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The mass % natural abundance of the isotopes H and D are 99.985 and 0.015 respectively. The mass % natural abundance of the isotopes 16O, 17O and 18O are 99.759, 0.037 and 0.204 respectively. In a mass spectrometry experiment on naturally occurring water, at what m/z values would you expect to observe the three most abundant peaks for the molecular ions and what would you expect to be their relative abundances.
concentrated aqueous hydrochloric acid, the major product obtained was 4-chloro-3,4-dimethyl-2-phenylhexane. Show the mechanism for this reaction.
The overall formation constant for Cu(NH3)42+ is 1.1x1013 at 25oC. What is [Cu2+], in moles per litre, at equilibrium when 8.3 g Cu(NO3)2 is dissolved in 0.500 L of 1.00 mol/L NH3(aq)? Assume that there is no volume change when the Cu(NO3)2 is add..
Devise a synthetic strategy to transform 1-Bromobutane to heptane
Which of these statements correctly describes a diamond?
You have 50 mL of 0.010 fully protonated histidine. how many milimoles of base must be added to bring histidine solution to pH equivalent to the pI of histidine.
A 11.7 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
Iron is extracted from its ore using carbon. This can be represented using the following equation. Calculate the percent atom economy for pure iron.
Arrange the descriptions in order of increasing number of microstates in the resulting system.
Physiological saline solutions used for intravenous injections have a concentration of 0.90% NaCl by weight
20.0 mL of 0.250 M calcium nitrate are mixed with 25.0 mL of 0.150 M potassium nitrate. How many grams of product will form
What is the minimum temperature required to convert all but 0.040 of to products by 4:00 p.m.?
Calculate the amount of energy in kilojoules needed to change 135 of water ice at -10 degrees Celsius to steam at 125 degrees Celsius.
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