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You are given solutions of HCl and NaOH and must determine their concentrations. You use 26.8 mL of NaOH to titrate 100. mL of HCl and 18.6 mL of NaOH to titrate 50.0 mL of 0.0818 M H2SO4. Find the unknown concentrations.
How many grams of pure solid PbCl2 could be formed from the reaction of 5.176 g of lead with excess HCl?
The theoretical yeild of Ni(NH3)6Cl2 moles must be calculated as well as the theoretical yield of Ni(NH3)6Cl2 grams. How do you find the limiting reagent to calculate the theoretical yield.
A first order reaction has an activation energy of 65.7 kJ/mol and a frequency factor (Arrhenius constant) of 2.36 x 1013 sec -1. Calculate the rate constant at 18 oC
Using the de Broglie wave equation, calculate the speed, in m/s, at which an electron must travel to have a wavelength of 25.0 pm?
Write a balanced half-reaction describing the oxidation of gaseous dihydrogen to aqueous hydrogen cations.
Suppose a bone from an ancient human contains 17.5% of the {rm C}-14 found in living organisms. How old is the bone?
Some sugar substitutes are made from derivatives of sucrose. SucraloseTM is a sweetener found in soft drinks and low-calorie foods such as yogurt.
For the fractional distillation, a mixture hexane (b.p.=69) and toluene (b.p.=110.6) is used. a. Sketch a temperature versus volume diagram. Would it be a negative slope because the more volume of a substance you gave the higher bp
How many liters of softened water, containing a sodium concentration of 4.0×10-2% sodium by mass, have to be consumed to exceed the FDA recommendation
Calculate the equilibrium constant for the reduction of bismuth from the Bi(III) tetrachloro ion to the elemental metal.
Liquid butane C4H10 , the fuel used in many disposable lighters, has delta Hfinal=-147.5 kj and a density of 0.579 g/ml . Use Hess's law to calculate the enthalpy of combustion in kJ/mol.
the amount of product (3.80 mol P2O5) formed from the given amount of phosphorus and excess oxygen. In Part B, you found the amount of product (3.40 mol P2O5) formed from the given amount of oxygen and excess phosphorus.
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