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Problem- This term the art professor would like her students to make glass with a composition of 74 %, silica 16%, washing soda and 10% limestone. The starting total mass of the three components should be 1 kg. If the beach sand they use contains 26.5% sea salt, 19.2% seashells and 54.3% sand, how many grams of beach sand and additional silica, washing soda and limestone should the students use to meet these specifications?
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Draw all possible stereoisomers for each of the following compounds. If no stereoisomers are possible, only draw one structure. (All hydrogen atoms are implied. If a chiral carbon atom is attached to a hydrogen atom
bacterial digestion is an economical method of sewage treatment. the reaction5co2g55nh4aq76o2g --bacteria--gt
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains .0011% Pb by mass. What volume of water in mL contains 115 mg of Pb
How many moles of oxygen are generated during the thermal decomposition of 7.75 g of lead (IV) oxide?
Tremetol is a metabolic poison found in white snake root. Cows that eat white snake root have high trematol levels in their milk which can poison humans who drink the milk.
The base solution was added to the acid solution but was not stirred while temperature measurements were made. Some of the base splashed out of the calorimeter while pouring
Calculate the number of grams of alcohol present in 1.00 L of 69 proof gin. The density of ethanol is 0.798 g/mL.
what is the freezing point of a benzene solution containing 400 g of benzene and 200 g acetone c3h6o? kf for benzene is
The energy required for the ionization of a certain atom is 3.44 x 10-18 J. The absorption of a photon of unknown wavelength ionizes the atom and ejects an electron with velocity 1.03 x 108 m/s. Calculate the wavelength of the incident of radiatio..
in the addition of hbr to isobutylene shown below there are two possible products.a. this reaction is the markovnikov
The common forms of nitrogen and phosphorus are N2(g) and P4(s) respectivly. Account for the difference in terms of the single and multiple
What observed rotation is expected when a 1.06 M solution of (R)-2-butanol is mixed with an equal volume of a 0.530 M solution of racemic 2-butanol,
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