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A copper cube measuring 1.55cm on edge and an aluminum cube measuring 1.62 cm on edge are both heated to 55 oC and submerged in 100.0mL of water at 22.2 oC. What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
What mass of carbon dioxide (in kg) is produced upon the complete combustion of a typical tank of propane containi 18.9 L. The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
Calculate pH and the concentration of acetate ion resulting from the mixtureof 400ml of 0.1M formic acid and 100ml 0.1 sodium acetate.
The partial pressure of CO2 inside a bottle of soft drink is 4.0 atm at 25°C. The solubility of CO2 is 0.12 mol/L. When the bottle is opened, the partial pressure drops to 3.0 * 10-4 atm. What is the solubility of CO2 in the open drink? Express yo..
A chemical process is designed to produce ethylene from ethane according to the reaction: C2H6 (ethane) ? C2H4 (ethylene) + H2 The fresh feed to the process contains pure ethane at a flowrate of 100 mole/min. The fresh feed is mixed with a recycl..
What is the net ionic equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form potassium
consider the following mixtures. in each case either calculate the pH if the resulting solution is a buffer solution or state why the solution does
What is the magnitude of the change in pH when 1.8 g of NaOH is added to 1.00 L of a solution that is0.100 M in NH4Cl
A balloon filled with 2.50 moles of helium has a volume of 32.4 L. What will be the new volume if 5.90 moles are added under constant temperature and pressure?
At 72.0%u2218C , what is the maximum value of the reaction quotient, Q, needed to produce a non-negative E value for the reaction
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
549 mL of hydrochloric acid is exactly neutralized with 292 mL 0.450 M calcium hydroxide solution. What is the concentration of the acid solution?
The emulsifying agent from hand cream, a salt, is prepared from two chemicals. Write the structure of stearic acid.
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