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Write a balanced equation for the neutralization of each of the following: a)H3PO4(aq) and NaOH(aq) b)HI(aq) and LiOH(aq) c)HNO3(aq) and Ca(OH)2(s)
How many grams of CO are needed to react with an excess of Fe2O3 to produce 558 g Fe? The equation for the reaction is: Fe2O3(s) + 2 CO(g) → 3 CO2(g) + 2 Fe(s)
If you have 330 ml of water at 25 degrees and add 110 ml of water at 95 degrees, What is the final temperature of the mixture.
Calculate the mean displacement of the harmonic oscillator when it is in a quantum state ?. Use the Hermite polynomials in the attachment and the recursion relation to justify your answer through symmetry arguments.
An organic compound has a molecular weight of 176.12 amu and was found to contain only three elements, C, H and O. When a 1.0000 g sample was completely combusted in air
a certain amount of NH4OCONH2 is placed in an evacuated rigid container and allowed to come to equilibrium. Calculate the total pressure in the container at equilibrium.
A household refrigerator operates between 35 and -10C. How many joules of heat can in principle be removed per kilowatt-hour of work?
Verify the first equality in R (beta(delta e)^2e^Beta(delta e)/[e^Beta(delta e)-1]^2 using the chain rule, and then verify the second equality in the same bolded equation by evaluating the derivative with respect to Beta
The number of nuclei decaying in a sample of Gallium-68 decreased by a factor of 4 over a period of 136.6 minutes. What is the half life of this isotope
How much energy is needed to raise the temperature of 16.0g of gold by 17.0degrees C, Answer in units of J
A buffer solution is prepared by mixing 0.500 L of 1.50 M HF and 0.400 L of 0.95M KF. What is the pH of this buffer? [Ka(HF) = 6.30 × 10-4]
Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
sodium chloride is added to the water-cyclohexanone diethyl ether mixture. Explain how the addition of sodium chloride aids in isolation of the cyclohexanone product.
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