Chemical oxygen demand, or COD, is a test that measures the amount of organic compounds in water. More specifically, the test is a process of decomposing pollutants in water after two hours of boiling the water in a solution of potassium dichromate. If the COD is high, the amount of pollu...
Energy diagrams areused to represent the change in energy for the molecules involved in a chemical reaction. The free energy is measured along the y-axis, and the reaction coordinate is plotted on the x-axis. The reaction coordinate indicates the progress of the conversion of reactants to pro...
Example 1: Calculate the temperature change that results from adding 250 J of thermal energy to 0.50 moles of mercury. Visualize the diagram of the Heat System and Surroundings with the arrow direction going into the system. Use the formula: _q = nCmΔT_ Since you are asked for the change...
How to Calculate Accurately the Mean Concentrations of Chemical Contaminants for Left Censored Environmental Data Sets.Compliance with environmental regulations requires that the daily mean concentrations, in wastewater discharge, of certain chemical contaminants, should not exceed the standards provided by ...
Consider the equilibrium N2(g) + O2(g) + Br2(g) <===> 2 NOBr(g) Calculate the equilibrium constant Kp for this reaction, given the following information (at 298 K): 2 NO(g) + Br2(g) <===> 2 NOBr(g) Kp = 0.49 2 NO(g) <===> N2(g) + O2(g) Kp = 2.1 x 1030...
Example 1: Calculate the temperature change that results from adding 250 J of thermal energy to 0.50 moles of mercury. Visualize the diagram of the Heat System and Surroundings with the arrow direction going into the system. Use the formula: _q = nCmΔT_ Since you are asked for the change...
Re: How to calculate the amount of a Reactant with Product and Percent yield? «Reply #1 on:September 22, 2020, 02:40:13 AM » Can you solve the problem, - using a simple stoichiometry - for a 100% yield? Logged ChemBuddychemical calculators - stoichiometry, pH, concentration, buffe...
Learn about the key differences between permeation and penetration in chemical protective clothing and how to calculate safe-wear times for chemical suits to effectively protect your workers from chemical hazards in the workplace. Read now!
Calculate the gram weight of the solute to make 1 liter of solution. You can calculate gram weight from the given molarity of the solution using the formula MW X molarity. A 2M solution of sodium chloride requires 58.4 grams X 2M, or 116.8 grams in 1 liter. ...
Calculate the gram weight of the solute to make 1 liter of solution. You can calculate gram weight from the given molarity of the solution using the formula MW X molarity. A 2M solution of sodium chloride requires 58.4 grams X 2M, or 116.8 grams in 1 liter. ...