Answer:
0.00714 g
Explanation:
We know that the volume of one mole of a substance is 22400 cm^3
Thus;
1 mole of sulphur occupies 22400 cm^3
x moles of sulphur occupies 5.0 cm3
x = 5.0 cm3 * 1 mole/22400 cm^3
x = 2.23 * 10^-4 moles
Molar mass of sulphur = 32 g/mol
Mass of sulphur = 2.23 * 10^-4 moles * 32 g/mol
Mass of sulphur = 0.00714 g
1. exercise because you are using exercise to affect the amount of concentration. 2. concentration because concentration is what is being measured
M
350 mL = 0.350 L
245.0g H2SO4 / 98.08 g/mol H2SO4
= 2.5 mol H2SO4
2.5 mol H2SO4 / 0.350 L = 7.14 M
Ammonia is a weak base and when reacts with acid forms neutral salt
NH3+HCL= NH4Cl
They have same chemical properties
for example the elements of group VIII are called noble gases .They are unreactive, odorless and colorless.