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Finding the pH of a solution.
What is the pH of a solution obtained by adding 25.0mL of 0.125 M rubidium hydroxide, RbOH, to 35.0mL of 0.027 M barium hydroxide, Ba(OH)2? Suppose that volumes are additive.
pH = ____________
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Carbonic acid (H2CO3) is a diprotic acid withKa1 = 4.2×10-7and Ka2 = 4.8×10-11. Theion product for water is Kw = 1.0 × 10-14. What is the carbonate ion concentration[CO2-3] in a 0.037 M carbonic acid solution?
Using the following data, calculate the pressure of 1.00mol of Ar(g) in a 40.0L container at 25 degrees Celcius using both the ideal gas equation and the real gas equation. Why are these two values so different? (aAr=136 ...
A soil analysis was done for the exchangeable cations in the soil and the results were as follows:Ca = 1.8 g/kg (atomic wt. Calcium is 40 g/mol)Mg = 3.25 cmolK = 3 cmolNa = 0.230 g/kg (atomic wt. of Na is 23 g/mol)H = 9 ...
How much water must be added to a 50.0 ml solution of 0.60 M HNO 3 to produce a 0.40 M solution of HNO 3 ?
At 518°C, the rate of decomposition of a sample of gaseous acetaldehyde, initially at a pressure of 363 Torr, was 1.07 Torr s-1 when 5.0% had reacted and 0.76 Torr s-1 when 20.0% had reacted. If the reaction rate is prop ...
1) What is the mass of 38 molecules of SO 3 in g? 2) What volume in L of chlorine at 30 o C and 743 torr is required to react completely with 4.76 g aluminum: 2Al(s) + 3Cl 2 (g) → 2AlCl 3 (s) Calculate the moles chlorin ...
A ground state H-atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energylevel. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to ret ...
Determine the percent yield(with respect to CO2 and CH4) of the reaction if 1.25g of CO2 was formed by reacting 2.50g of CH4(g) with excess O2 in the reaction: CH4(G) +O2(g) ---->CO2(g) +H2O(g).
Using the following data, calculate the pressure of 100.0mol of CO(g) in a 40.0L container at 25 degrees Celcius using both the ideal gas equation and the real gas equation. Why are these two values so different? (aCO=14 ...
Dr. Pepper has 40.0g of sugar per 12 oz. of liquid. Calculate the molarity of this solution. Put that molarity into your regression line and calculate the density (all other things being equal) of this sugar solution. Sh ...
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