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Starting with 2.5 grams of vitamin D3 and 10mg of palladium catalyst, how many millimoles of H2 will be necessary to hydrogenate all of the Carbon Carbon double bonds in D3?
Assume D3 is the limiting reactant. What is the percent yield of the product if one starts with 2.5 grams of vitamin D3 and obtains 1.8 g of product?
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood.
How many grams of oxygen are required to completely burn 5.90g of C3H8 in the following unbalanced
A steel cylinder is filled with 5.75 mol of nitrogen at 22degrees Celcius. The volume of the cyclinder is 18.4 L Calculate pressure inside the cylinder.
Which of the following is a homogeneous mixture? Which of the following represents a chemical change, rather than a physical change? Which of the following pairs of symbol & element is incorrect?
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 16.0 of luminol into a total volume of 75.0 of .
Why do you think we need to convert the calcium carbonate to calcium chloride befoe we do our EDTA titrations? What specific condition in our titrations require this?
find the percent composition of a compound that contains 1.94g of C, 0.48-g of H and 2.58-g of S in a 5.00-g S sample of the compound
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
Calculate the equilibrium concentration of Cl2O(g) if 1.0 g of H2O(g) and 2.0 g of Cl2O(g) are mixed in a 1.0-liter flask.
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
a sample of neon to escape from a hole in a container, how long would it take for an equal amount of nitrogen gas, N2, to escape
Estimate the ratios of the basic and acidic forms of the histidine side chain
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