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What mass of oxygen is produced when 50g of Na2O2 (sodium peroxide) react?
why does hydrochloric acid and acetic acid have the same equivalence, while hydrochloric acid and sulfuric acid
A 20.00 ml sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volume of base has been added: 20.1 ml.
write the skeleton equation representing the heating of magnesium carbonate to produce solid mangnesium oxide and carbon dioxide gas.
which of the water samples that you tested had the highest calcium concentration? does this correlate with the total dissolved solids results you obtained
A balloon is filled to a volume of 7.0 102 mL at a temperature of 12.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 multiplied by 102 K. What is the final volume of the balloon?
In terms of determining the equilibrium constant. I have to figure out if I would be able to get the same value of k that I obtained under at a wavelength of 450nm at 400 or 500 nm of wavelength or will the value differ depending on the wavelength
An aerosol spray can with a volume of 350. mL contains 2.29 g of propane gas (C3H8) as a propellant. (a) If the can is at 25°C, what is the pressure in the can? (b) What volume would the propane occupy at STP?
Conjugation of the functional group in alkyl socyanates has little impact on the antisymmetric -N=O stretching vibration located near 2770/cm . Explain.
describe the preparation of 400 mL of a solution that is 0.0500 M in I-, starting with MgI2.
Clearly explain, using calculations as necessary, how you would obtain the 5 mL of 1.5M sodium hydroxide that you need
Two beakers are places in a closed container, beaker A initially contains 0.15 mole of naphthalene (C10H8) in 100g benzene (c6h6), as well as beaker B contains 31g of unknown compound dissolved in 100g benzene.
a balloon is partly inflated with 480 liters of helium at sea level where the atmospheric pressure is 996 mbar.the
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