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A 13-g sample of calcium reacts with bromine to form 24g of calcium bromide. How many grams of bromine are used in the reaction?
When she introduced 3.63E-2 moles of N2(g) and 6.18E-2 moles of H2(g) into a 1.00 Liter container, she found the equilibrium concentration of NH3(g) to be 9.68E-4 M.
At a temperature of 395*C and a pressure of 705 mmHg, how many grams of NH3 can be produced when 3.80 L of NO2 react?
What is the entropy change if two mole of liquid water is heated from 20 C to 100 C under constant pressure? Cp=75.5 J/mol*K over this temperature interval
Compute the activation energy for this reaction when The half-lives were found to be 161 min at 199 Celsius and 12.5 min at 230 celsius? The isomerization of methyl isocynide follows first order kinetics.
A 0.221 g pellet of potassium hydroxide,KOH, is added to 52.2 g water in a Styrofoam coffee cup. The water temperature rises from 23.5 to 24.4 °C.
In an acid/base titration, knowing that it took 13.14 mili litres of 0.1016 M sodium hydroxide, NaOH to reach the first endpoint of the titration,) from this information, mols of Phosphoric acid present in the sample is 1.335 mols.
A copper cube measuring 1.58cm on edge and an aluminum cube measuring 1.68cm on edge are both heated to 56.4 degrees C and submerged in 100.0mL of water at 21.6 degrees C. What is the final temperature of the water when equilibrium is reached? (As..
if each reactant molecule in the above image represents 0.0157 mol and the reaction yields is 89%, how many grams of Si-containing product form?
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
Solids do not "flow". What does this behavior imply about the speeds at which the individual solid particles are moving relative to each other?
A 2.067-g sample of a monoprotic acid was dissolved in water. It took 25.24 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
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