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Provide a structure for the following compound: molecular mass 101; IR: 3397, 3200, 1655, 1622 cm-1; 13C NMR: ? 27.5, ? 38.0 (weak)
24.6g of a hydrated salt of MgSO4.XH20, gives 12.0g of anhydrous MgSO4 on heating. What is the value of x?
What is the molarity of the prepared naoh solution as determined in the titration? How many moles of OH are present when the end point is reached? What color should the solution appear at end point?
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
How many moles of BCl3 are needed to produce 25.0 g of HCl(aq) in the following reaction?
calculate the mole fraction of toluene in the solution that contains 126g toluene and 94g benzene
When .100 mole of a compound of carbon, hydrogen and nitrogen was burned completely in oxygen 26.4 g of co2 6.30g of h20 and 4.60 g of NO2 were produced What is the empirical formula
How many liters of ethane, measured at 15.0 degrees Celsius and 719 Torr, must be burned to liberate 2.89 X 10^4 kJ of heat?
Calculate the molality and molarity of an NH3 solution made up of 28.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Identify the limiting reagent and the volume of CO2 formed when 11L CS2 reacts with 18L O2 to produce CO2 gas and SO2 gas at STP.
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.26 M/s.
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+. a) Provide the hald cell reactions for each of the electrodes.
Hydrogen gas was collected by downward displacement of water. A volume of 0.600 L of gas was collected at 25.0 °C and 740.0 torr. What volume will the dry hydrogen occupy at STP? The vapor pressure of water is 21.2 torr at 25.0 °C.
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