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777dan777 [17]
2 years ago
7

A 4.08 g sample of a compound composed of nitrogen and oxygen contains 3.02 g of oxygen. What is the empirical formula

Chemistry
1 answer:
blsea [12.9K]2 years ago
4 0

Answer:

Explanation:

poop

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Concentrated hydrochloric acid is 36% (Weight/Volume) hydrochloric acid and has a density of 1.18 g.cm -3.
dezoksy [38]

The concentration refers to the amount of substance that is contained in solution.

<h3>What is the concentration?</h3>

The concentration refers to the amount of substance that is contained in solution. We can be able to obtain the concentration of the raw acid by the use of the relation;

Co = 10pd/M

M = molar mass of the acid

p = percentage of the acid

d = density of the acid

Co = 10 * 36 * 1.18/36.5

Co = 11.6 M

Using the dilution formula;

C1V1 = C2V2

10 * 11.6 = C2 * 1000

C2 = 10 * 11.6/1000

C2 = 0.116 M

Using again;

C1V1 = C2V2

0.116 * 5 = C2 * 20

C2 = 0.116 * 5 /20

C2 = 0.029 M

Learn more about concentration:brainly.com/question/10725862

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8 0
2 years ago
Part a the disproportionation of mn2+(aq) to mn(s) and mno2(s) in acid solution at 25 ∘c. calculate δg∘rxn.
ollegr [7]

Answer:

ΔG^{o} = -461198.3 J

Explanation:

Gibbs free energy is defined as the energy associated with a given chemical reaction which can be used to do work. Firstly, we need to figure out the chemical equation for the given problem. For the given problem, the chemical equation is:

Mn^{2+} _{(aq)} + 2e^{-}⇒Mn_{(s)}      E^{o} = -1.18 V

Mn^{2+} _{(aq)} + H_{2}O ⇒MnO_{2(s)} +4H^{+} + 2e^{-}E^{o} = -1.21 V

The addition of the two E^{o} gives the E_{cell} of the equation, i.e. -1.18-1.21 = -2.39 V.

Then, using the equation for ΔG^{o}, we have:

ΔG^{o} = n*F*E^{o} = 2*96485*-2.39 = -461198.3 J

4 0
4 years ago
What was the initial volume of gas if a new volume of 3.00 liters is obtained when the pressure is decreased from 3.00 atm to 1.
timurjin [86]

Answer:

1 L

Explanation:

V1=P2V2/P1

Checking this, it is correct because P and V at constant T has an inverse relationship.

- Hope that helps! Please let me know if you need further explanation.

4 0
3 years ago
Atomic energy is the energy _____. in the nucleus of an atom of electrons and their shells in chemical bonds of elements and com
ivolga24 [154]
The correct statement to fill the blank would be the first option. Atomic energy is the energy in the nucleus of an atom of electrons and their shells. From the word atomic itself, we can say that this energy is energy within and carried by the atoms.
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How will what move? What, exactly, are you asking?

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