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sashaice [31]
3 years ago
10

Identify the independent and dependent variables in the following experiment: A scientist grew bacteria on the gel in her lab. S

he wanted to find out if the bacteria would grow faster on gel A or gel B. She placed a few bacteria on gel A and a few on gel B. After 24 hours, she observed how many bacteria were present on each type of gel.
Chemistry
1 answer:
ddd [48]3 years ago
6 0
Can I get a thank you
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How many joules of heat are absorbed when 73 g water are heated from 30*C to 43*C? *
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A gas system has volume, moles and temperature of 9040 mL, 0.447 moles and -35.50 oC, respectively. What is the pressure in atm?
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Temperature of gas = -35.50^oC=237.5K       (0^oC=273K)

Using ideal gas equation,

PV=nRT

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V = volume of the gas

T = temperature of the gas

n = number of moles of gas

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P(9.040L)=(0.447moles)\times (0.0821Latm/moleK)\times (237.5K)

By rearranging the terms, we get

P=0.964atm

Therefore, the pressure of the gas is, 0.964 atm

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