The Ideal Gas Law states that pressure (P) × volume (V) is equal to the # of moles (n) of the gas × a constant (R) × temperature (T), such that the equation is:
PV = nRT
At standard temp and pressure (STP), the T is 0°C or 273.15K, the P is 1 atm or 760 torr, and the R constant is 0.0821. Therefore the equation, solved for V becomes: V = nRT/P, or V = n(0.0821)(273)/1, so that it reduces to V = 22.4 Liters, when n = 1 mole.
So the V of any gas at STP is 22.4 L / mole
Answer: acid; acidic
Explanation:
You have a glass of pure water and add acidic lemon juice to it. This means that you are adding ACID to it, and the solution will become ACIDIC.
Pure water has a pH value of 7
Lemon juice has a pH value less than 7 i.e acidic
Therefore, addition of lemon juice to pure water will drop the latter pH from 7 to form a final solution that is ACIDIC.
Explanation:
mass = no. of moles x molar mass (Mr)
i- mass = 10.2 mol x 30 g/mol
= 306 g
ii- mass of potassium hydroxide = 0.0146 mol x 56g/mol
= 0.8176g
mass of calcium hydroxide= 0.0146mol x 74 g/mol
= 1.0804g
Answer:
Meters
Explanation:
Meter is The basic unit of length (or distance) in the Metric System. The symbol is m.