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Find the velocity of an electron emitted by a metal whose threshold frequency is 2.32×1014 when it is exposed to visible light of wavelength 5.10×10?7
How many grams of ammonia can be produced ? How much of the excess reactant is left over?
how many grams of sodium benzoate should be added to prepare the buffer?
Draw the products(if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide
Describe the experiment(s) (as necessary), observations (as necessary), and results (as necessary) which would allow you to distinguish between
Calculate the heat required to convert 25.0 g of C2Cl3F3 from a liquid at 5.00 degress celsius to a gas at 82.00 degrees celsius.
what is the molar mass of the protein? A solution of 7.50 mg of a small protein in 5.00 ml of aqueous solution has an osmotic pressure of 6.80 torr at 23.1 degrees celcius.
Predict the anode, cathode, and overall cell reactions when an aqueous solution of each of the following salts is electrolyzed in a cell having
If atmospheric pressure suddenly changes from 1.00 atm to 0.898 atm at 298 K, how much oxygen will be released from 3.10 L of water in an unsealed container?
Up to Iron "Fe", the number of proton and neutron are about equal, after Fe the number of neutron began to rapidly increase, with respect to the number of proton, why?
Why was cold deionized water added to the reaction mixture rather than hot water, and what is the purpose of acetic acid?
neutral compound show traces of an acid as an impurity wheras the acid might not show any traces of a neutral compound?
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
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