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Find out the amount number of mol of negative charge present in a sample of an ionic compound that contains 23.1 g of a 3- anion whose molar mass MM is 96.07 g/mol.
Calculate the molar heat of combustion of fructose using the data from this experiment. Since this experiment is carried out under conditions of constant volume, we are measuring ?E. Your answer should be in kJ/mol and entered to 3 sig. fig.
How mush heat energy is reuired to melt one ice cube in a soft drink to form liquid water at 0 degrees C, if the ice cube has a mass of 18.9 g?
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 15.0 L. How many moles of gas (n_2) remain in the cylinder
Draw the following compound. Be sure to specify the stereochemistry via wedge-and-dash bonds.
What is the total number of valence electrons that must be shown in the Lewis structure for magnesium fluoride B. How many dots would be shown in the Lewis symbol for phosporus. Use a number, not a word.
A cell that uses bromine to oxidize hydrogen H^+ under standard conditions at 298 K has a positive potential.
What is the half-life of a compound if 60. percent of a given sample of the compound decomposes in 54 min
What is the % of the R enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of R-carvone is -61
if iodine gas reacts with excess fluorine gas to produce 7.575g of iodine pentafluoride gas what was the pressure of
When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. The net chemical equation is Cu(2+)(aq) + 2OH(-)(aq) --> Cu(OH)2(s)
Non-Bridging Calcium-Oxide Ions, What weight percent of CaO should a glass be for 20% of the oxygen ions to be non-bridging, if the glass contains only SiO2 and CaO?
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