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Question - Chemistry Environmental Chemistry Problem
A solution contains 45 mg/L of barium (Ba2+). A consultant has suggested that the Ba2+ could be removed from solution by converting it to solid barium sulfate, BaSO4(s). To accomplish this, they proposed adding enough Na2SO4 to the solution to convert all the Ba2+ to BaSO4(s), plus an extra 5 mg/L SO42- as a safety factor.
What is the mass of solids (in kg) that forms if all the Ba2+ precipitated? Assume 1,000 L volume.
What is the pH of the solution at the equivalence point for the titration of 100 mL of a .786 M HCO2H solution with a .786 M Solution of sodium Hydroxide? Formic acid has a Ka=1.80*10^-4
What is n in the Born expression for the non coulomb repulsion energy. What are typical values for n
draw the structure of a by product that could be formed whenan aldehyde reacts with acetophenone. provide a detailed
At constant pressure 1.60 kJ of heat is evolved when cd.e grams of ethane burned. Write the thermochemical equation for this reaction, including labels for the all states of all reactions and products. Your GU ID number is G00071922
Determine the atomic packing factor (APF) of the simple hexagonal crystal structure assuming the lattice parameter a is equal to 2R and the lattice parameter c is equal to 1.5 a. Assume one atom on each lattice point
How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18J(g*C). can someone explain this in detail. other descriptions don't answer this well and im lost when i try and do it
Explain why in words and with pictures/other structures, if appropriate (using arguments based on relative charge stability). You do not need to draw a free energy versus reaction coordinate diagram.
Evaluate the opportunities for the development of research using biogenetic therapeutic cancer data and apply its implications for action research regarding the non-Hodgkin's Lymphoma form of cancer.
How many milligrams of NNED will need to be added to make 150 milliliters of solution?
An unknown gas effuses at a rate of 86.6 mol/hr. Under similar conditions, I2 effuses at a rate of 30.4 mol/hr. What is the molar mass of the compound.
What's the mass of sodium oxide produced if 1.5 g of sodium reacts with excess gaseous oxygen. Write the balanced equation.
Tritium, 3H, undergoes beta decay with a decay constant of 5.63 x 10-2 yr-1. How much time is required for a 1.00 g sample of tritium to decay to 0.250 g
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