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If 1.13 x 104J of heat is added to a water sample and the temperature rises from 88.0c to its boiling point, what mass of water is in the sample?
When sodium chloride is added to the solution, no precipitate forms. when sodium sulfate is added, a precipitate forms. this precipitate is filtered of and sodium carbonate is added to the solution
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2 /H3O . Draw the structure of the alkyne (containing only carbon and hydrogen atoms).
How many milliliters of 0.105 M HCl are needed to completely neutralize 60.0 mL of 0.108 M Ba(OH)2 solution?
How do you determine the number of protons and neutrons in an atoms' nucleus and the number of electrons in its first and second shells?
Hydrazine (N2H4) and dinitrogen tetroxide ignite on contact to form nitrogen gas and water vapor. How many grams of nitrogen gas form when 1.00 X 102 grams of N2H4 and 2.00 X 102 grams of N2O4 are mixed
calculate the minimum number of grams of propane that must be combusted to provide the energy necessary to convert
how many grams of calcium hydroxcide will be formed in this reaction when 4.44 grams of calcium oxide and 7.77 grams of
Compute the ΔH for this reaction and express your answer in kilojoules if the given . Bond Energies (kJ/mol) are N-Cl 201 , Cl-Cl 243 , N-H 389 ,H-Cl 431
Calculate the number of moles and molality of the solution prepared by dissolving 4.00g of NaOH in 250.0g of water.
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
Calculate the number of liters occupied at STP: a. 1.7 mol H2(g); b. 1.8 x 10-2 mol N2(g); c. 2.5 x 10(2) mol O2(g)
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
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