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The solubility of strontium fluoride (SrF2) in water is 111.5 mg/L. What is Ksp for strontium fluoride (molar mass = 125.62 g)?
How many moles of O2 are needed to consume 0.52 mol of Mg in the following unbalanced reaction? Mg plus O2 -> MgO
calculate the number of tons of carbon dioxide and sulfur dioxide produced by the plant during the year. (b) If 55% of SO2 could be removed by reaction with powdered CaO to form CaSO3, how many tons of CaSO3 would be produced.
Calculate the final temperature of 33 mL of ethanol initially at 13 degrees Celsius upon absorption of 657 J of heat. (density of ethanol =0.789 g/mL).
The system CO2(g) + H2(g) *) H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO.
A sample containing 2.40 {rm moles} neon gas has a volume of 8.00 {rm L}. Assume that the pressure and the temperature remain constant.
What is the molarity of an NaCl solution prepared by dissolving 9.3g NaCl in sufficient water to give 350mL of solution.
1)WhenH2(g)reacts withC2H4(g)to formC2H6(g),137kJ of energy areevolvedfor each mole ofH2(g)that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
Compute the volume of 3M NaOH(aq)aqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in the synthesis of acetyl-ferrocene.
How many grams of water can be cooled from 54.7 ? to 43.1? by the evaporation of 19.7 g of water? The heat of vaporization of water in this temperature range is 2.40 kJ/g
How many liters of CO2 are produced when 15 liters of O2 are consumed
Consider a cylinder filled with air with a piston and spring arrangement on top. The external pressure is 1 bar, the initial temperature of the air in the cylinder is 25 C.
Examination of the product mixture revealed that only about half of the starting material had been consumed and practically no PhCOCHBrCH3 was present. Explain these observations and draw the product that did form in the reaction.
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