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solubility of ammonium permanganate is 7.90g/100mL of water. 29.0g of ammonium permenganate are placed in container and 22mL of water are added. The liquid is allowed to stand in contact with the solid until equilibrium is achieved and then the liquid is poured off. What is the mass of solid remaining?
A bottle containing 345 g of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
An automobile gasoline tank holds 22kg of gasoline. When the gasoline burns, 85kg of oxygen is consumed & carbon dioxide & water are produced? What is the total combined mass of carbon dioxide & water that is produced?
How many possible isomers could exist for diacetylferrocene? Explain. Calculate the volume of 3M aqueous sodium hydroxide needed to neutralize the acetic and phosphoric acids in the synthesis of acetylferrocene?
a 14.0 g sample of iron was heated from 10.0C to 20.0C it absorbed 15.2 of energy as heat based on this data what is the specific heat of this piece of iron?
If a 190 mg piece of gold (density =19.32 g/cm^3) is hammered into a sheet measuring 2.1*1.0 ft, what is the average thickness of the sheet in meters?
A 1.45 g sample of an iron ore is dissolved in acid and the iron obtained is (aq). To titrate the solution, 21.6 mL of 0.102 M KMnO4(aq) is required. What is the percent of iron in the ore? Hint: calculate moles of iron then mass of iron then % ir..
Trees in cold climates may be subjected to temperatures as low as -60 C. Estimate the concentration of an aqueous solution in the body of the tree that would remain
Using as sample of gas of 12.0 moles are in a tank of 8.00 Litres at the temperature of 22.6 degree celsius. compute the difference in pressure between CH 4 and an ideal gas under these conditions
A gas occupies 14.5L at a pressure of .526 atm. What is the volume when the pressure is increased to .780 atm?
27.5 grams of hydrogen chloride is dissolved into 70.0 ml of water. Calculate the mole fraction for the hydrogen chloride that is dissolved in the water.
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 490?
Either bulb will be used for 2,000 hours per year at an electricity cost of $0.14/kwh (kilowatt-hour). If the interest rate is 6%, which bulb is more cost effective over 8,000 hours of use based upon a comparision of Net Present Values?
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