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If solid Potassium Hexacyanoferrate (III) is dissolved in water, what are the formulas of the two major species that are highest in concentration in this aqueous solution?
An ionic crystal unit cell is composed of two ions, X and Y. The empirical formula of this solid is XY2. If the X ions occupy the eight lattice points at the corners of the unit cell and on all six faces
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
What is the total pressure in a 20.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2?
Write a chemical reaction demonstrating that SO2 is an acidic oxide. c) Write balanced chemical reactions demonstrating that Al2O3 is amphoteric.
on december 1 1783 jacques charles became the first human topilot a non-tethered hydrogen balloon. he flew the balloon
The density of the hydrogen peroxide solution is 1.01 g/ml and the solution contains 3.40% H2O2 by mass. The vapor pressure of water at 24 celsius is 22mmHg. Based on this data and information calculate the molar volume at STP.
Write the net ionic equation describing the oxidation of mercury to HgO by O2 in a basic aqueous solution.
A buffer solution contains 0.23 mol of carbonic acid (H2CO3) and 0.55 mol of sodium hydrogen carbonate (NaHCO3) in 2.10 L. The Ka of carbonic acid (H2CO3) is Ka = 4.3e-07. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer af..
a miner working 260 m below sea level opened a carbonated soft drink during lunch break. to his surprise the soft drink
53.5 g of an ideal gas of molecular weight = 10.5 g/mol is confined at a pressure of 50 kPa. The density of the gas is 0.164 g/L. Compute the temperature of the gas in degrees Celsius.
an insulated container is used to hold 45.60g of water at 39.70 degrees celcius. a sample of copper weighing 8.50g is
Titration of the excess unreacted EDTA required 11.6 mL of 0.0200 M Ca2 . The Cd2 was displaced from EDTA by the addition of an excess of CN-.
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