Portion of the periodic table
All chemical used in this test are binary compounds. What portion of the periodic table is responsible for the color observed?
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You performed these reactions in an acidic solution (diluting with 0.1M HNO3). This is because iron forms an insoluble hydroxide ion (i.e. even in slightly acidic solutions).
Which non-metal anion bearing a charge of -1 is represented by the electronic configuration 1s22s22p6? Write down your answer in the form A- where A is the symbol for the element from which the anion is derived.
Silver nitrate, AgNO3, reacts with ferric chloride, FeCl3, to give silver chloride, AgCl, and ferric nitrate, Fe(NO3)3. In a particular experiment, it was plannned to mix a solution containing 25.0 g of AgNO3 with another solution containing 45.0
Compare the pH values in the dilution experiment for each of the acids and bases used to the pH determined for distilled water. Do the pH values for the more dilute solutions approach the pH of the distilled water?
An empty Erlenmeyer flask weighs 194.4 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 489.1 g. What is the flask's volume?
You have read about the methods for allocating support costs to supporting departments. Offer at least two example scenarios, including calculations, where these would be appropriately used, and explain why you chose those scenarios.
In a particular experiment, 255 g of CaCO3 was exposed to 135 g of SO2 in the presence of an excess amount of the other chemicals required for the reaction. a) What is the theoretical yield of CaSO3?
A 10.9 mol sample of argon gas is maintained in a 0.787 L container at 298 K. What is the pressure in atm calculated using the van der Waals' equation for Ar gas under these conditions? For Ar, a = 1.35 L2atm/mol2 and b = 3.22E-2 L/mol.
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