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Marianna [84]
4 years ago
9

PLEASE HELP!!!!! ASAP this is due tomorrow and I don't get it help me with some problems I'll be so thankful.

Chemistry
1 answer:
nydimaria [60]4 years ago
6 0
Try to search for the answer online!!!!!!!!
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The molecular scene depicts a gaseous equilibrium mixture at 460°C for the reaction of H2 (blue) and I2 (purple) to form HI. Eac
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How many grams of sodium make up 4.01×10^25 atoms
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4 years ago
2). A student collects 425 L of oxygen at a temperature of 24.0°C and a pressure
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Answer:

15.5 moles

Explanation:

Applying,

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

Where P = pressure, V = Volume, n = number of mole, R = molar gas constant, T = Temperature.

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From the question,

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Substitute these values into equation 2

n = (0.899×425)/(297×0.083)

n = 15.5 moles

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3 years ago
a student forgot to include the 12 h2o when calculating the formula mass of the compound. how will the calculated percent yield
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If the student fixes the compound mass, then the yield will become lower than the first result.
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When doing lab experiment you must always ,to prevent lab accient s?
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