Answer:
The molarity of sodium chloride in sea water is 0.479 M
Explanation:
Step 1: Data given
Mass of NaCl = 28.0 grams
Molar mass NaCl = 58.44 g/mol
Step 2: Calculate moles
Moles NaCl = mass NaCl / molar mass NaCl
Moles NaCl = 28.0 grams / 58.44 g/mol
Moles NaCl = 0.479 moles
Step 3: Calculate molarity NaCl in sea water
Molarity = moles / volume
Molarity NaCl = 0.479 moles / 1L
Molarity of NaCl in sea water = 0.479 mol/L = 0.479 M
The molarity of sodium chloride in sea water is 0.479 M
The heavier the gas is, the slower the gas will diffuse. the correct order is Kr, Ar, Ne, N based off of the atomic weight. However I don't think N is a gas. Nitrogen is diatomic so it should be N₂.
I hope this helps.
Answer:
As there are many units of mass and volume covering many different magnitudes there are a large number of units for mass density in use. The SI unit of kilogram per cubic metre (kg/m3) and the cgs unit of gram per cubic centimetre (g/cm3) are probably the most commonly used units for density.
Explanation:
Mean: 17
Median:3
Average is mean, so it’s 17.
