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Calculate the molarity of a saturated solution of sodium hydrogen carbonate, NaHCO3 (aq) that contains 69.0 grams in 1.00 liter of solution.
Consider the Lewis Resonance structure for the chlorite ion. How many total structures can be drawn, and how many of those structures obey the octet rule?
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
a cylindrical glass tube 13.0 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 107.5g. Calculate the inner diameter of the tube in centimeters.
Sample has a mass of 0.171 g at a pressure of 761 mm Hg and a temperature of 32oC. What is the molar mass of the gas? R=0.0821 L atm / mol K
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg
Consider the following reaction: CO + 2H2= CH3OH, kp= 2.26 x 10^2 at 25C . Calculate delta G for the reaction at 25C under each of the following conditions.
why we call benzene phenyl and not benzyle when one hydrogen is removed because in case of alkanes we name them alkyl on the removal of one hydrogen atom.
To obtain the same antifreeze protection requires 76 of propylene glycol to replace each 62 of ethylene glycol. Calculate the mass of propylene glycol required to replace 7.00 of ethylene glycol.
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken
If a 220mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.11.0 , what is the average thickness of the sheet in meters.
A buffer is prepared by mixing 615 mL of 0.50 M formic acid, HCHO2, and 385 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
A student added 5.85g of KMnO4 to a beaker containing 150ml of 0.200 M KMnO4 solution. Calculate the molar concentration of the final solution. Assume volume remains constant.
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