Answer:
Look it up on Google
Explanation:
it will tell you how much it is
Answer:
It is necessary for contracting muscles, forming and strengthening bones and teeth, conducting nerve impulses throughout the body, clotting blood, maintaining a normal heartbeat
Answer:
P = 5.14 atm
Explanation:
Given that,
Pressure of the gas, P = 0.108 mol
Temperature, T = 293 K
Volume, V = 0.505 L
We need to find the pressure of the gas. We know that, according to ideal gas equation,
PV = nRT
Where
P is pressure and R is gas constant
So, the pressure of the gas is equal to 5.14 atm.
Answer:
Amount of heat released when 25.0 g of (rubbing alcohol) is combusted equal to 98.7 kJ
Explanation:
According to balanced equation (as given in problem), combustion of 2 moles of rubbing alcohol release 474.28 kJ of heat.
Molar mass of (rubbing alcohol) = 60.095 g/mol
We know, number of moles of a compound is the ratio of mass to molar mass of that compound.
So, 2 moles of (rubbing alcohol) = (rubbing alcohol) = 120.19 g of (rubbing alcohol)
So, combustion of 120.19 g of rubbing alcohol release 474.28 kJ of heat.
Hence amount of heat released when 25.0 g of (rubbing alcohol) is combusted =