What ph is required to precipitate
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
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Calculate the molar concentration of a solution prepared by dissolving 5.4 g of sodium sulfate (MW = 142) in enough water to make 500 ml of solution ?
Write the balanced net ionic equation for the reaction that occurs when 0.1 M solutions of copper(II) sulfate and calcium perchlorate are mixed.
What is the volume of 340. mL of a sample of gas at 55.0°C and 740. mm Hg if the conditions are adjusted to STP? Assume the amount of gas is held constant.
Today is your birthday and you are now 37! You are planning your retirement and have decided that you can save $8,000.00 per year to go toward your retirement. The plan is to make your first deposit one year from today. You found a mutual fund that i
A gas sample has an original volume of 700 ml when collected at 750 mm and 25°C. What will be the volume of the gas sample if the pressure increases to 810 mm and the temperature increases to 30°C?
A solution of ammonia and water contains 1.60×1025 water molecules and 7.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
The solid and toluene together weigh 58.88 g. The density of toluene at the temperature of the experiment is 0.864 {g/mL}. What is the density of the solid?
You are thinking of investing in a stock that is selling for $60 and that you think will go up in price over the next six months. The six-month call option with exercise price = $60 sells for a premium of $5. The risk-free rate is 1% annually. Con
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