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3 years ago

what is the molarity of a solution prepared by dissolving 20.0 g of NaOH in enough water to make 0.50 L og solution?

Chemistry

1 answer:

Alona [7]3 years ago

6 0

Answer:

Molarity of a solution = 1 mol / L

Explanation:

Given:

Amount of NaOH =20 g

Amount of water = 0.50 l

Find:

Molarity of a solution

Computation:

1 mol of NaOH = 40 g

So,

Moles of NaOH = 20 / 40 g = 0.50 mol NaOH

Molarity of a solution = moles of solute / Liters of solution

Molarity of a solution = 0.50 / 0.50

Molarity of a solution = 1 mol / L

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Provide the structures of the fragments that result when the molecular ion of 2-heptanone undergoes fragmentation via McLafferty

stiks02 [169]

Answer:

See explanation

Explanation:

We have to start, remembering the mechanism behind the McLafferty rearrangement. The hydrogen in the gamma carbon (in this case, carbon 5) would be removed by a heterolytic rupture due to the cation-radical placed in the oxygen of the carbonyl group. Then we will have several heterolytic ruptures. Between carbons alpha and beta (in this case, 4 and 3) and a rupture in the carbonyl group. Due to these ruptures, two double bonds would be formed. One double bond in the alcohol cation-radical and the other one in the alkene.

See figure 1

I hope it helps!

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3 years ago

What is the mass,in grams, of 2.75 L of CO2 gas

frez [133]

Answer:

mass of CO₂ = 5.402 g

Explanation:

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Therefore, 2.75 L = 2.75 mole ÷ 22.4 = 0.123 moles

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3 0

3 years ago

[CM.01] Which states of matter appear only in the hydrosphere?

vodomira [7]

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3 years ago

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Leokris [45]

Is it B................

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3 years ago

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What is the definition of bond length?

a_sh-v [17]

Answer:

C: No correct response

Explanation:

Bond length is simply defined as the distance between two atoms that are participating in a bond.

Now, looking at the options, none of the options correctly defines it this way. The closest is option E which is "distance between two electrons" but it uses the word electrons instead of atoms. Thus none of the statements are correct

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2 years ago