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When M2S3 is heated in air, it is converted to MO2. A 4.000g sample of M2S3 shows a decrease in mass of .277 g when it is heated in air. What is the average atomic mass of M?
Lindane, a powerful insecticide, is a member of this group. The molar mass of lindane is 290.8. How many atoms of carbon does a molecule of lindane contain
draw the structure of the expected dichlorocarbene adduct of methyl methacrylate. another product could have been obtained. It is the chloroform adduct to the double bond (Michael type reaction). what would this structure look like.
A solution is made up using equal volumes of 2.0 M acetic acid (Ka= 1.8 x 10 to the power of negative 5) and 0.00050 M HCl.
Propose a structure for C4H9N, which does not liberate a gas when treated with NaNO2 and HCL, and has IR absorptions at 917, 990, and 1640, as well as an N-H absorption at 3300. The 13C NMR spectrum is as follows
What volume of an organic solvent must be used to effect 90% seperation in one extraction when only 2.7 g of a certain compound dissolves 100 ml of water? (K=15).
One radio station operates on an assigned frequency of 88.1 megahertz while another operates on an assigned frequency of 1460 kilohertz. What is the ratio of the larger to smaller value?
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 1.9 L of 1.250 M NH4NO2 decomposes at 25 degrees C? NH4NO2 --> N2 + 2 H2O
If 2.5 mol of ethylene oxide are decomposed at 93 degrees C, what will be the final temperature of the products? The heat capacity of the products is 110.13 J/ molC.
Draw those that have a trisubstituted ring where the methyl groups are oriented in para. Please draw structures
assume that the activation energy for a certain reaction is 173 kjmol and the reaction is started with equal initial
Explain the following given for each statement in determining the sequence of peptide with concise (short) but complete response. you must state the specificity of each statement implication in determining the sequence of octapeptide.
A 7.50 g piece of iron at 100 C is dropped into 25.0g of water at 22.0 C. Assuming that the heat is lost by the iron equals the heat gained by the water, determine the final temperature of the iron/water system. Assume a heat capacity of water 4.1..
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