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Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following
a) the number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgCl2 and H2
b) the number of moles and the mass of oxygen formed by the decomposition of 1.252 g of silver(I) oxide.
c) the number of moles and the mass of magnesium carbonate, MgCO3, required to produce 283g of carbon dioxide. (MgO is the other product)
d) the number of moles and the mass of water formed by the combustion of 20.0 kg of acetylene, C2H2, in an excess of oxygen
e) the number of moles and the mass of barium peroxide, BaO2, needed to produce 2.500 kg of barium oxide, BaO (O2 is the other product)
a series of silicon-hydrogen compounds with the general formula sinh2n2 can be represented by the known compounds sih4
how many millimeters of 5M NaOH are needed to neutralize 40mL of 2M H2SO4
baking powder consists of a mixture of baking soda and a substance such as cream of tartar. baking soda is sodium
a 55.0g piece of copper wire is heated, and the temperature of the wire changes from 19.0C to 86.0C. The amount of heat absorbed is 1.4 kilojoules. What is the specific heat of copper?
What is the Pauli exclusion principle. Specificity and selectivity are important concepts to understand in terms of chemical binding. Define specificity and selectivity? How do they differ. For a drug which is preferred, specificity or selectivity..
Calculate the weight of KMnO 4 contained in 2 liters of a 0.15N (not M) solution.
what is its characteristic wavelength? hint recall that the kinetic energy of a moving object is e12mv2 where m is the
a balloon is filled to a volume of 7.00x102 ml at a temperature of 20.0 degrees c. the balloon is then cooled at
A gas obeys the van der Waals equation of state. The critical parameters for this gas are Pc=47.7 atm, Tc=151.15K, and Vc=0.0752 liter mol^-1. Evaluate the reduced pressure of the gas at 300K and a volume of 15 liters.
Bauxite, the principle ore used in the production of aluminum cans, has a molecular formula of Al2O3•2H2O. (a) Determine the molar mass of bauxite. (b) How many grams of Al are in 0.58 moles of bauxite?
A student wants to determine the density of a plastic piece. Preliminary experiments indicate that the density of the plastic is greater than 0.85 g/ml, but less dense than water. In order to determine the density of the plastic piece, the student wi..
Define what weight of compound Y would be removed from the original water solution in question c) by two extractions by means of 50mL of ether each time
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