Determine the hydrogen ion concentration in the water
Determine the Hydrogen ion concentration in the water in moles/L when 2g of sodium bicarbonate are added to distilled water and the pH is adjusted to pH 9 by the addition of a base.
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Suppose that the reaction takes at 345 K and 355 K. Discuss what must the activation energy be for the rate constant to double as described? The rate constant of some reactions double with every 10 degrees rise in temperature.
Determine how much energy is free in the explosion? Avoid effects due to the gravitational force.
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As the wind's strength gradually rises, the turbine experiences a constant angular acceleration of 0.170 rad/s2. After making 2801 revolutions, the angular speed is 132 rad/s. (i) Determine the initial angular velocity of the turbine?
Determine the change in internal energy of a system that absorbs 0.782 kJ of heat from its surroundings and has 0.235 kcal of work done on it?
If the centrifuge reaches an angular speed of 2.2 rad/s, the trainee undergoes a net acceleration equivalent to 4.9 times the acceleration due to gravity. (i) Determine how long is the arm of the centrifuge?
Determine the linear equation which provides maximum healthy weight y for person whose height is x inches over 4 feet 4 inches. x = 0 corresponds to 4 feet 4 inches and x = 8 to 5 feet,etc.
Determine the enthalpy change in the kJ when 27.0 g of water is cooled from 37.0 degree C to 7.30 degree C? Explain is the process endothermic or exothermic?
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