Percent by mass of water in the solution
A sugar water mixture contains 45.8g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?
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What are the structures for glycylserine and seryglycine
The vapor pressure of dichloromethane,CH_2Cl_2, at 0 degrees C is 134 mmHg. The normal boiling point of dichloromethane is 40. degrees C. Calculate its molar heat of vaporization.
What is the energy of a photon emitted from an electron in a hydrogen atom when it jumps from the n = 7 to the n = 3 level?
For the equation below, identify the substance oxidized, the substance reduced, the oxidizing and reducing agent, and write the oxidation and reduction half reactions: 2H2 + O2 yields 2H2O
The pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 L to 0.10 L. What is the expected cylinder temperature if the gas was initially 15°C?
A weather balloon at Earth's surface has a volume of 3.9 L at 275 K and 775 mm Hg. if the balloon is released volume reaches 4.2 L at 711 mm Hg what is the temperature? Answer in units of K.
The enzymes used in this experiment are only a partially purified pyruvate kinase preparation. This is because complete purification would strip away co-factors and co-enzymes that are necessary for enzyme activities.
A solution is made by mixing 500 mL of .167 M NaOH with 500 mL of .1 M CH3COOH. Calculate the equalibrium concentrations of H+. CH3COOH, CH3COO-, OH- and Na+.
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