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Pyruvic acid, HC3H3O3, is involved in cell metabolism. It can be assayed for (that is, the amount of it determined) by using a yeast enzyme. The enzyme makes the following reaction go to completion.
HC3H3O3(aq) ? C2H4O(aq) + CO2(g)
If a sample containing pyruvic acid gives 20.3 mL of carbon dioxide gas, CO2, at 343 mmHg and 30°C, how many grams of pyruvic acid are there in the sample
How many liters of H_2 would be formed at 704 mm Hg and 14 degrees C if 21.5 g of zinc was allowed to react?
What is the heat change in J associated with 73 g of solid butane at -147 C changing to liquid at -109 oC?
The visible part of the hydrogen atom spectrum is called the Balmer series (n1 = 2). The violet line has a wavelength of 410.2 nm.
a solid block of exactly 100.0 cm has a mass of 153.6g. Determine its density. Will the block sink or float on water.
Starting with needed alkanes, alkenes and inorganic regrets, devise syntheses for the following compounds. Yout method should produce each compound in good yield and free of isomers.
(a) How many mL of KOH will it take to reach the equivalence point? (b) Calulate the pH at the equivalence point. The Ka of HClO is 3.8x10^-8
How many mole of hydrogen gas can be liberated from 85.5 moles of magnesium hydride if the process operates at 80% efficiency
suppose 45.0g of water at 85 C is added to 105.0 g of ice at 0 C. The molar heat of fusion of water is 6.01 kJ/mol, and teh specific heat if water is 4.18 J/g C. on this basis of these data (a) what will be the final temperature of the mixture and..
what is the molar concentrations for those two. The solution volumes are additive. Thank you so much I can't figure this out and I've been looking at it for 2 hours. I need it for my lab report.
After heating, 37.19 grams of the anhydrous compound remained. What is the formula of the hydrate?
A mixture is prepared using 25.00 mL of 0.08000 M aniline, 25.00 mL of 0.06000 M sulfanilic acid and 1.00 mL of 1.230 × 10-4 M HIn and then diluting to 100.0mL, where HIn is the protonated indicator. The absorbance measured at 550nm in a 5.000 cm ..
Draw both extended and Fischer representation of each of these compounds.
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