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Your starting mixture contains both KCl and KClO3. Suppose that your starting mixture weighed 2.040 grams total, and suppose that you dertermined during your reaction that you produced 0.0072 mols of O2. The balanced equation for this reaction tells you that you produce 2 mols of O2 for every 3 mols of KClO3 you use. Based on this information, what percentage of KClO3 in the original mixture? (information that may or may not be helpful: Molar mass of KClO3 is 122.5g/mol, molar mass of KCl is 74.5 g/mol, molar mass of O2 is 32.0 g/mol)
Peonin is a red pigment found in the petals of peony flowers. Why do you think peonin is bonded to two hexoses? What monosaccharide(s) would be produced by acid-catalyzed hydrolysis of peonin?
What is the final river temperature downstream? Assume that the density of the waste stream is 1000 kg/m3.
Statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point? a. Saturated fatty acids have melting points that increase gradually with molecular weight.
What velocity would an electron (9.11x10^-31kg ) need for its de Broglie wavelength to be that of red light (745 nm)?
A sample of MgCl2 is known to be contaminated with NaCl. A 3.47-g portion of the sample is dissolved in water and treated with an excess of AgNO3 solution.
A first-order reaction has a rate constant of 0.33 y-1. How many years does it take for the concentration of the reactant to decrease from 0.13 M to 0.088 M?
Separation scheme for isolating benzoic acid, Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard
a TIre has a volume of 535 cm3 at a temprature of 20 c while in use the temprature of the tire rises to 65 c calculet the new volume of the tire assuming a constant pressure and amount of air?
What are two primary advantages of using nuclear power? Uranium reserves on our planet are 5 million metric tons.
What is the density of a block of marble that occupies 253 cm and has a mass of 752 g? Answer in units of g/cm
A solution of PbI2 has [Pb2+] = 4.5 x 10-5 and [I-] = 6.5 x 10-4. PbI2 has Ksp = 8.7 x 10-9. Write down the reaction that is taking place. Calculate Q.
One of the lines of the hydrogen line spectrum has a wavelength of 434.1 nm. It is known that all of the visible lines of the hydrogen spectra result from an electron
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