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How do you think the use of quantitative methods related to these advantages and disadvantages? 2. How do forecast practitioners rank various forecasting models applied to any given problem? Which technique is used most often in practice and why?
does it mean that the solution will shift towards the products because there is excess of reactants? what does it mean when the solution is orange (is it shifting towards products or reactant)?
Explain why Markovnikov's rule is needed to predict the products of hydration and hydrohalogenation, but is not needed to predict the products
Draw the Lewis Structure for the ClF2+ion and AlF4-. For each ion, what are its electron-pair and molecular geometries? What orbitals on Cl and F overlap to form bonds between these elements
What is the enthalpy of combustion of this fuel in kJ/mol? The specific heat capacity of water is 4.184 J/g-°C.
The vapor pressure of is 100 at 5.4, and the normal boiling point is 56.8 . what is enthalpy in vaporation in kj/mol?
A gas sample is held at constant pressure. The gas occupies 3.26L of volume when the temperature is 51.6 F . Determine the temprature at which the voloume of the gas is 3.45 L.
How many moles of NaF must be added to 100.00mL of 0.15 M HF to prepare a buffer with pH=3.30. Ka(HF)=7.1*10^-4
1.90-g sample of a large biomolecule was dissolved in 23.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule.
One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 74°C. Weights are removed suddenly from the piston to give the following sequence of three pressures.
how many atoms are on the surface of the particle? What fraction of the gold atoms in the particle are on the surface?
In an insulated container, a hot piece of iron (cp =0.4513 J/g-C) at 1490. C was added to 200. g of water (cp =4.184 J/g-C) at 20. C. The temperature of the resulting mixture became 90. C. What mass of iron was present?
What salt is produced in each of the following neutralization reactions?
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