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A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added.
(a) 11.4ml
(b) 18.8ml
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 260 mL of 0.200 M NiSO4. How many grams of the precipitate can be formed?
Calculate its standard heat of combustion in kilojoules. Methyl tert-butyl ether (MTBE), , a gasoline additive used to boost octane ratings, has = -313.6.
The normal boiling point of actone is 56.2 C and the molar heat of vaporization is 32.0 kJ/mol. At what temperature will acetone boil under a pressure
You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence.
A 28.5 g sample of an unknown metal is heated to 95.0C and then dropped into 58.0 g of water in a coffee-cup calorimeter. The temperature of the water rises from 23.5 C to 27.1C.
how would i calculate the equilibrium bond length from knowing Bo B1 the equilibrium rotational constant and the vi-rot coupling constant?
What is the density (in grams per liter) of a gas mixture that contains 26.0 % F_2 and 74.0 % He by volume at 743 mm Hg and 28.5 C?
The repeating galacturonic acid monomers are connected by a-(1->4) bonds. Below draw 4 repeating monomer units making up a pectin molecule
After growing up your protein in E. coli and centrifuging the cells to collect the cell pellet, at what temperature should you store the cells?
iron was heated to 275.1 c and placed into 272 g of water at 19.8 c the temperature of the water rose to 25.6 c.
Tincture of iodine is I2(s) dissolved in ethanol, C2H2OH. A 1% solution of tincture of iodine is 10.0g of solute for 1000g of solution.
170mL of an HCl solution with pH of 2.80 is added to 200mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution
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