Explanation:
First you must calculate the number of moles in this solution, by rearranging the equation. No. Moles (mol) = Molarity (M) x Volume (L) = 0.5 x 2. = 1 mol.
For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.
I think it’s (D) pressure
Answer:
Explanation:
stoichiometry is used in cooking because it helps you determine the amount or proportion of compounds you will need in a chemical reaction. Stoichiometry is present in daily life, even in the cooking recipes we make at home. The reactions depend on the compounds involved and how much of each compound is needed to determine the product that will result.
Potential difference is energy per coloumb of charge so energy = vq
energy = 1.5 * 9000 = 13500 J
The formula of ammonium carbonate is (NH4)2CO3
so as shown in the formula there are two moles of ammonium ion in each mole of ammonium carbonate .
Given : mass of ammonium carbonate = 6.955g
Molar mass of ammonium carbonate = 96 g / mol
Moles = mass / molar mass = 6.955 / 96 = 0.072 moles
So moles of ammonium ion = 2 X moles of ammonium carbonate
= 2X 0.072 = 0.144 moles