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During a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no change) your calculated value for the molar volume of O2 at STP.
1.) Your sample was not completely decomposed.
2.) After you finish heating sample & the system cooled to room temperature, you closed the clamp on tube D without re-equalizing the pressures inside and outside of the flask, The water in beaker E was 4 inches deep & the water in flask C was 2 inches deep.
Draw the Lewis structure of chlorous acid (HClO2). The result is that around Cl there are Fill in the Blank 01 (a number) bonding groups and Fill in the Blank 02 lone pair(s) of electrons.
Deduce the structure of the molecule that is composed of carbon, hydrogen and oxygen with a MS molecular mass peak value of 100 and molecular peak values of m/z = 29, 43, 57, 71, 100
A rigid ball that contained 25.0 liters of air at 22°C and 6.25 atm pressure was placed in an oven at a temperature of What was the new pressure inside the ball?
Which salt would you expect to dissolve readily in acidic solution. calcium phosphate, Ca3(PO4)2 calcium sulfate, CaSO4 Calculate K for the reaction of H3O+ with the PO43- anion. Calculate K for the reaction of H3O+ with the SO42- anion.
A 0.9092-g sample of wheat flour was analyzed by the Kjeldahl procedure. The ammonia formed was distilled into 50.00mL of 0.05063 M HCl; a 7.46-mL back-titration with 0.04917 M NaOH was required. Calculate the percentage of protein in the flour.
What are the conductance cell and the cell constant. Describe experimental method for the determination of the cell constant.
A volume of 95.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C .
the partial pressure of o2 in air at sea level is 0.21 atm. using henrys law calculate the molar concentration of o2 in
write a detailed mechanism for the reaction of salicylic acid with acetic anhydride showing clearly the function of the catalyst,
if you were stranded on a desert island and wanted to perform a re-crystallization what substance would best be used
Strong, non-charged bases are useful in base-catalyzed reactions. Many non-charged nitrogen bases are commonly used in various reactions. Perhaps the strongest non-charged base is shown below
why does one begin a column elution with non polar solvents and progress to more and more polar solvents
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