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When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water
How many grams of sodium sulfide are formed if 2.50 g of hydrogen sulfide is bubbled into a solution containing 1.85 g of sodium hydroxide, assuming that the limiting reagent is completely consumed?
As protons transported into cell, ATP synthesis can be coupled to this process by ATP synthase. At 100% efficiency, under conditions above, how many proteins must be transported to synthesize one molecule of ATP?
If the cylinder is full of air at 72 C and 0.980 atm, how many moles of O2 are present. (The mole fraction of O2 in dry air is 0.2095.)
The reaction A=B+ C is second order in A. when [A}0=0.100M, the reaction is 20% complete in 35 minutes. Calculate the value of the rate constant in ( L/min.mol)
1 mole of a hydrocarbon of formula CnH2n was burned completely in oxygen producing carbon dioxide and water vapour only. It required 192 g of oxygen. Work out the formula of the hydrocarbon.
If a temperature scale were based on the freezing point (5.5 degrees celsius) and boiling point (80.1 degrees celsius) of benzene and the temperature difference between these points was divided into 50 units (called degrees X), what would be the f..
Identify the nuclide produced when americium-241 decays by alpha emission, 241 / 95 Am→ 4 / 2 He + ? Express your answer as an isotope using prescripts.
The freezing point of mercury is -38.8. Explain what quantity of energy, in joules, is released to the surroundings if 1.00mL mercury is cooled from 23.0? To -38.8? And then frozen to a solid? Explain the density of liquid mercury is 13.6 g/cm3.
What did you observe in the reactions of zinc with 4 different acids: HCL, H2SO4, H3PO4, and CH3COOH
What is the equilibrium constant for the reaction at 87 °C? (R = 8.314 x 10â€"3 kJ/K.mol)
Calculate the volume of H2(g) at 273 K and 2.00 atm that will be formed when 275Ml of 0.725 M HCl solution reacts with the excess Mg. Mg(s)+ 2HCl(aq)----> MgCl2(aq) + H2(g)
calculate the number of moles of potassium which combine with bromine to form KBr.
When aqueous HCl neutralizes benzoate anion, one of the actual acid species present is the hydronium ion, H3O+. Which is the more prevalent acid, HCl (pKa = -2.2) or H3O+ (pKa = 1.74). Write an equation that shows how H3O+ forms from HCl.
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