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The interactions between water molecules can be define as electrostatic or coulombic where areas of positive charge are attracted to areas of negative charge. Depict a cartoon of how three molecules might be arranged in space given this electrostatic interaction
Consider the reaction when aqueous solutions of sodium sulfide and manganese(II) sulfate are combined.
air is about 78.0 nitrogen moleculesand 21.0 oxygen molecules. several other gases make up there maining 1 of air
A wildlife biologist is interested in testing the pH of the water in a lake. He obtains a 200. mL sample of the water and titrates this sample with a .050 M NaOH solution.
Starting with 2.5 grams of vitamin D3 and 10mg of palladium catalyst, how many millimoles of H2 will be necessary to hydrogenate all of the Carbon Carbon double bonds in D3?
What is the relationship between the atomic numbers and the ionic radius of the elements in a group.
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
Mixture also contains He (helium gas). determine the partial pressure of the He gas?
You have a sample that consists of 8.2 (+ or -)o.1mL of aqueous 239Pu solution. You measure two 10mL aliquots by liquid scintillation counting and get 3211.4 cpm and 3315.2 cpm, respectively.
You are titrating a 50.0mL solution of calcium hydroxide with phosphoric acid. if it takes 15.00mL of 0.0360 M phosphoric acid to reach the equivalence point what is the concentration (in M) of the calcium hydroxide solution
filtrate be used to transfer the residue when the desired product is solid
why conceptually does the ground state for the particle in the box model correspond to n1 while for the harmonic
At a given temperature, the equilibrium constant K for the reaction 2SO2(g) + O2(g) 2SO3(g) is 3.0 × 109. If 2.80 mol of SO2 and 4.06 mol of O2 are placed in a 1.78-L container.
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