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Suppose if you mix 20.50mL of a 0.393 M solution of K2CrO4 with 20.50mL of a 0.393 M solution of AgNO3, explain what mass of solid will form?
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water
explain the main concept behind the vsepr theory of molecular shape. how do both number and type of electron pairs
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
Nitrogen dioxide decomposes according to the reaction 2NO2(g) 2NO(g) + O2(g) where Kp = 4.48 × 10-13 at 25°C. What is the value for Kc?
In certain electrolysis experiment involving Al3+ ions, 57.0g of Al is recovered when a current of 0.352 A is used
The total Calories for 2 tablespoons of crunchy peanut butter that contains 6 of carbohydrate, 16 of fat, and 7 of protein
the mechanical properties of a metal may be improved by incorporating fine particles of its oxide. given that the
What concentration of CrO4-2 is needed to precipitate as much Ba+2 as possible without precipitating the Ca+2. (BaCrO4:Ksp=2.1x10^-10; CaCrO4:Ksp=7.1x10^-4)
the rate of a first order reaction is 4.6 x 10 to the -4 power at 638k. if the activation energy is 104 kjmol calculate
A student adds 0.1 mol of oxalic acid (H2C2O4) and 0.1mol of sodium dihydrogen phosphate to enough water to make 1.0L of solution. The following equilibrium is established with Kc from this reaction greater than 1
the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?
at a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
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