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You are given a 1.50g mixture of sodium nitrate and sodium chloride. You dissolve this mixture into 100 mL of water and then add an excess of 0.500 M silver nitrate solution. You produce a white solid, which you then collect, dry and measure. The white solid has a mass of 0.641g. a) if you had an extremely magnified view of the solution, list the species you would see b) write the balanced net ionic equation for the reaction that produces the solid. Include phases and charges. c) calculate the percent sodium chloride in the original unknown mixture.
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and in the production of aluminum metal. It is prepared by the reaction CaF2 + H2SO4 ---> CaSO2 + 2HF In one process,
Calculate the amount of water (in grams) that must be added to each of the following substances to produce the indicated solution 8.10g of urea(NH2)2CO in the preparation of 21.8 percent by mass solution 30.4g MgCl2 in the preparation of a 4.8 per..
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.00 nm in diameter? Take the m..
Give the products (if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Standard Temperature and Pressure of Chlorine, Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 240C.
what is the solubility of O2 at an elevation of 12,000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25°C, and that the mole fraction of O2 in air is 0.209 at both 12,000 ft and at sea level.
A 10 mL aliquot of a 10 M solution diluted to 250 mL A 25 mL aliquot of a 10 M solution diluted to 250 mL A 57 gram beaker that weighs 82 grams after NaCl is added transfers all of the NaCl into a 100 mL volumetric flask and dilutes it to the mark..
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
Calculate the pH of a solution made by mixing 2.0 M HF and 2.0 M HCN. Also calculate the concentration of CN- ion at equilibrium.
describe the crystal lattic structures you examined,indicating the number of positine ions surrounding each negative ion,and vice versa
sample of a 0.116M potassium sulfate solution is mixed with 38.5mL of a 0.126M lead(II) acetate solution and this precipitation reaction occurs:
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