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A titration of 50 mL of an unknown concentration of H2SO4 required 46.26mL of 0.1125 M NaOH. What is the molarity of the H2SO4 solution
Show how you would accomplish the following synthetic transformations
The procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is concentrated (19M ) NaOH solution. How many mL of water are needed to make 500mL of a 3.0M NaOH
Explain using Le Chatelier's principle the results obtained when 6.0 M NaOH was introduced into the iron (III) thiocyanate equilibrium.
dissolving 3.00 g of an impure sample of CaCo3 in an excess of HCl produced 0.656 L of CO2 (measured at 20 C and 792 torr) . Calculate the percent by mass of CaCO3 in the sample
The acid dissociaton constant Ka, for nitrous acd is 4.4x10^-4, what is the basicity constant Kb for the conjugaed base, nitrite, NO2-? HNO2+H20 H3O+ +NO2-
sand and iron particles that are similar in size and color are mixed together in a beaker. what would be the best method of separating the particles?
If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.3*1.0 ft. , what is the average thickness of the sheet in meters?
What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.
The heat capacity of bomb calorimeters are determined by running a known, standard reaction. The combustion of 1.700 mmol of X caused the temperature of a bomb calorimter to rise from 23.650 oC to 26.350 oC.
During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution.
how many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of NiSO4 for 90 minutes.
The pH at the ¼ neutralized point in the titration of a weak acid is 3.958. What is the pKa of this acid
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