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Label each bond in the following molecules as polar or non polar (make sure you are describing the bond not the molecule).
CH4
SO2
CO2
Identify three radioactive elements or reactions of different types and write the nuclear reaction for each element.
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
What volumes of CO2 and NH3 at 201 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?
Calculate the number of moles of gas in a 3.24 L basketball inflated to a total pressure of 24.3 psi (pounds per square inch) at room temperature (25 degrees Celsius).
The reaction is second order in and has a rate constant of 0.0123 at 25.0 . A reaction vessel initially contains 250.0 of 0.133 which is allowed to react to form the gaseous product.
The value of Delta g for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4 kj/mol. If the concentration of 3-phosphoglycerate at equilibrium is 2.55 mM, what is the concentraction of 2 phosphoglycerate? assume a temperature ..
A student added more KSCN solution that instructed when making standard solution. assuming no other errors were made in the experiment
Show the calculation for the moles of benzaldehyde, the moles of acetone, the theoretical yield of dibenzalacetone in grams, and the calculation for the % yield of the product (dibenzalacetone). Also indicate which reagent is the limiting reagent.
If the silver -silver chloride electrode is replaced with a saturated calomel electrode, what is the new cell voltage?
A modern chealting agent used for this purpose is succimer (C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning.
A test solution contained 2 mL of 0.10 M Ag+. A silver strip was dipped into the test solution, and a cell potential of 0.0592 V was measured against an Ag/Ag+(1.0M) reference half-cell.
What range of accelerating voltages would be required to cover the mass range between 16 and 625, for singly charged ions, if the field strength is held constant?
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