Calculate the poh and the ph
calculate the pOH and the pH when 45.0mL of 3.00 mol/L potassium hydroxide solution is diluted by adding 100.0 mL of water.
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Prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 ºC). At equilibrium the concentration of mustard gas at equilibrium is 0.350 M. Calculate Kc.
Calculate the mass percent of a solution in which 176 of is dissolved in 3.08 of water at 25 (density = 0.997 ).
Calculate the number of moles of carbon monoxide released in the reaction, given that 1.40 mol of manganese were produced.
HCL acid solution is standardized using 0.502g of sodium carbonate. Find the molarity of the acid if 30.5mL are required for the titration.
Explain why if benzoic acid were substituted for 2-methoxyphenylacetic acid in this experiment the enantiomeric ratio of the yeast reduction product could not be determined by 1 H NMR.
Give the answer in cubic meters. how many grams of oxygen do we breathe in each day if air is 20.5% oxygen and the density of oxygen is 1.43 g/dm^3?
A 0.20 solution of is used to titrate 28.0 of a solution of unknown concentration. If 160mL of HCl is required what is the concentration in molarity of the Ca(OH)2 solution?
Calculate the amount of heat required to completely sublime 35.0 of solid dry ice at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3.
Calculate E when 770.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K.
A cylinder of compressed nitrogen gas contains 867 g N2. If the volume of the cylinder is 22.5 L, what is the pressure of the N2 if the gas temperature is 298K?
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