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Determine the mass of copper that would release 438 J of heat while cooling from 284 degrees C to 25 degrees C
at a certain temperature 0.200 moles of no 0.300 moles of cl2 and 0.500 moles of clno were placed in a 25.0 l vessel
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 1-methylcyclohexanol as the MAJOR product.
when substitutionally incorporated into 1 kg of silicon will establish a charge carrier density of 3.091times1017
Write the electron configuration for each of the following. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2 and using the format CO2 for CO2.)
It takes 51.0 J to raise the temperature of an 10.2 g piece of unknown metal from 13.0C to 25.0C. What is the specific heat for the metal
A compund with a formula mass of 42.08 amu is found to be 85.64% carbon and 14.36% hydrogen by mass. find its molecular formula. I did this problem and got c2h for the epirical formula then for the molecular formula i got c4h2 but im not sure that..
An electron in the n = 7 level of the hydrogen atom relaxes to a lower energy level, emitting light of 93.1 nm. What is the value of n for the level to which the electron relaxed
A sample of nitrogen occupies a volume of 546 mL at STP.What volume would nitrogen occupy at 177C under a pressure of 380 torr?
the alkyl halide used in the reaction is a primary alkyl halide, and why alkylation does not work at all if a tertiary alkyl halide is used.
20 ml Calcium Hydroxide solution was titrated with 9.8 ml 0.0105 M HCl in according to reaction: Ca(OH)2 + 2HCl ? CaCl2 + 2H2O The true value of solubility product constant (Ksp) of Ca(OH)2 at 25 C is 1.3x10-6. What is molar solubility of Ca(OH)2 in ..
The relative molar mass of an element is known to be 32.064 g. Determine the abundance fraction of the isotope whose fraction is not displayed in the table.
2sbs 3ss rarr sb2s3s is the given equation in which sb2s3 is 340. gmol determine what is the mass percent yield from
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