3 years ago

How is the AHfusion used to calculate the energy required to vaporize a

Chemistry

1 answer:

faust18 [17]3 years ago

4 0

Hope u do well :) ik this maybe hard but you’ll get through it , the answer is D !

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What is the ph for hcl and ch3cooh?

Maurinko [17]

HCL - 3.01
CH3COOH -2.4

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3 years ago

HELP!! BEST ANSWER GETS BRAINLIEST!!

vampirchik [111]

<span> The anwser is D. Radiation, because it can travel thru air.</span>

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3 years ago

How much energy (kJ) is required to change 0.18 mole of ice (s) at 0 C to water (l) at 0 C?

Dmitriy789 [7]

Answer:25,06 kJ of energy must be added to a 75 g block of ice.

ΔHfusion(H₂O) = 6,01 kJ/mol.

T(H₂O) = 0°C.

m(H₂O) = 75 g.

n(H₂O) = m(H₂O) ÷ M(H₂O).

n(H₂O) = 75 g ÷ 18 g/mol.

n(H₂O) = 4,17 mol.

Q = ΔHfusion(H₂O) · n(H₂O)

Q = 6,01 kJ/mol · 4,17 mol

Q = 25,06 kJ.

Explanation:

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3 years ago

PLSSS HELP FAST

Aliun [14]

Note the formula

$\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}$

For X:-

No of protons:-

$\\ \sf\longmapsto 19-10=9protons$

It is Fluorine.

For Y:-

No of protons:-

$\\ \sf\longmapsto 16-8=8protons$

It is Oxygen.

Option D is correct

7 0

2 years ago

Find the pH of a solution whose H concentration is 0.7 x 10-3.

dexar [7]

Answer: pH = 3.15

Explanation: Solved in the attached picture.

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