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There are two binary compounds of titanium and chlorine. One compound contains 31.04% titanium by mass, and the other contains 74.76 chlorine by mass. What are the ratios of titanium and chlorine atoms in the two compounds.
A groundwater sample is taken from a geologic formation containing various carbonate minerals (e.g., CaCO3, MgCO3, CaCO3•MgCO3, etc.) without exposing the water sample to the atmosphere.
A 10 ml sample of gastric juice was obtained from a patient several hours after a meal. The gastric juice was then titrated with 7.2 ml of 0.1 M NaOH to neutrality
The enthalpy of combustion of n-Butanol, and the enthalpies of formation of CO2(g) and H2O(l), are shown below. Use the information given to calculate the enthalpy of formation of n-Butanol
Write the equations for the ionization of 3-aminophenol. Would this substance be more soluble in water at pH 2.0 or pH 8.0? Would you expect this substance to be absorbed into the bloodstream in the stomach or the intestines?
calculate the pH of the buffer after the addition of 0.15 mL of 6M HCl based on the known value of Ka for acetic acid
A saturated aqueous solution of lead(II) iodate, Pb(IO3)2, contains 3.1 x 10-5 M Pb+2 at 25°C. Assuming an ideal solution, and assuming no reaction of the ions with water, calculate the Ksp of lead(II) iodate at that temperature.
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 9.00 102 mL of solution and then titrate the solution with 0.128 M NaOH.
one important application of reverse osmosis is the desalination of seawater. to extract pure water from seawater using
If the diameter of a sodium atom is 3.14×10-8 , how many sodium atoms would fit along a line exactly 2.00 inch long?
What is the reason for using a phase transfer catalyst? a)It is used to transfer the catalyst to the active site of the reaction b)It serves as a proton transfer agent which moves protons from a base to an acid c)It is a small molecule which attac..
A sample of an unknown biochemical compound is found to have a percent composition of 45.46% carbon, 7.63% hydrogen, 10.60% nitrogen and the balance oxygen. What is the empirical formula for this compound
Oxygen gas is commonly sold in 45.5 L steel containers at a pressure of 131 atm . What volume (in liters) would the gas occupy at a pressure of 1.06 atm if its temperature remained unchanged
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