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Nitric acid is gernerated by the action of sulfuric acid on sodium nitrate. Nitrous acid is prepared by the action of hydrochloric acid on sodium nitrite. Why is nitrous acid prepared in situ rather than obtained from the reagent self.
it has been estimated that halleys comet has a mass of 1 x 110 tons. This comet is estimated to lose 1x 80 tons of material each time its orbit brings it close to the sun. With an ordital period of 76 years, what is the maximum remaining life span..
How long will it take for all of the strontium 90 presently on the earth to be reduced to 1/32nd of its present amount?
Calculate the molarity of a solution made by adding 23.9 mL of concentrated potassium hydroxide (34.5 % by mass, density 1.46 g/mL) to some water in a volumetric flask
A water carbonating plant operates by providing carbon dioxide at 5.0 atm. Estimate the molar concentration of CO2 in carbonated water it produces at 25 ºC.
Assume you have a mixture of gases that contains 3.50 L of helium, some argon at 1.03 atm, and some neon at 27 degrees C. For which gas(es)
Estimate the average spacing between water molecules in liquid water by making use of 2 pieces of information: (a) liquid water has a density of 1 g/cm^3
306 mL of a .208 M solution of silver nitrate will react with 146mL of a .170 M solution of sodium phosphate to produce how many grams of silver phosphate precipitate?
the following compounds in order of increasing boiling point, and give reasons for your answer.
An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed.
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 58.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
The question is a slab of steel measures 1.01m x 3.72m x 11.1cm. Steel has a density of 7.86g/cm^3. What is the mass of the slab of steel?
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