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A 6.88 g piece of copper is heated from 20.0C to 125 C and then submerged in 45.0 mL of water initially at 18.3 C. What is the final temperature of the water?
The flask was then shaken until the solution was uniform. A 60.0-\rm mL sample of this glucose solution was diluted to 0.500 \rm L. How many grams of glucose are in 100 mL of the final solution
Arrange the following in order of decreasing acidity. I. benzoic acid (C6H5CO2H) II. benzyl alcohol (C6H5CH2OH) III. phenol (C6H5OH)
Milk of Magnesia is actually a suspension (that's why instructions often mention shaking before use) of solid Mg(OH)2. 1.00 liter of solution of 0.055 moles of Mg2+ is held at a pH of 7.00. Would a precipitate form? If so, what fraction of the origin..
On average, cow milk is 4.7%(w/w) lactose. The molecular weight of this disaccharide is 342.3g C12H22011. Assuming milk has the density of water.
a bag of potato chips contains 595 ml of air at 35degc and a pressure of 765 mmhg. assuming the bag does not break what
Why did the height (and volume) change in the test solution? What is the basis for the increase in the volume in the test solution?
Calculate the energy for the transition of one mole of electrons from N=10 to the N=7 level in a carbon
show the path an electron takes when orbiting an atom describe regions of space in which one is most likely to find an electron.
You wish to prepare 100 mL (total volume) of a buffer solution that is 0.025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution.
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
a solid substance a is soluble in water to the extent of 10 mgml of water at 25 degrees c and 100 mgml of water at 100
patients suffering from respiratory disorders are often treated in oxygen tents in which the atmosphere is enriched in
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