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Problem- How many liters of H2 would be formed at 750mm Hg and 12?C if 20.0g of zinc was allowed to react?
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the pka of benzoic acid and 4-nitroanilinium hydrochloride are 4.2 and 1.0 respectively.a. determine the keq for the
What is the hydroxide ion concentration and the pH for a hydrochloric acid solution that has a hydronium ion concentration of 1.50 × 10-3 M?
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
a 0.8612 g sample of a mixture consisting of nabr nai and nano3 was analyzed by adding agno3 to precipitate the br
The reaction is thought to follow second order kinetics which follows the relationship 1/[A]=1/[A]0+kt where [A] is the molarity at time, t, and [A]0 is the initial concentration.
The concentrationof the alkane C20H42 (FM= 282.55) in a particular sample in rain water is 0.2ppb. assume that the density of the rain water is close to 1.00 g/ml and find the molar concentration of C20H42.
Explain (thermodynamics/free energy coupling) why a compound with a phosphate group whose free energy of hydrolysis is more negative can transfer phosphate to another compound to make a phosphorylated product whose free energy of hydrolysis is les..
helium has a density of 1.79 x 10-4 gml at standard temperature and pressure. a balloon has a volume of 6.3 liters.
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
The Keq for imidazole binding to hemoglobin can be determined from the following linear equation: 1/?A100Keq * 1/[lm +1/?A100=(1/?A) a. For the plot of the reciprocal of the change in absorbance versus the reciprocal of the imidazole concentration..
a cylinder with a piston pressing down with a constant pressure is filled with 2.20 moles of a gas n1 and its volume is
zn s 2hcl liq -gt h2 g zncl2 s how many moles of zncl2 form when 6.3 mol of zn
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