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When 50.0 grams of silicon dioxide is heated with an excess of carbon, 32.2 grams carbonide along with carbon monoxide. What is the percent yield of silicon dioxide? How many grams of carbon monoxide gas are produced?
Man wishes to set aside money for his daughter's college education.
question calculate the mass of nitrogen dissolved at room temperature in an 98.0 l home aquarium. assume a total
Draw the structure of the product that is formed when 1-pentyne undergoes reaction with two equivalents of HCl.
A solution of 0.2113 g of water dissolves in 25.0 g of a solvent which freezes at 11.5 EC below the freezing point for the pure solvent. What is the Kf value for this solvent?
Ar is a solid below -189 oC with a face-centered cubic array of atoms and a supposed density of 2.29 g/cm3. Assuming that the atoms are spheres in contact along the face diagonal, what is the radius of a Ar atom
A11.6 g sample of a certain gas was introduced into a constant volume container at 25 °C. if the container were heated to 175 °C, how many grams of gas must be vented from the container to keep the pressure of the gas constant
A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentration of H+, CH3COO-, and CH3COOH at equilibrium. Ka for acetic acid= 1.8x10^-5.
What volume (in mL) will it occupy at the same pressure and 277 K? Round your answer to zero places past the decimal.
question sn2 reactions occur at different rates depending on the structure of the substrate in the reaction. would an
a solution is prepared by dissolving 197 g sucrose c12h22o11 in enough water to produce 1.20 l solution. what is the
The normal boiling point for acetone is 56.5 C. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone Hvap = 32.0 kJ/mol at this elevation
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K.
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