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The formula for the volume of a sphere is V=4(3.167)r^3/3. Assuming a spherical shape, calculate the mean diameter of a blood cell in centimeters.
Using the abbreviated noble gas notation write the ground state electron configuration of the following ion
That a supercooled gas eventually phase separates is consistent with the 2nd Law of Thermodynamics because the phase separation lowers the Helmholtz free energy of the system
what statement best describes the graph representing the integrated 1st order rate law
When methane is burned with oxygen, the products are carbon dioxide and water. If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen
At 25 degrees celsius how many dissociated H+ ions are in 167 mL of an aqueous sloution whose ph=12.07? hint find concentration of H+
Three liquids of different densities are mixed. Because they are not miscible (do not form a homogeneous solution with one other), they form discrete layers, one on top of the other.
15.0 moles of gas are in a 8.00 L tank at 21.0C. Calculate the difference in pressure between methane and an ideal gas under these conditions
pH will be greater than 7 at the equivalence point. C. titration will require more moles of base than acid to reach the equivalence point. D. pH will be equal to 7 at the equivalence point. E. titration will require more moles of acid than base to..
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
consider the expansion of 1L of gas orginally at 9 atm pressure to 1 atm pressure. the T remains constant at 25*C. Defining the gas as the system, calculate the work done on the system when
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
A student mixes four reagents together, thinking that the solution will neutralize each other. The solutions mixed together are 53.6 mL of 0.129 M hydrochloric acid, 104.1 mL of 0.215 M of nitric acid, 501.5 mL of 0.0126 M calcium hydroxide
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