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Write three reactions for the oxidation of pyrite and explain how these can result in the production of acid waters that are enriched in trace metals and metalloids.
using a solution contains 10 ammonium by mass and hasnbsp density 0.99 gcm-3. determinenbsp hydroxyl and hydrogen ion
When the solution is found and titrated with aqueous sodium hydroxide, the endpoint is reached after the addition of 27.80 mL of base solution. How many moles of NaOH reacted?
A 1.95 gram sample of sodium sulfate hydrate lost 0.756 gram of water when heated to constant mass. What is the formula of the hydrate?
Calcium nitrate will react with ammonium chloride at slightlyelevated temperatures, as represented in the equation- Ca(NO3)2(s) +2NH4Cl(s) 2N2O(g) +CaCl2(s) + 4H2O(g)
Derive a relation for ( hint: Maxwell's relations will be helpful) to determine how entropy will change with pressure at constant temperature (δS/δp)t for a gas that behaves according to the following equation of state PV = nRT/a + P/b, where a ..
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
To calculate the number of molecules of a gas using ideal gas law and Avogadro's number - How many ozone molecules are present in 1.0 L of air under these conditions?
A 100.-L flask contains a mixture of methane, CH4, and argon at 25C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. Calculate the total kinetic energy of the gaseous mixture.
Problem- A 3.3 L sample of CO2(g) at 20.4 oC expands to what volume at 59.7 oC at a pressure of 1.07 atm
consider the following reactionpcl5g -gt pcl3g cl2g .at equilibrium pcl5 2.00 m and pcl3 cl2 1.00 m. if suddenly
Balance the following electrochemical equation for an acidic environment. HCl + Al3+ -----> ClO41- + Al
Problem- if a solution contain a mixture of Ba^2 and Ag^+ ions, write a short experimental procedure that would allow the two ions to be separated and includes a confirmatory test for verifying the presence of each ion.
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