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Fish are sensitive to Se concentrations over 0.04 mg/L. The farmer agrees not to use more water than will keep the stream selenium level below this critical concentration. How much water can the farmer withdraw from the stream to use for irrigation?
What is the mass of the product after the reaction between 250 mg of trans-cinnamic acid and 0.6 g of pyridinium bromide perbromide with 5% of impurities in 6 mL of acetic acid. Yield is 90%
If 0.100 mol of argon gas occupies 2.15 L at 725 mmHg, what is the temperature in degrees Celsius
A hot-air balloon has a volume of 875 L. What is the original temperature of the balloon if its volume changes to 955 L when heated to 56 degrees celcius
what is the proper technique to measure the temperature of a liquid in a beaker with a thermometer?
Iodobenzene(C6H5I, bp 188C) steam distills at 98.2. How many molecules of water are required to carry over 1 molecule of iodobenzene. How many grams os water per gram of iodobenzene
if 6.oog of nitrogen gas is introduced into an evacuated 2.00L flask at 28*C, what is the pressure inside the flask?
How much energy (in kilojoules) is required to convert 270 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
A solution of acid was found to have a hydrogen ion concentration of 0.03 mol dm-3 what is the pH of the solution?
molecular equation, complete ionic equation, and net ionic equation for: Sodium carbonate + sulfuric acid Cadmium chloride + sodium hydroxide Hydrochloric acid + sodium hydroxide Ammonium chloride + sodium hydroxide Sodium acetate + sodium hydroxi..
At STP, 50.0 mL of a gas weighs 0.301g and is found to be 47.4% sulfur and 52.6% chlorine. What is the molecular formula of the gas
how many grams of solute are in the solution 498 mL of a.850 M Na2So4?
Consider the following reduction potentials: Cu2+ + 2e- -> Cu E° = +0.34 V Pb2+ + 2e- -> Pb E° = -0.13 V For a galvanic cell employing the Cu, Cu2+ and Pb, Pb2+ couples, calculate the maximum amount of work that would accompany the reaction of one..
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