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Aluminum metal (2.02 g) reacts with 1.71 L of chlorine gas at 27 C and 912 mm Hg to produce 3.51 g of aluminum chloride. Determine the percent yield for this reaction.
When 1.0 g of NaOH is dissolved in this same calorimeter the temperature raises by 1.6 C. Calculate the calorimeter constant and enthalpy for one mole of NaOH.
Word equations and balanced chemical equations for the burning of carbon and burning of sulphur
Calculate the partial pressure of each gas. PHe = WebAssign will check your answer for the correct number of significant figures. atm PNe = WebAssign will check your answer for the correct number of significant figures
Burning coal yields about 30 . 106 J of energy per kg of coal burned. Assuming that the coal power plant is 30% efficient, how much coal has to be burned
Problem- a) A buffer is created by adding 0.20 moles of Acetic Acid (Ka= 1.7X10^-5) and 0.15 moles of Sodium acetate to a 1.00 L container. What is the pH of the buffer
based off of pka values of 10 for phenol and 6.4 for carbonic acid would sodium bicarbonate be a suitable base for
Write a balanced net equation for the reaction of Na2S with water. writing a net equation, and sodium ions are spectator ions.
What is the osmotic pressure of a solution made from dissolving 85.0g of glucose in 800ml of water at 19.0 C.
The analysis of oil from a reciprocation aircraft engine showed a copper content of 8.53 μg Cu/mL. Calculate the 90% and 99% confidence intervals of the results if it was based on (a) a single analysis, (b) the mean of four analyses, (c) the mean ..
How many milligrams of Ni would be plated on the cathode if a current of 0.20 A is drawn for 2.8 hrs? mg Ni b) What is [Cr3+] when [Ni2+] has dropped to 10-4 M? [Cr3+] = c) What is the cell potential at the conditions described in Part b E = V
At equilibrium system contains 1.00 mol N2 and 1.38 mol H2 and 0.200 mol NH3 in a2.0 litter container. Define what is the value of K
How much energy is released when 32.4 g of water freezes? The heat of fusion for water is 6.02 kJ/mol.
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