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A flask is charged with 0.100 mol of A and allowed to react to form B according to the hypothetical gas-phase reaction A(g) B(g). The following data are collected:
(a) Calculate the number of moles of B at each time in the table, assuming that A is cleanly converted to B with no intermediates.
(b) Calculate the average rate of disappearance of A for each 40-s interval in units of mol/s.
(c) What additional information would be needed to calculate the rate in units of concentration per time?
A metal cube of volume 1.55± .05 cm is found to weigh 21.0 ± .5 g. a) What is the density of the metal in kg/m3? (correct significant figures only) density = kg/m3 b) What is the relative uncertainty? ± (dimensionless)
Problem- (a) Rank the following three compounds in terms of increasing boiling point: hydrogen chloride (HCl), hydrogen fluoride (HF), molecular oxygen (O2)
you are given 2.56 g of salicylic acid. using the procedure in the lab manual for the synthesis of aspirin you recover
Solutions of chymotrypsin prepared for experimental purposes are stored in a dilute solution of hydrochloric acid as a "preservative." Explain.
The specific heat of liquid ethanol, C2H5OH(l), is 2.46 J/g·°C and the heat of vaporization is 39.3 kJ/mol. The boiling point of ethanol is 78.3 °C. The molecular weight of ethanol 46 g/mol.
N2O2 draw valence bond drawings for the resonance forms-clearly labeling the sigma and pi bonds and hybrid orbitals.
what are the advantages of working with microscale equipment as opposed to larger equipment in a williamson ether
Which of the following is an RNA codon for protein synthesis? CGU GUA
A) Draw the major organic product obtained when 1,2-dimethylcyclohexane-1,2-diol encounters periodic acid.
a) if you make up a solution of 50mL of 0.1M TRIS in the acid form, what will be the pH. b) If you add 2mL of 1M NaOH to the solution, what will be the pH
For each of the following relations, indicate the normal form for that relation. If the relation is not in third normal form, decompose it into 3NF relations. Functional dependencies (other than those implied by the primary key) are shown where appro..
Explain the hazards of chemical burns other than tissue damage
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