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If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard? Parts per billion is defined on a mass basis as ppb = g solute/g solution 10^9
write structures for the various aldol condensation products you expect from the aldol self-condendsation of 2-butanone
How much limestone must be decomposed by heating to produce 150.0 grams of lime, CaO?assuming that the limestone contains 85.0% pure CaCO3.
Give the complete, step-wise mechanism for the acid catalyzed dehydration of 2-methyl-1-butanol. Account for the formation of all products
determine what would be its temperature after absorption of 9.4 10-2 kwh of heat if 1.45 l of water is initially at
Hydrogen fluoride is a highly reactive gas. It has many industrial uses, but the most familiar property of HF is its ability to react with glass. As a result, HF is used to etch glass and frost the inner surfaces of light bulbs.
To find the pKa of X-281, you prepare a 0.087M test solution of X-281. The pH of the solution is determined to be 2.40. What is the pKa of X-281?
what are some of the causes of dehydration? definenbspdiureticnbspand include 2 examples. what are some ways to counter
explain what would happen if you failed to achieve complete precipitation of the Lead in procedure 2(separation of silver and Lead ii ions as chlorides), Explain how this might impact your results
what is the hydrogen ion concentration of this solution? What volume of .250 M KCl will completely react with 50.0 mL OF .115 m Pb(NO3)2?
An ice cube of 15.1 grams is placed into 304 grams of H 2 O. compute the change in temperature in the H 2 O upon completing melting of the ice.
A sample of 5.0mol CO2(g) is originally confined in 15dm^3 at 280 K and undergoes adiabatic expansion against a constant pressure of 78.5 kPa until the volume has increased by a factor of 3.0.Calculate q,w,delta T,delta U,and delta H
Given that 3.582 g of copper (II) chloride are dissolved in 2.478 litres of deionized water, answer the following: 1) How many moles of copper (II) ions are present in the sample
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