What was the molarity of the sodium carbonate solution
A 447 cm3 volume of Na2CO3 solution was warmed with an excess of sulfuric acid until all action ceased. A 5.0 L volume of dry CO2 gas measured at STP was given off and collected. What was the molarity of the sodium carbonate solution?
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Copper is sometimes coated on the bottom surface of cooking pans. Copper has a specific heat of 0.385 J/g 0C. A25.0-g sample of copper heated to 85.0 0C is dropped into water at an initial temperature of 14.0 0C.
A portable electric water heater transfers 255 watts (W)of power to 5.5L of water, where 1W=1J/s How much time (in minutes) will it take for the water heater to heat 5.5 L of water from 27 degrees Celcius to 44 degreesCelcius?
How do you go from a five membered ring diester to a six member edring fenchone? What steps do you need to take?
Calculate the mass of sodium acetate that must be added to 500.0 mLof .2 M acetic acid to form a pH = 5.00 buffer solution.
Suppose that you titrate a 3 g sample of orange juice and it turns out to contain only 95.5mg of vitamin C. Further, it took 32.45mL of DCP solution to reach the end point of the titration.
If you have 5L of a 10M solution and wish to make 100 mLs of 0.01M, how many mLs of 10M solution would you use and how much water would you add to make the diluted solution?
A "miracle" lotion, which is sold under the label of FixitAll, is a mixture containing both zinc oxide (ZnO) and iron oxide (form unspecified). A 1.4882 gram sample of the dried lotion was dissolved in HCl and diluted to a volume of exactly 286.24
A protein subunit from an enzyme is part of a research study andneeds to be characterized. A total of 0.160 g of this subunitwas dissolved in enough water to produce 2.00 ml ofsolution.
Patients undergoing an upper GI tract lab test are typically givenan X-ray contrast agent that aids with the radiologic imaging ofthe anatomy. One such contrast agent is sodium diatrizoate (NaDTZ),a non-volatile water-soluble ionic compound.
An element consists of two isotopes. The abunance of one isotope is 60.1% and its atomic mass is 68.9256 u. The atomic mass of the second isotope 70.9247 u. What is the average atomic mass of the element?
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