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Calculate the molarity of 75.0 mL of a solution that is 0.92 % by mass NaCl. Assume the density of the solution is the same as pure water.
Problem- If an object has been magnified 106 times and appears to be 10-4 m, what is the actual size of the object in pm. Enter your answer in decimal notation, using no units.
explain why this series of reaction will produce the 3,5-dibromotoluene and direct bromination of toluene produces the 2,4-dibromotoluene.
If the work function of a metal is 4.51 eV, what is the maximum wavelength of light that can be used to observe the photoelectric effect
many cigarette lighters contain liquid butanec4h10l. using standard enthalpies of formation calculate the quantity of
Choose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate ?Hvap for dichloromethane (in kJ/mol).
question 1 give the numbers of protons and electrons in each of the following a na b ca2 c al3 d i e o2 f n3 and g
According to molecular orbital theory which of hte following is not predicted to exist I know its He2 but how do you get bond order from that is there an easy way
Heat energy is added to a 352 g block of nickel, and the temperature increases from 21 degrees C to 53 degrees C. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be
why do we have to make sure we light the fire and remove the lighter quickly to burn the nuts
Draw all stereoisomers of 3-heptene. Position the groups attached to the double bond (120° bond angles) to indicate the stereochemistry.
According to the following reaction, how many grams of oxygen gas are required for the complete reaction of 29.0 grams of hydrogen sulfide
What is the net charge of following polypeptide LEFVYSCQ at pH 10.07 and 13.56?
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