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You folded your filter paper and weighed it on the analytical balance. You then tore off the corner, inserted filter paper in the funnel, and filtered your BaSO4 precipitate. How does this affect the percent sulfate you calculated; too low, too high, no effect?
Sea-level atmospheric pressure is approximately 14.7 pounds per square inch. From this fact, we can deduce that a column of air one square inch in cross-section, measured from sea level to the top of the atmosphere
What is the formula of the zinc sulfate hydrate? name this compound
Write equations for the reactions for the reactions between carbon dioxide and the following compounds. Remember to include the states of all reactants of all reactants and products in your equations.
the solubility f suberic acid is 0.14g100ml of water or 0.56g100ml of ether. calculate the volume of ether needed to
Mixture of equal amounts of both enantiomers of given compounds does not rotate the plane of polarized light. (e) Racemic mixture has the same melting point as both corresponding enantiomer.
The average C--H bond energy in CH4 is 415 kJ/mol. Use the following data to calculate the average C--H bond energy in ethane (C2H6; C--C bond), in ethene (C2H4; C=C bond), and ethyne (C2H2; C (triple bond) C).
sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 551g of NaOH (s) per liter of solution. Calculate the molarity of this saturated NaOH (aq) solution.
the appropriate number of significant figures. Use leading zeros if appropriate.
calculate the amount of heat required to heat a 3.9 gold bar from 27 to
What concentration of SO32- is in equilibrium with Ag2SO3(s) and 7.10 × 10-3 M Ag. The Ksp of Ag2SO3 can be found here.
A solution is 89.8% by volume benzene(C6H6) in carbon tetrachloride at 20 degrees C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and it's density is 0.87865 g/cm^3;
Calculate the molar solubility of calcium oxalate, CaC2O4, in a solution that has been buffered so that the pH is constant and equal to 4.00. The solubility product for calcum oxalate is 1.7 x 10-9.
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