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What is the theoretical yield of MgO if0.5870grams of Mg react in excess O2gas?
Describe the procedure for the AVOGADRO'S NUMBER. This could be in an outline format or a flow chart format or paragraph format. It should not be copied directly from the manual
consider a lithium atom two of its electrons are in the 1sshell and the third is in the 2s shell1- consider the lithium
A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 67.9kJ of heat. Before the reaction, the volume of the system was 8.80L . After the reaction, the volume of the system was 2.80L .Calculate the total internal energy change ..
Which solvents are the best for trimyristin: methanol,, acetone, cyclohexane,, dichloromethane or diethyl ether. How would you rank the solubility of each compound
a gas-filled balloon having a volume of 6.00 l at 1.2 atm and 25degc is allowed to rise to the stratosphere about 30 km
What are the differences between alkenes and alkynes
A protein was isolated from a plasma membrane by treatment with a detergent. An analysis of the amino acid sequence of the protein revealed a region of 30 contiguous non-polar amino acid residues.
Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation, ofH?, at 25 oC for this compound. ofH? values at 25 oC for CO2(g) and H2O(l) are ?394 kJ mol?1 and ?286 kJ mol?1, respectively
For each of the following molecules, predict their geometry. State whether the compound is polar and if so, why
How many chloride ions are present in 0.53g of cacl2?
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
Design an experiment to test if pb2+ in it per liter of volume be as specific as possible about what procedures you will use. be aware that the amount of lead in water might be quite low. Explain what might you do to increase its concentration in ..
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