Concrete is formed of sand. Is it incorrect to suggest that some houses are built using concrete blocks?
Explanation:
We have to find the number of moles of N₂ that are present in a sample that has a volume of 40.0 L at STP.
STP means Standard Conditions of Temperature and Pressure. These conditions are 273.15 K and 1 atm. We know that 1 mol of N₂ will occupy 22.4 L. We can use that ratio to find the answer to our problem.
1 mol of N₂ = 22.4 L
moles of N₂ = 40.0 L * 1 mol/(22.4 L)
moles of N₂ = 1.79 mol
Answer: 1.79 moles of nitrogen are present.
An exothermic reaction is a type of chemical reaction in which energy is released to the environment in form of heat or light. Endothermic reaction in the other hand is a chemical reaction where energy is taken from the surroundings and thus the surroundings end up with less energy than they started with. In this case; the above reaction is an Exothermic reaction (heat is being released to the surroundings).
Answer:
218 "cubic inch" = 0.05238 "rundlets"
Explanation:
From the conversion factors;
1.00 gal = 231 in3 = 3.78 L
But;
1.00 rundlet = 6.81 × 104 mL = 68.1 L (Converting to L by dividing by 1000)
231 in3 = 3.78 L
218 in3 = x
x = (218 * 3.78 ) / 231
x = 3.5673L
But 1 rudlet = 68.1 L
x rundlet = 3.5673L
x = (3.5673 * 1 ) / 68.1
x = 0.05238