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1) Does absorbance increase or else decrease as the solution concentration of the absorbing substance increases and why?
2) Explain why is a calibration curve constructed? How?
3) Define how are percent transmittance and absorbance related algebraically?
Research and write about the history of Haber Process of producing ammonia. How did it address the Malthusian Threat? What was the Haber-Nernst Controversy (be sure to use Le Chatelier's Principle in the explanation)? How did Bosch ultimately come..
For a 0.25M solution of HF: a) Write the ionization equation, b) What will be the concentration of all species present, excluding water, when the reaction is at equilibrium?, c) What will be the pH, d) what will be the percent ionization
A gaseous mixture of O2 and Kr has a density of 1.180 g/L at 355 torr and 300. K. What is the mole percent O2 in the mixture?
State a balanced net ionic equation for the reaction that occurs between acetic acid as well as sodium hydroxide
What are the sources of error that could happen in the experiment of ''dumas method for determining the molecular weight of volatile liquids''
A 2.8x10-4 km of a gas a pressured of 25 psi when the temperature is 45c. Explain what the volume of the gas is if the pressure is increased to 960.69 torr as well as the temperature is increased to 320 c
Identify all of the spectator ions in the precipitation reaction below. Ca^2+ (aq) + 2Br^-(aq) + 2Li^+ (aq) + CO3^2- (aq) arrow to CaCO3 (s) + 2Li^+ (aq) + 2Br^- (aq)
what 2 substances undergo a physical change if the temperature is reduced from 50 degrees celcius to negative 50 degrees celcius. what is the physical change that takes place in each case.
the enthalpy change for converting 10.0 g of ice at -50.0 degc to water at 50.0 degc is kj. the specific heats of ice
Consider a sample of calcium carbonate in the form of a cube measuring 2.305in on each edge. If the sample has a density of 2.73cm^3 , how many oxygen atoms does it contain
The average concentration of sulfate ion in seawater is 2710 mg of sulfate ion per kg of seawater. What is the molarity of the sulfate ion if the density of the seawater is 1.025 g/mL?
Write the balanced formula unit equation for the reaction of tetraphosphorus decoxide, P4O10, with water to form an acid
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