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Define pH. why do chemists normally choose to discuss the acidity of a solution in terms of pH rather than hydrogen ion concentration [H+]
Consider the reaction CaCN2 + 3 H2 O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
a gas is placed in a balloon with a volume of 3.0L at 35C and 800 torr. What would be the new volume for the gas if placed under STP
calculate the micrograms (to the nearest microgram) of iodine per serving in the finished product. Show your work.
The CO2 reacts. yielding a precipitate of BaCO3, but the CO does not react. This method was used to analyze the equilibrium composition of the gas obtained when 1.77 g of CO2 reacted 2.0 g of graphite in a 1.000L container at 1100K. The analysis y..
calculate the energy required to bring your substance from absoluter 0 to 4000 degrees c , if you have 5g,75g,300g,1000g,1.5 of your substance.
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
what number of grams of NaHCO3 in a .210 g piece of antacid would generate 38.0 moles of CO2, if the CO2 is measured at 20 degrees C and 1.00 atm.
Lewis Bases given their lone pairs on the central atoms, however, none of them actually are. Why are OF2 and SF4 are strong Lewis Acids and not Lewis Bases
In an electrolysis experiment such as the one you will perform, 1.76 x 10^-3 moles of hydrogen gas were collected, and the metal electrode lost 0.1983 g. The equivalent mass of the metal is approximately what?
what is the theoretical mass of xenon tetraflouride that form when 118. grams of xenon is reacted with 62.0 grams of flourine?
Draw a diagram for this cell and identify the cathode (including the identity of metal), anode (including the identity of metal), direction of electron flow, salt bridge, and ions present in solutions.
The mass of a cube of iron is 284 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
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