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spin [16.1K]
2 years ago
9

When a substance is heated ,the kinetic energy of its molecules

Chemistry
1 answer:
Simora [160]2 years ago
5 0

Answer:

When a substance is heated ,the kinetic energy of its molecules also increase.

Explanation:

K.E is directly proportional to T

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Why is it not possible to directly count the number of particles in a mole?
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Answer: because a mole is based on Avogrado's number,  which is 6.02 x 10²³ particles. It isn't possible to directly count that many particles at a time.

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If an atom can form more than one cation, the cation with the lowest charge ends with which set of letters?
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Answer:

Answer is A 

Explanation:

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How many liters of hydrogen gas are formed from the complete reaction of 1.03 mol of C? Assume that the hydrogen gas is collecte
aliina [53]

Answer:

27 liters of hydrogen gas will be formed

Explanation:

Step 1: Data given

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Pressure H2 = 1.0 atm

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Step 2: The balanced equation

C +H20 → CO + H2

Step 3: Calculate moles H2

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For 1.03 moles C we'll have 1.03 moles H2

Step 4: Calculate volume H2

p*V = n*R*T

⇒with p = the pressure of the H2 gas = 1.0 atm

⇒with V = the volume of H2 gas = TO BE DETERMINED

⇒with n = the number of moles H2 gas = 1.03 moles

⇒with R = the gas constant = 0.08206 L*Atm/mol*K

⇒with T = the temperature = 319 K

V = (n*R*T)/p

V = (1.03 * 0.08206 *319) / 1

V = 27 L

27 liters of hydrogen gas will be formed

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