Answer: True the dilution formula is a balanced of mole of the solute..
Explanation:
M1V1 = M2V2
When M1= 1.2M, M2= 0.25M V2= 1.4L and V1= ?
Then V1= 0.25*1.4/1.2
= 0.29
This indicate that 0.29L of the 1.2M NH4Cl will be dilluted to 0.25M in 1.4L of the solution....
The mole number of the solute remain constant
Answer: Option (C) is the correct answer.
Explanation:
A reaction in which two or more reactants combine to result in the formation of a single product is known as a synthesis reaction.
For example, is a synthesis reaction.
Whereas the number of moles of either nitrogen or oxygen is not given. Therefore, we cannot tell which reactant is in excess or not.
Thus, we can conclude that the statement, this is a synthesis reaction is the true statement.
Molar mass of Al2O3 = 101.961276 g/mol. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Al2O3, or 101.961276 grams.