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A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml .(a)find the mean volume and deviation from the mean for each and calculate the average deviation from the mean (b) calculate the relative deviation (in %) for this set of data. Relative deviation (%) = (average deviation from the mean / the )
The specific heat of an unknown metal is found to be 0.233 J/K g. The Law of Dulong and Petit predicts a molar heat capacity of 26 J/K mol. Use this law to estimate the molar mass of the metal.
What is the percent ionization of a 0.060 M solution of benzoic acid ( a monoprotic acid with Ka= 6.5 * 10^-5)
For the elementary processes whose equations are given below, determine whether each is unimolecular or bimolecular and determine the rate law for each process. Pick the choice which is correct.
Name two amino acids that are mostly positively charged at neutral pH. A Lysine and arginine B Histidine and arginine C Cysteine
Calculate the pH of a buffer solution obtained by mixing 400.0 mL of 0.200 M acetic acid solution and 100.0 mL of a 0.300 M sodium hydroxide solution.(The pKa of Acitic Acid, CH3OOH is 4.74)
How many kJ of energy are required to convert 258 grams of ice at 0°C to water (liquid) at 42.1°C? The following information is given for H2O.
Could you tell me what is the purpose of this reaction (Michael and aldol condensation reactions), and the stepwise mechanism of the reaction.
Calculate the mass percentage of cobalt in Co3(PO3)2.
What is the overall mass-transfer coefficient for oxygen (O2) from the atmosphere to the river? (b)Which part of the transfer mechanism controls the overall rate
0.0834 moles no are reacted with .0854 moles o2 gas to form no2 gas according to the following equation2nogo2g
Write a thermochemical equation for the reaction that shows the formation of one mole of nitric acid.
If you had a mixture of benzoic acid (C6H5CO2H) and biphenyl (C6H5C6H5), how would you purify them based on solubility/recrystallization
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