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A solution that is 51.3% by weight CaCl2 in water has a density of 1.514 b/cm cubed at 25 C. what is the molarity (M) of CaCl2 (aq) solution and molality (m) of CaCl2 (aq) solution
What is the new HPO4^2-/H2PO4- ratio and new pH of solution? The pKa of H2PO4- is 6.64. Use henderson-hasselbach. C) Now take a fresh 60mL of the 0.50M pH of 6.83 buffer and add 3.7mL of 1.00M NaOH. Caclulate the new pH of the solution.
ignited with a sample of oxygen gas having a volume of 35.0 liters at 31oC and 1.25 atm to produce CO2 and H2O vapor. Calculate the volume of CO2 formed at a pressure of 2.50 atm and a temperature of 125oC.
Calculate the pH for an aqueous solution of acetic acid that contains 3.15 × 10-3 M hydronium ion.
the pressure on a 625 ml sample of gas is changed from .925 atm to 1.45 atm. what is the new sample of gas?
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
Calculate the concentration of all ionic species at equilibrium after adding 1 g sodium acetate to 0.1 L of a 0.1 M solution of acetic acid. Assume volume stays constant and conditions are at standard state
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
Calculate the number of grams of sulfuric acid in 0.440 of battery acid if the solution has a density of 1.34 and is 39.1 sulfuric acid by mass.
The equation for the combustion of acetone is: 2 C3H6O + 8 O2 ---> 6 H2O + 6 CO2 + 852.6 kcal How much heat will be given off if 0.87 mol of acetone is completely burned?
You are expected to design a car that works with photovoltaic panels. Assume that the driver is 75kg and the expected speed is 50km/hr.
Determine the concentrations of Ag+ and C2O4- in a saturated aqueous solution of Ag2C2O4. Ksp = 3.5 x 10-11
Given that the present flux of anthropogenic Na+ into the oceans is 3.39 x 1012 mol yr-1, how long would it take to increase the concentration of Na+
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