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Question: A chunk of metal weighing 15.45 g is added to 21.27 mLof water in a graduated cylinder. The water rises to 24.78 mL. Calculate the density of the metal.
calculate delta h degree rxn for the reduction of v2o5. the table is v2o5s -1550.6 deltah degree kjmol h2g 0 deltah
Explain how high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury. Explain the density of water is 1.0 g/mL, whereas that of mercury is 13.6 g/mL.
A system expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work (w) if the expansion occurs against a constant pressure of 5.00 atm.
Which reactant is in excess from the reaction of 35.0 g of hydrogen with 276 g of oxygen to form water
A weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction.
Determine the boiling point of a solution of 72.4 g of glycerol dissolved in 122.5 g of water.
The molar heat capacity of Cu(s) at 1 atm pressure has been measured over a range of temperatures from close to 0 K to 400 K. Describe how you would obtain the standard molar entropy of Cu(s) at 298 K.
What was the mass percent of dissolved solids in the sea water. b.) The actual solution chloride content in the sea water was 2.69%. If it had been assumed that the dissolved solid(s) consisted only of sodium chloride, what percentage error would ..
what is the molarity of HCl in a solution prepaired by dissolving 18.25 gm HCl in 200 gm ethanol, if the density of solution is 0.86 gm per mm
Calculate the total quantity of heat required to convert 25g of liquid ccl4 from 35 ºC to gaseous CCl4 at 76.8ºC(the normal boiling point for CCl4). The specific heat of CCl is 0.857J/(g ºC), its heat of fusion is 3.27 kJ/mol, and its heat of vapo..
Sugar (82.00 grams; molar mass 342.3 g/mol) was dissolved in water. The freezing point of the solution was determined to be -3.60 deg C. How many grams of water were used to make the solution?
What is the minimum amount of 6.2M H2SO4 necessary to produce 25.7g of H2 (g) according to the following reaction?
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