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CaCN2 + 3H2O -> CaCO3 + 2NH3 . How much NH3 is produced if 187 g of CaCO3 are produced?
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?
Zn(s) + 2AgNO3(aq) --> 2Ag(s) + Zn(NO3)2(aq) When 216 g of silver was produced, determine the mole(s) of silver nitrate would be required.
Consider the reaction, 2 Al(OH)3 + 3 H2SO4 ->Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts?
A 0.50 sample of vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 are given off. what is the caloric value of the oil
Allyl sulfide, C6H10S, is a compound that has the odor of garlic. How many sulfur atoms are in 23.2 g of C6H10S?
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.
For the compound MX, Ksp is 2.00 × 10-11. The anion X- forms the weak acid HX (Ka = 1.8 × 10-5). Calculate the solubility of MX in 10.00 M strong acid.
A pipette is used to add 46 mL of 0.3 M Pb(NO3)2 to a 273.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8
How many moles of CO2 will be produced if 3.119 g of O2 are reacted completely?
How many grams of solute are needed to prepare 500.0 mL of a 0.375 M CH3OH solution.
The normal boiling point for acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr.
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