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A solution of ammonia and water contains 3.30×1025 water molecules and 7.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
suppose 50.0 ml of 0.25 m cocl2 solution is add to 25.0ml of 0.350 m nicl2 solution calculate the concentration in
The entropy of sublimation of a certain compound is 7.2 J / K mol at its normal sublimation point of 76 C. Calculate the vapour pressure in torr of the compound at 28 C.
The weight of your 1285-kg car is supported equally by its four tires, each inflated to a gauge pressure of 36.0 lb/in2. What is the area of contact each tire makes with the road?
A metallic object to be plated in copper is placed in a solution of CuSO4. What mass of copper will be deposited on the object if a current of 0.22 amps flows through the cell for 1.5 hours
Draw the structure of the organic product that is formed when 3-methylcyclopentanol is treated with the following reagents: 1) TsCl, pyridine; 2) NaCN.
What is the freezing point of a solution of 224 g of ethylene glycol (C2H6O2) dissolved in 1000 g of water?
What is the formula for the compound formed between germanium with a valency of (IV) and iodine
Find H+ and the pH of the following solutions a) .30M HBr b) a solution made by diluting 10.0 mL of 6.00 M HCl to .300 L with water
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
the uncatalyzed decomposition of hydrogen peroxoide is first order with an activation energy of 75.3 kj/mol and a half life of 6 hrs at 40 degrees celcius.
Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
How much heat is associated with the burning of 2.14 g of methane in the following unbalanced reaction
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