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When molecules are represented by molecularmodels, what does each sphere represent? How big is the nucleus of an atom in comparison to the sphere used to represent an atom in amolecular model?
Given: The density of titanium metal is 4.51 g/cm3 at 25 C. What mass of titanium displaces 125.0ml of water at 25 C
The energy required for the ionization of a certain atom is 3.44 x 10-18 J. The absorption of a photon of unknown wavelength ionizes the atom and ejects an electron with velocity 1.03 x 108 m/s. Calculate the wavelength of the incident of radiatio..
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = ?26.434 kJ/g. When a 2.088 g sample of C6H5COOH..
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is not volatile and dissolves molecularly (i.e., it ..
List factors that influence the size of ice crystals and corresponding methods to control the crystal size
If I calculate avogadro's number using the mass gain of copper at the cathode rather than by using the mass loss at the anode, what sort of differences can I expect if any
A student decomposed Potassium Chlorate to create oxygen gas. The oxygn was collected by displacement of water at 22 degrees C and the total pressure was 754 torr.
the product gases from this rxn are then mixed with the remaining two-thirds of the feed stream and sent to a reactor in which the following reaction goes to completion: 2H2S+SO2 goes to 2H2O+3S
What is the name and structure of the gas produced in the reaction between calcium carbide and water
In each case indicate whether the addition of an electron to the ion would increase or decrease the bond order of the species. Li2+, Ne2+2, N2+, and B2+
4nh3 5o2 yields 4no 6h2ogiven 1.50g of nh3 reacts with 2.75g of o2 which is the limiting reactant? how many grams of
Describe how to prepare a total volume of 100 mL of each of the following buffer solutions via titration of 25.00 mL of 0.10M weak acid with strong base, and adding water as needed.
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