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In digital communications, how can the confidentiality of a transmitted message be ensured? Would any process to ensure confidentiality automatically also ensure authentication of the message? Why or why not?
Consider a chemical reaction that does 0.56 kJ of work and increases the internal energy by 7.3 kJ. What is the total heat flow? Please answer in J.
Question- Write (reduced) balanced equations for each of the following by inserting the correct coefficients in the blanks. (Use the lowest possible coefficients.)
In each case, decide if the change is a chemical or physical change. A cup of household bleach changes the color of your favorite T-shirt from purple to pink.
What is the volume of a solution prepared by adding 0.38 moles of NaCI to enough water to make a 0.82 M solution?
The pressure of the gas is lowered and its temperature is raised until its volume is 3.6 L. Find the density of the CO under the new conditions.
prepare a PH = 4.00 buffer staring from 1.50 L of 0.0200 M solution of benzoic acid (c6h5cooh) and an excess of sodium benzoate
what is the mass in milligrams of solute in 656 ml of solution that contains 4.96 ppm
Liquid water and nitrogen monoxide gas are produced from the reaction of 22.7 grams of ammonia gas with 53 grams of oxygen gas. 36.0 grams of water were measured at the end of the reaction. What mass of nitrogen monoxide gas was produced from the ..
How many grams of titanium tetrachloride can be produced?
1.464 g of an unknown hydrocarbon (112.6 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.234 kJ/ºC and ?T =5.744 ºC. Find ?E for this hydrocarbon in kJ/mol.
The reaction X + Y ? products was studied using the method of initial rates. What is the value of the rate constant, k
A 750 ml sample of hydrogen exerts a pressure of 822 torr at 325 K. What pressure does it exert if the temperature is raised to 475 K at constant volume?
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