What concentration of x would be required for transmittance
A solution that was 3.78 x 10-3 M had a transmittance of 0.212 when measured in a 2.00-cm cell. what concentration of x would be required for the transmittance to be increased by a factor of 3 when a factor of 3 when a 1.00-cm cell was used?
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A 40.0 g sample of solid ammonium carbonate is placed in a closed evacuated 3.00 L flask and heated to 400 degrees C. Write the kp equilibrium constant expression for the reaction.
Naturally occurring silver contains 107Ag (amu 106.91) and 109Ag (amu 108.90) with mass percentages of 51.840% and 48.160%, respectively. What is the atomic mass of this mixture?
A new battery's voltage may be acceptable or unacceptable. A certain flashlight requires 2 batteries, so batteries will be independently selected and tested until 2 working ones are found. Assume that 89 percent of all batteries have acceptabl
A student placed 14.5 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then shaken until the
what concentration of x would be required for the transmittance to be increased by a factor of 3 when a factor of 3 when a 1.00-cm cell was used?
How to connect two n channel mosfet and then how we can measure the surface potential between its common drain point?
Determine the work done by a 1-lb fluid system as it expands slowly within a piston-cylinder arrangement from an initial pressure and volume of 80 psia.
25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.4°C is mixed with 32.1 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508g/L at 25C and 721mmHg?
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