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sp2606 [1]
3 years ago
7

/Please help me I will give you the brain thing with extra points if you help me, please. I need to get this right. 5/10

Chemistry
2 answers:
Nataliya [291]3 years ago
8 0

Answer:

The answer is A

Explanation:

larisa [96]3 years ago
5 0

Answer:

I believe the answer is A

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What is the molarity (M) of an 85.0-mL solution (total volume) containing 1.77 g of ethanol (C2H5OH)
Liono4ka [1.6K]

Answer: The molarity of solution is 0.453 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute

V_s = volume of solution in ml

moles of C_2H_5OH = \frac{\text {given mass}}{\text {Molar mass}}=\frac{1.77g}{46g/mol}=0.0385mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.0385\times 1000}{85.0}

Molarity=0.453

Therefore, the molarity of solution is 0.453 M

7 0
3 years ago
How many molecules of H2 will react with one molecule of the following triglyceride? CH2-O-C-(CH)14CH CH O-C-(CH)CH CH (CH)-CH C
disa [49]

Answer:

1

Explanation:

The full question is shown in the image attached.

If we look at the structure closely, we will discover that there is only one C=C double bond in the molecule.

It is worthy of note that hydrogen (H2) only reduces the C=C double bond. it does not affect any other bond in the molecule.

Hence, only one molecule of H2 is required to reduce one C=C bond present.

8 0
3 years ago
Will get brainlest and i with 10 points if right
Dima020 [189]

Answer: D

Explanation:

They form from Coal under high high pressure and many many years

4 0
3 years ago
What is the noble gas configuration for zirconium?
Mkey [24]

Answer:

[Kr] 4d² 5s²

Explanation:

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3 years ago
You run an experiment to test the effects of temperature on solubility. What would you heat? A.) solvent B.) solute C.) the room
taurus [48]
The most appropriate answer is A !!

As solvent temp is increased the solubility of solute increases !!
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3 years ago
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