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When 2.56g of a compound containing only carbon, hydrogen, and oxygen is burned completely, 3.84g of CO2 and 1.05g of h20 are produced. What is the empirical formula of the compound?
A solution is made by dissolving 0.040 moles of the weak acid HA in water to make 1.00 L of a solution whose pH is 4.90. Calculate the Ka for the acid.
What is the concentration (molarity) of the solution prepared by dissolving 1.83g of Co(NO3)2 in HCl acid to give a total volume of 100 mL
A strip of electrolytically pure copper weighing 3.178 gram is strongly heated in a stream of oxygen until it is all converted to a black oxide. The resultant black powder weighs 3.978 g. What is the formula of the oxide?
Considering all the bonds in a molecule with trigonal bipyramidal geometry, what are the bond angles present
What is the half life of this reaction if the initial concentration is 1.40 M. b) Given this same starting concentration, calculate the concentration after 3 minutes. c) How long would it take for the starting concentration to reduce to 0.50 M?
What volume of 0.1000 M NaOH is required to titrate a 0.1000 M propionic acid solution, CH3CH2COOH, Ka = 1.3 x 10-5 , to the equivalence point?
what is the classification of each reactant as metal or nonmetal?
Calculate the concentration of each ion present in a solution that result from mixing 50 mL of a .20 M NaCLO3 solution with 25 ml of a .20 M Na2SO4. ASsume that the volumes are additive.
A 14.5 gram sample of gas is found to have a volume of 2.8 liters at 275 K and 1.10 atm. What is the molar mass of this gas?
An advantage of the hydroboration reaction is that the rearrangement of the carbon skeleton does not occur. This lack of migration contrasts with results obtained upon the addition of hydrogen chloride to the double bond. Offer an explanation why.
Which of the following are molecular solids and which are covalent solids. SO2, I2, P4, S8, H2O, SiO2
In the winter time, it is common to sprinkle NaCl on icy roads and driveways. Why is this done? Would calcium chloride be more or less effective
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