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Problem- NaF has a face-centered cubic unit cell in which the F- anions occupy corners and face centers, while the cations fit into the holw between adjacent anions. What is the density (in g/cm^3) if the ionic radii of Na+, F- ions are 102.9 pm and 136.0 pm, respectively? Hint: notice that the cation and anion touch each other and together make up the side of the cube.
Determine the solution for the above problem express your work in detail
What are the freezing point and boiling point of an aquenous solution of 15.5g glucose (C6H12O6) dissolved in 150 g of water?
calculate the amount of heat transferred when 46.0 g of {rm{CH}}_3 {rm{OH}}(g) is decomposed by this reaction at constant pressure.
While 50 g of acetylene is allowed to react with excess oxygen what is the percentage yield of carbon dioxide
a solution is prepared by mixing 50.0 ml of 0.17 m pbno32 with 50.0 ml of 1.9 m kcl. calculate the concentrations of
how many kilocalories are needed to heat the 1700kg of water from 56 degrees fahrenheit to 167 degrees fahrenheit?
Calculate the molarity of a hydrochloric acid solution that is 18.25% HCl by mass and has a density of 1.20 g/mL.
Calculate the energy in joules and calories lost when 10.0 gm ethanol, {C_2H_5OH}, cools from 62.5 0C to -46.0 0C?
Question- Some of the common bases used as the active ingredient in commercial antacid tablets are listed below. Calculate the number of milliliters of 0.100 M HCl solution that could be neutralized by 1.00 g of each of these substances. Show your..
Calculate the biological standard Gibbs energies of reactions of the following reactions and half-reactions: (a) 2 NADH(aq) + O2(g) + 2 H+(aq) ? 2 NAD+(aq) + 2 H2O(l) E? = + 1.4 V
Propose a synthetic route for the conversion of 1-methylcyclohexene into 3-methylcyclohexene (note that the easiest route is probably 2 steps, an addition followed by an elimination).
Problem- Melting point of pure solvent W is 63 C. When 0.500 grams of benzoinc acid is added to 8.200 grams of solvent W the new freezing point is 58.5 C. Find the molal freezing point depression constant for solvent W
What weight of malononitrile would be recovered by extraction with (a) three 100-mL portions of ether; (b) one 300-mL portion of ether.
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