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Consider the reaction of sulphuric acid, H2SO4, with sodium hydroxide, NaOH.
H2SO4 (aq) + 2NaOH (aq) ---> 2H2O (l) + Na2SO4 (aq)
Suppose a beaker contains 38.4 ml of 0.188 M H2SO4. How many ml of 0.332 M NaOH must be added to react completely with sulphuric acid?
An empty flask's mass is 17.4916g, its mass is 43.9616g when filled with water at 20.0c (d=0.9982g/ml). The density of "heavey water" at 20c is 1.1053g/ml. What is the mass of the flask when filled with heavy water at 20.0c
There are three possible arrangements of atoms and nonbonding pairs of electrons for the AB3N2 geometry. assuming that the effects of the relative strengths of different type of electron repulsions given in the background information
What is the pH of a sulfadiazine sodium solution containing 0.5 M of the drug in 1000 mL of solution?
electrons are ejected with a kinetic energy of 3.54x10^-19 J. What is the work function of the metal in joules?
Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC Delta T to calculate the temperature change of the 304 g of water.
At 25oC, the acid dissociation constant for hypochlorous acid HOCl is 3.5E-8. Calculate the concentration of the hydronium ion in an aqueous solution of 0.30M HOCl.
The specific heat of ethanol is 2.46 J/goC. Find the heat energy required to raise the temperature of 193 g of ethanol from 19oC to 35oC.
With regard to the solutions you discarded in this experiment identify the compounds in the filtrate discarded in step 19.
Consider the mechanism of reduction of WO3. At least two mechamisms are possible to the formation of HxWO3 during intercalation of WO3
A diet soda contains 0.5% sodium, 0.25% potassium and 0.6% aspartame. Can you please show me how to calculate how many grams of each you would consume by drinking a 100 mL can of soda.
A chemist wants to make 6.0L of a .350M CaCl_2 solution. What mass of CaCl_2 should the chemist use?
Important information about Nitration, Explain why nitration of 1,4-dichloro-benzene yields the mononitro derivative while N,N'-diacetyl-1,4-phenylenediamine forms
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