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Which elements has an outermost electron that could be described by the following quantum numbers: (3,1,-1,+1/2) ?
Understanding radioactive decay, half-life and nuclear chemistry.
Finding volume in a molarity problem.What volume, in milliliters, of a 2.00 M aqueous KOH solution would be needed to neutralize
How do you work out which ionic molecules are more polarised and which are less covalent
What is the Molarity(m) of a solution that contains 73.5g of 1,4-dichlorobenzene,C6H4Cl2, in 500mL of carbon tetrachloride? (The density of CCl4 is 1.60g/mL).
Why or why isn't it possible to have pi bonds between two atoms without there being a sigma bond?
A solution with 18 grams of AgNO3 was mixed with a solution. 32.4 grams of FeCl3. How many grams of which reactant remains after reaction?
Absorption Spectroscopy Experiment.Describing an experiment where one could measure the value of the extinction coefficient
Discussion of interactive/repulsive forces.A nonelectrolyte solution adsorbs on an electrically neutral solid through a liquid.
Does this Lewis structure make a substantial contribution to the electronic structure of BF3? Explain your answer.
Calculate the molarity of a solution prepared by dissolving 3.12 grams of gaseous HCL in enough water to make 26.8 mL solutions.
How many grams are in 1 mole of table salt (NaCl). How many individual ionic compounds of NaCl are in 1 mole?
Calculate boiling point and freezing point - assume complete dissociation of ionic compounds:
4.626g sample of hydrocarbon upon combustion yielded 6.484g of CO2, what is the % by weight of the carbon in the hydrocarbon?
Calculate molar solubility of CuI in 1.0 M NaI. Assume the highest complex formed is CuI2 - .
In the reaction barium chloride plus potassium chromate yields potassium chloride and barium chromate, 10.0 milligrams of barium chloride.
The half-life for the decay of aluminum -26 is 7.20 x 10 ^5 years. 2) How many years did it take for 99.99% of the aluminum -26 to decay?
Write a balanced chemical equation, for the reaction that occurs, when Solid barium hydroxide, dissolves in water.
The definition which is used in everday chemistry. Quite useful in understanding chemistry and mostly wrongly understood.
Understanding atomic weight, atomic number, atomic composition
Calculate concentration of thiosulfate ion, S2O3^2-, when 1.00 mL of .00500 M Na2S2O3 are added to experiment.
Use of MO-Theory and MO-diagram for Species of Nitrogen, N2 Nitrogen, N2, can ionize to form N2+ or add an electron to give N2-.
Calculate the mass of propylene glycol (C3H8O2) that must be added to 0.340 kg of water to reduce the vapor pressure by 2.88 torr at 40 °C.
Many dyes used in food products are classified a hazardous chemicals in their pure form. Why then can they be safely used in those food products?
Measuring Water Hardness.In an experiment for measuring water hardness in a water sample