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Explain what are the masses of P4O6 and P4O10 that will be produced by the combustion of 2g of P4 in 2 g of oxygen leaving no P4 and O2?
If you have an acidic solution with a pH of 4.6, what is the concentration of H+ (or [H+]). For the solution in (a) what is the concentration of OH-
Calculate the mole fraction composition of the two components in the vapor phase above this solution. C) Identify a and b as being a part of the bubble point curve, of dew point curve for the mixture of benzene and toluene.
what percentage of HSO4- is dissociated in 2M solution? Why does molarity approximate molality at low concentrations?
Its volume has been accurately determine to be 3226.7kj/m. 2.5127 gm benzoic acid are burned in a carorimter the temperatuer rises from 20.84 to 25.67degree. What is the heat capacity of the bomb.
Heat energy is added to a , 352g block of nickel, and the temperature increases from 21 C to 53 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
A gas with a volume of .521 L is initially at an unknown temp. The gas is submerged in boiling water (100C) and is determined to occupy .284 L at constant pressure and composition. What was the initial temp
Nutritional tables give the potassium content of a standard apple (3 apples/lb) as 159 mg. How many grams of potassium are in 5.46 kg of apples
How will each of these changes affect the cell potential and why? a) Solid sodium hydroxide is added to the copper cell. b) 0.15 M iron (II) sulfate is added to the iron cell. c) Water is added to each cell so that the volume of each solution is d..
how much oxygen is required to support the aerobic biodegradation of the bod5 material in a storm water sewage
A 119.6ml sample of 0.110M methylamine (CH3NH2) is titrated with 0.255 M HNO3 . Calculate the pH after the addition of each of the following volumes of acid.
One side of the membrane representing 1/3 of the tank is filled with nitrogen ( may be assumed to be an ideal gas) at 4.1 bar and 315.6 K. The other side of the membrane is evacuated. The membrane ruptures and the gas fills the entire tank. Heat c..
For a first ordwr reaction theconcentration of the reactant was reduced from .0150 M to .0120 M after heating at 500 c for 150 s. What was the concentration of the reactant after 250 s. What was the half life
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