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If 37.5 mL of 0.274 M HCl solution is needed to neutralize an aqueous solution of calcium hydroxide, how manygrams of calcium hydroxide must be in the solution prior to the initiation of the titration experiment?
A 10.00 ml sample of 0.254 M H2SO4 is titrated with 0.385 M NaOH. What volume of the NaOH solution, in mL, is required?
A particular voltaic cell operates on the reaction below, giving an emf of 0.865 V. Calculate the maximum electrical work generated when 20.0 g of zinc metal is consumed. Zn(s) + CI2(g) ? Zn2+(aq) + 2 Cl ?(aq)
Justify your answer by calculating the changes in the vapor pressure of pure water vs. salty water at 100 °C. Assume you add 100.0 g of salt to 1.00 liter (1000 mL) of water. Vapor pressure of pure water is 760 mmHg. Assume density of water as 1 g..
Suppose an ice cube weighing 44.7 g at a temperature of -4 degree celcius is placed in 550 grams of water at a temperature of 23 degrees celcius.
The small bubbles that form on the bottom of a water pot that isbeing heated (before boiling) are due to dissolved air coming outof solution.
The surrounding solution has a mass of 1298 and its temperature is changed by 12.7 . If the specific heat is assumed to be 4.18 , calculate the change in heat for the surroundings.
Calculate the equilibrium constant, Ke, for the reaction assuming the concentrations for reactants and products are the following
a monolayer of N2 molecules (effective area 0.165 nm2) is adsorbed on the surface of 1.00 gm of Fe/Al2O3 catalyst at 77K,the boiling point of liquid nitrogen. Upon warming the nitrogen occupies 2.86 cm3 at 0 degree celsius and 760 torr. What is th..
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84 {\rm J}/{\rm g} ^\circ {\rm C}. q=?kJ
You obtain an unknown acid. You weigh out .856 grams of it and dissolve it in 45mL of water. You titrate it with 27.4mL of .5 M NaOH. What is the equivalent weight of the unknown acid
Showing only Valence electrons, write an equation for the reaction that occurs between sodium, Na
The mass spectrum of an organic compound shows the relative abundances of M to be 83.79% and M 1 to be 13.59%. Assuming the peaks are caused by 12C and 13C isotopes,
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