4 KJ

Explanation :

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

or,

\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]

where,

K_1 = rate constant at 18.0^oC

K_2 = rate constant at 37.0^oC = 3K_1

Ea = activation energy for the reaction = ?

R = gas constant = 8.314 J/mole.K

T_1 = initial temperature = 18.0^oC=273+18.0=291K

T_2 = final temperature = 37.0^oC=273+37.0=310K

Now put all the given values in this formula, we get:

\log (\frac{3K_1}{K_1})=\frac{Ea}{2.303\times 8.314J/mole.K}[\frac{1}{291K}-\frac{1}{310K}]

Ea=43374.66J/mole=43.4KJ

Therefore, the activation energy for the reaction is, 43.4 KJ

4 0
3 years ago
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