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In a solution of dopamine, the density is 1.039 g/mL, experiments show that there is 1.39 mmol dopamine. How many grams of dopamine in the sample? The chemical formula of dopamine is C8H11NO2.
how much heat is required to warm 221 g of ice from -44.7degc to 0.0degc melt the ice warm the water from 0.0degc to
An interesting and unique feature of DNA is that it may be both replicated, thus ensuring genetic continuity, and transcribed, to enable expression of the genetic information.
Calculate and record the following for the experiment performed with 20g KClO. mass of the crucible with manganese(IV) dioxide (in grams): 54.200g
a line in the Balmer series of hydrogen has a wavelength of 434 nm from what state did the electron originate
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione... better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood.
Determine the grams of sodium carbonate required to precipitate magnesium ions from water used in one wash cycle of a washing machine. Notes: 1) Assume the concentration of Mg+2 is 165mg/L 2) Estimate the volume of water used in your wash cycle 3)..
Offer a brief explanation of why bandgaps for octet p-block semiconductors (1) decrease with increasing average principal quantum number
If the sample contains a combined total of 1.75 grams per mole and has a total mass of 51.0 grams, what are the percentages of CO2 and Ne in the sample by mole?
what are the balanced molecular equations for all of the chemical reactions involved in the copper cycle experiment? There are eight of them.
What is the [H3O+] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? Ka=1.7x10^-4
an underground iron pipe in damp soil is to be protected from rusting. which of the following techniques would not
An electron makes a transition from n = 8 to n = 3. What is the energy associated with this transition
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