Answer:
ν = 1483.939 m/s
Explanation:
Wave propagation speed (ν):
∴ Wavelength ( λ ) = 4.25 m
∴ Period ( T ) = 1 / f
∴ frequency ( f ) = 349.2 Hz ( s-1 )
⇒ T = 1 / 349.2 s-1
⇒ T = 2.864 E-3 s
⇒ ν = (4.25 m) / (2.864 E-3 s)
⇒ ν = 1483.939 m/s
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
