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A drink sold in a health food store contains 2.00% (w/v) of vitamin C. What volume would you have to ingest to obtain 1,000. mg of vitamin C?
Using the information on the mass of a proton, mass of an electron and the sizes of the nucleus and the atom, calculate the densities of a hydrogen nucleus and hydrogen atom.
Problem- Given the following reaction, what mass of chlorine, Cl2, is required to completely react with 26.27 g of PH3? (Molar masses: PH3 33.99 g/mol; Cl2 70.90 g/mol; PCl3 137.32 g/mol; HCl 36.46 g/mol) PH3 + 3 Cl2 --> PCl3 + 3 HCl
what is the literature value for the Ksp of potassium hydrogen tartrate in water at 10, 22.5, 35, 50 degrees?
balanced equation for the preparation of the diazonium ion that i have made. draw possible structure for the azo dye.
How many grams of water are produced in the reaction? If 55 grams of salt were actually produced, what is the percent yield?
For a certain glass electrode, the selectivity coefficient for Na+ relative to H+ is 1.0E-12. The electrode is calibrated with NBS standard buffers 6.86 and 9.18,
Problem- A 9.80-L container holds a mixture of two gases at 17 C. The partial pressure of gas A and gas B, respectively, are 0.409 atm and 0.769 atm. If 0.120 mol of a third gas is added with no change in volume or temperature, what will the total..
What size sample would be necessary to find, with 95% confidence, the true population proportion, p, to within 2.5% if you had no idea what the true proportion
Why would be difficult to isolate neutral p-aminobenzoic acid. What effect will pH have on the structure of your product
A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temperature of 112 degrees C. What is the volume of gas, in milliliters
if 600 j of heat are added to 50 g of water initially at 20 degrees c.how much energy is this in calories?what is the
A solution is prepared by dissolving 0.400 g of solute in 1000.g of water how many parts per million of solute are in this solution
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