Answer: The number of molecules of gas the flask contains is
Explanation:
According to ideal gas equation:
P = pressure of gas = 1 atm (STP)
V = Volume of gas = 2.50 L
n = number of moles = ?
R = gas constant =
T =temperature = 273K (STP)
According to Avogadro's law:
1 mole of gas at STP contains = molecules
Thus 0.112moles of gas at STP contains = molecules
The number of molecules of gas the flask contains is
D. 350 J
Explanation:
Given parameters:
Force of pull = 70N
Distance = 5m
Unknown:
Workdone on the box = ?
Solution:
Workdone is defined as the force applied on a body to move it through a distance.
Work done = Force x distance moved
Work done = 5 x 70 = 350J
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Answer:
d
Explanation:
bisector divides whole angle in half so it's 35 and 35
Answer:
Explanation:
tetraborate is the right answer
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12. Substances
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