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Problem- Extension to Lab 3-1 Identify the visible absorption spectrum of an aqueous solution of sugar. 3 charts are shown a.Absorbance at 2.0, b.absorbance at 0, and c.absorbance curve at 1 trending down to 0 all on the 400 to 700 scale. So if glucose is transparent to visible light at 400-700 wv. What would absorbance would be?
State your answer as a chemical formula.
how many liters of the antifreeze ethylene glycol c2h6o2 would you add to a car radiator containing 6.50 l of water if
In a reaction involving reactants in the gas state, how does increasing the partial pressures of the gases affect the reaction rate
The enthalpy of formation of ethanol, C2H5OH, is 277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
Write equations for the folowing seperations. indicate any condition required for the reactions to occur, such as p.H 5. Fe2+ from Cr3+ ions
what is the bond angle expected around the central atom for each of the following compounds a of2 b bf3 c
Using noble gas (n-1) dx representations write the outer electron configuration for the following ions
Calculate the vapor pressure of water, in torr, above a solution prepared by dissolving 60.20 g of PbCl4 in 421.0 g of water at 343.0 K. The vapor pressure of pure water at 343.0 K is 233.7 torr.
Suppose a student creates a solution by dissolving 0.5095 g of a non-dissociating, non-volatile unknown solute in 15.58 g cyclohexane. The freezing point change is -2.0 Celsius. Calculate the number of moles of solute in the solution
If human height were quantized in one-foot increments, what would happen to the height of a child as she grows up.
When the temperature is increased from 164.5°C to 179.0°C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction?
Consider a separation train consisting of two distillation columns which are designed to separate a three componentmixture of benzene, toluene, and xylene into three streams, each rich in one of the species asshown below.
The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution?
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