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A 31.0 sample of an unknown H3PO4 solution is tritrated with a 0.120M NaOH solution. The equivalence point is reached when 26.43 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction is as follows:H3PO4(aq)+3NaOH(aq)= 3H2O(l)+Na3PO4(aq)
If 75.0 mL of 0.250 M HNO3 and 75.0 mL of 0.250 M KOH are mixed, what is the molarity of the salt in the resulting solution?
A sample of xenon gas collected at a pressure of 189 mm Hg and a temperature of 290 K has a mass of 110 grams. The volume of the sample is
How many moles of AlCl3 can be produced by letting 918 grams of HCl react?
What are the likely ground-state electron configurations of the following anions? Se2-, N-3
Data: SO2(g) + 1/2O2(g) => SO3(g) ?H = -99kJ Use the data above to calculate the standard enthalpy change for the reaction below. Reaction: 2SO3(g) => O2(g) + 2SO2(g) H
What is the molality of a solution of glucose that contains 48.0 g of C6H12O6 dissolved in 410.0 g of water? Use molar masses with at least as many significant figures as the data given.
The water level in a graduated cylinder initially at 220 rises to 279 after a piece of lead is submerged. What is the mass in grams of the lead.
Calculate the quantity of energy produced per gram of reactant for the fusion of H-3 (atomic mass = 3.016049 amu) with H-1 (atomic mass =1.007825 amu) to form He-4
Calculate the wavelength and frequency of an emitted gamma particle having the energy of 1.29x 10^11 J mol. Enter in scientiic notation.
How many joules of heat could be produced from a 170 calorie package of crackers
If sealed glass bottle containing an organic solvent is dropped and breaks, pieces of glass may be propelled outwards because of build-up pressure that forms in the bottle. explain which is more dangerous a liquid pentane or liquid decane
What mass of calcium metal could be obtained from one kg of limestone that is 50.0% pure CaCO3?
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