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Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour?
Draw and name all the possible constitutional and stereoisomers of the monochlorinated products formed by the free-radical chlorination of 2-methylbutane. Count any pair of enantiomers as two different products
In terms of uncertainty, why is an endpoint volume of 9 mL less preferred than an endpoint volume of 35 mL? In terms of uncertainty, why is an endpoint volume of 55 mL less preferred than a volume of 35 mL?
Present-day carbon (in living matter) gives 15.3 disintegrations per minutes per gram of total carbon. Determine the date of the volcanic eruption. Recall that the half-life of carbon-14 is 5730 y.
Write the complete ionic equation for the reaction that occurs when a few drops of HCl are added to the buffer.
The standard deviation is 50768, and the RSD % is 12.4%. The original mass of the tablet was 679.1 milligrams. How do I find how many milligrams of caffeine was in the original tablet
Determine the partial pressure and total pressure of the gases and Find the partial pressure of carbon dioxide in a gas mixture
A 4.22g sample of CuS was added to excess HCl, and the resulting H2S was collected over water. What volume of H2S was collected at 32 degrees celsius
Draw the products(if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide
A 55.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 27.6 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution
112 mL of a glucose (C6H12O6) solution is prepared by diluting 8.2 mL of a stock solution of unknown concentration. If the dilute solution contains 0.20 moles of glucose
If a 2.1 L reaction vessel initially contains 723 torr of cyclopropane at 485 degrees C , how long will it take for the partial pressure of cylclopropane to drop to below 105 torr ?
Draw the structure for thin layer chromotography? what is it melting and boilng point, density, molecular weight and strucural formula
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