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On a cool, rainy day, the barometric pressure is 730mmHg. Calculate the barometric pressure in centimeters of water (cmH2O). Density of Hg = 13.5g/ml; density of water = 1.00g/ml.
What wavelength of radiation must be used to eject electrons with a velocity of 1.5 X 10^3 km s-1
What would the molar concentration of the tree sap have to be to achieve this pressure on a day when the temperature is 28?
There are two carboxylic acid functions in 3-nitrophthalic acid. The pKa of the acid function is at the 2-position is approximately 2, whereas that at the 1- position is about 3. Which of the two is the more acidic and why
a basketball is inflated to 9.0 psi (pounds per inch) above atmosphere pressure of 14.7 psi ( a total pressure of 23.7 psi). The diameter of the basketball is 10 inches. What is the pressure of the air in the basketball, expressed in atmospheres?
The stock solution is 500 ?g/mL and you want to obtain a final concentration of 1?M. What volume of the stock solution do you need to make 10 milliliters of the 1 ?M solution? Also: What is the molar mass of PMA?
what mass of solid LiOH must be added to 1.0 L of 1.35 M hydrofluoric acid solution in order to create a buffer solution
Calculate the (a) weight fraction (b) mol fraction (c) mol percent of each component (d) mass of 5 moles of the mixture.
the thermochemical equation for the combustion of butane is c4h10g 132o2g --gt 4co2g 5h2ol delta h -2877kjwhat is
How to improve yield for methyl-m-nitrobenzoate from nitration of methyl benzoate experiment
The preparation of chlorobenzene by the reaction of chlorine with benzene occurs by the reaction C6H6 (l)+Cl2 (g)- ->C6H5Cl (l)+ HCl (g). If 52.6 g of benzene reacts with an excess of chlorine to give 51.6 g of chlorobenzene, what was the percent ..
An impure sample of sodium carbonate, (Na2CO3) is allowed to react by dissolving it in an aqueous solution of 0.134 M HCl, according to the following reaction:
Write equations for the dissociation of the following in water. Include physical states for all species.CaCl2
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