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laila [671]
3 years ago
11

Warm air lifted over a moving cold air mass will produce a front

Chemistry
2 answers:
valina [46]3 years ago
7 0

Answer:

Warm air lifted over a moving cold air mass will produce a cold front

crimeas [40]3 years ago
4 0

Answer:

cold

Warm air lifted over a moving cold air mass will produce a _____ front.

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How many moles of oxygen are necessary to completely react with propane (C3H8) to produce 16.3 mol of water according to the fol
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The balanced chemical reaction is expressed as:

<span>C3H8 + 5 O2 -> 3 CO2 + 4 H2O

We are given the amount of water produced. We use this amount for the calculations. We do as follows:

16.3 mol H2O ( 1 mol C3H8 / 4 mol H2O ) = 4.075 mol C3H8 needed

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What is the volume of a gas if 0.182 moles of the gas is at 1.99 atm and 83.4oC?
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Answer:

2.68 Liters

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ideal gas law

PV=NRT

to get the volume

rearrange the formula

V=nRT/P

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8.314 J/(mol K) (joules per mole kelvin)

T temperature part of this is in kelvin so you have to convert the Celsius temperature to kelvin

1 Celsius is 274.15 kelvin so

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P pressure is in Pascal or Pa units

so you have to convert atm into Pa

1 atm is 201636.8 Pa or Pascals so

1.99 atm is 201636.8 Pa

V volume will be in cubic meters or m^3

m^3 will need to changed to liters

1 cubic meter or m^3 is 1000 liters

n amount of substance is in moles

again the rearranged formula is

V=nRT/P

(0.182*8.314*356.55)/201636.8 =

0.00267566693 cubic meters or m^3

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2.67566693 liters

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I believe it is A because the plant is offering protection while the bacteria is converting it in to nitrogen that the plant can use!
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