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a, The height of Niagra Falls is 51 meters. Calculate the Potential Energy of 1g of water at the top of the falls relative to the ground level. b,What would be the increase in temperature of the water if all Kinetic Energy were converted to heat.
A 90.0 g piece of hot iron is placed in a calorimeter containing 125 mL water at 19.8 degrees celcius. If the final temperature of both the water and the iron is 24.6 degrees celcius, what is the initial temperature of the hot iron?
Calculate the freezing point and boiling point of the solution. Kf benzene = 5.12 C/m Kb = 2.53 C/m
an antacid, contains CaCO3. If Tums is added to 20.0mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
In Complex III, electrons are transferred between ubiquinone and cytochrome c. Standard reduction potentials are, write a balanced equation for this reaction and calculate the overall cell potential and free energy change.
Your chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air? If you had a stoppered flask with basic luminol and then opened it to th..
How many grams of magnesium chloride could be formed from the reaction of 6.82 g of magnesium with excess HCl?
calculate the change in pH that occurs when 1.00 mmol of a strong acid is added to 100 mL of 0.0500 M CH3COOH
Determine q for the acid-base reaction, assuming that the liquids have densities of 1.00 g/mL and the same heat capacities as pure water.
Draw Lewis dot structures for each of the following molecules.
Show that the balanced equation obeys the law of conservation of mass.
NH3 is a weak base (Kb=1.8 x 10^-5) and so the salt NH4Cl acts as a weak acid. What is the PH of a solution that is 0.049 M in NH4Cl?
you are taking a walk when a bid mean dog growls and begins to chase you. The increased epinephrine will increase? a glycolysis in the liver b glycolysis in the muscle
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