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Alex17521 [72]
3 years ago
10

Can anyone help me? I'm so confused.

Chemistry
2 answers:
Alenkasestr [34]3 years ago
7 0
Woah, that doesn't look like high school. That's gotta be college level.
nalin [4]3 years ago
5 0
Try changing the grade level on your answer maybe someone a little older would be better for helping with that good luck! :))
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Dfine chemical reaction​
allsm [11]

Answer:

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Explanation:

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2 years ago
How many moles of helium are needed to fill a balloon to a volume of 5.3 L at 22 ℃ and 632 mmHg?
son4ous [18]

Answer:

0.18 moles

Explanation:

Applying,

PV = nRT................... Equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.

make n the subject of the equation

n = PV/RT............... Equation 2

Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm,  R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.8316×5.3)/(0.083×295)

n = 0.18 moles

6 0
3 years ago
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Svetradugi [14.3K]
Your question looks a bit incomplete as you have the same contents in options a) and d). According to your list, I can't see the correct answer, but I can give you one.The difference between the potential energy of the products of the potential energy of the reactants is equal to the enthalpy of the reaction.
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2 years ago
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