Answer:Velocity, one of the most frequently used tools for evaluating pitchers, represents the maximum speed of a given pitch at any point from its release to the time it crosses home plate.
Explanation:Velocity, one of the most frequently used tools for evaluating pitchers, represents the maximum speed of a given pitch at any point from its release to the time it crosses home plate.
That would be the hydrosphere (It's easy to remember because Hydro means water)
Hope this helps
Answer: radio wave frequencies have longer wavelengths and smaller
Energies per photon
Ar is a substance that is a gas at room temperature and atmospheric pressure.
Answer:
2.78 x 10⁻² M
Explanation:
Step 1:
Data obtained from the question.
Volume = 225mL / 1000 = 0.225L
Mass of K₂SO₃•8H₂O = 1.89g
Molarity =..?
Step 2:
Determination of the number of mole of K₂SO₃•8H₂O
This is illustrated below:
Mass of K₂SO₃•8H₂O = 1.89g
Molar mass of K₂SO₃•8H₂O = (39x2) + 32 + (16x3) + 8[(2x1) + 16] = 78 + 32 + 48 + 8[18] = 302g/mol
Number of mole = Mass/Molar Mass
Number of mole of K₂SO₃•8H₂O = 1.89/302 = 6.26x10⁻² mole
Step 3:
Determination of the molarity.
Molarity = mole /Volume
Molarity = 6.26x10⁻² /0.225
Molarity = 2.78 x 10⁻² M
Therefore, the molarity of the solution is 2.78 x 10⁻² M
