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What is the relative concentration of propanoate (Ka=1.34E-5) at pH=5.000?
Question- Calculate the mass (g) of a sample of water that lost 25110 J of heat energy on going from an initial temperature of 16.5 °C to a final temperature of 8.10 °C.
The flashlight in the photo does not use batteries. Instead, you move a lever, which turns a geared mechanism and finally results in light from the bulb. What type of energy is used to move the lever? What type or types of energy are produced?
describe the octet rule in terms of noble gas configurations and potential
Which of the following pairs has about the same atomic radius?
Compute the weight of KClO3 that would be necessary to produce 39.52 liters of oxygen measured at 227C and 720. torr. 2KClO3(s)--->(heat)---> 2KCl(s) + 3O2(g)
a 52kg person is standing on a bathroom scale in an elevator moving upward. a if the scale reads 58kg what is the
depict the derivation of braggs law with your own drawings and commentary. what does the n represent in the equation?
A 14.0-g sample of ice at -18.0°C is mixed with 122.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Explain how the sponge nucleoside cytosine arabinoside and fungal nucleoside cordycepin combat cancer (give their structures as well).
Determine the mass of 100 mL of solution for each reaction (assume the density of each solution is 1.00 g/mL) - determine the temperature change, Δt, for each reaction.
How much ethylene glycol must be added to your car's cooling system along with 5.0 kg of water to obtain a freezing temperature of -15 oC. The freezing point depression constant of water
1. when performing a friedel-crafts alkylation reaction not only does one have the problemsnbspof multiple alkylation
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