Calculate the enthalpy change for the reaction
1) Calculate the enthalpy change for the reaction: P4O6(s)+2O2(g)>>P4O10(s) given the following enthalpies of reaction: P4(s)+3O2(g)>>P4O6(s) deltaH = -1640.1 kJ […]
Oct 4th, 2021
1- What mass of Cu(s) is electroplated by running 28.5A of current through a Cu 2+ (aq) solution for 4.00 […]
Oct 4th, 2021
Write balanced molecular and net ionic equations for the reactions
Write balanced molecular and net ionic equations for the reactions of a) m a) hydrochloric acid with nickel b) dilute […]
Oct 4th, 2021
Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid
Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid. It has pKa1=2.36 and pKa2=9.60 1. Draw the […]
Oct 4th, 2021
How every type of chromatography could be used in analytical chemistry
1. If you wish to extract aqueous acetic acid into hexane, is it more effective to adjust the aqueous phase […]
Oct 3rd, 2021
For the hypothetical reaction A → B, calculate the average rate of disappearance of A if the initial concentration of […]
Sep 24th, 2021
A soluble unknown has contaminated your sample
A soluble unknown has contaminated your sample. It absorbs the same wavelength as your analyte, Allura Red dye. How will […]
Sep 24th, 2021
1. If you wish to extract aqueous acetic acid into hexane, is it more effective to adjust the aqueous phase […]
Sep 22nd, 2021
How much heat is needed to decompose 505 g of the oxide?
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) 2 Hg(l) + […]
Sep 20th, 2021
Explain why oxygen atoms are neutral
1. Explain why oxygen atoms are neutral. 2. Compare: an atom’s structure to a ladder. What parts of the ladder […]
Sep 16th, 2021