Write the equation for the reaction and balance it. In this case the equation is: 2NaOH + H2SO4 → Na2SO4 + 2H2O
Convert the given amount to moles. Molarity, “M” is moles per liter. The given amount is 25 ml of 1.2 M H2SO4. Since Molarity uses Liters, the volume must be converted from ml to L.
Use the mole ratio in this case 2 moles of NaOH to ! mole of H2SO4
Convert the moles to the required units. In this case the required units are grams. The formula weight in grams er mole.
25 ml H2SO4 * 1L/1000 ml * 1.2 Moles/L * 2 moles NaOH/1 mole H2SO4 * 40 g NaOH/ 1 Mole NaOH
Perform these calculations and you have the answer! Timothy, When doing homework, the answer is NOT the important thing, the METHOD is! These 4 steps, combined with required changes in units will sove ANY stoichiometric problem easily.
The lost of element arranged in order of increasing Atomic radii is 4) F, CI, Br, I.
The potential energy of the ball is 8 J.
<h3>What is mechanical energy?</h3>
Mechanical energy is given as the energy possessed by an object to do work. It is given as the sum of the kinetic energy and potential energy.
Mechanical energy = Kinetic energy + Potential energy
The given ball has:
- Mechanical energy = 25 J
- Kinetic energy = 17 J
The potential energy is given as;
25 J = 17 J + Potential energy
Potential energy = 25 J - 17 J
Potential energy = 8 J
The potential energy of the ball is 8 J.
Learn more about potential energy, here:
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Explanation:
Chromatography is a physical method of separation that distributes components to separate between two phases, one stationary (stationary phase), the other (the mobile phase) moving in a definite direction. The mobile phase is the phase that moves in a definite direction
