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What masses of sodium chloride,magnesium chloride, sodium sulfate,calcium sulfate, calcium chloride, potassium chloride, and sodium bicarbonate are needed to produce 1 L of arificial seawater? The required ionic concentrations are Na+=3.14M; K+=.0090M; Mg2+ =.0662M; Ca2+=.0125M, HCO3-=.0020M, CL-=3.18M; SO4 2-=.0623M
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.2 g sample of CaCl2 is dissolved in 106 g of water, with both substances at 25.0°C.
How many milliliters of a 235 mL solution of 1.5 M AlCl3 must be used to make 61 mL of a solution that has a concentration of 0.5 M Al3+?
Find the Qsp if The solubility product of Ag 2 CO 3 =6.2 × 10-12. Also determine whether a precipitate forms in the solution (Assume 20 dropsper milliliter.)
Suppose the pH of the water is 4.67 and that the concentration of iron(II) in the water is 5.17x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
At a certain temperature, the half life of SO2Cl2 is 7.5 x 10^2 min. Consider a sealed flask with 122.0 g of SO2Cl2. How long will it take to reduce the amount of SO2Cl2 in the sealed flask to 45.0g?
Suppose 50.0 ml of 0.25 m COCL2 solution is add to 25.0ml of 0.350 m NiCl2 solution calculate the concentration, in moles per liter , of each of the ions present after mixing . assume that the volumes are additive.
Which is predicted to be the most ionic substance?
would the equilibrium constant for the formation of Cu(OH)2 (s) be greater or lesser than the equilibrium constant for the formation of Cu(NH3)4^2+ (aq)? Please explain your reasoning.
Gold sells for $1120/oz. One ounce is equal to 28.35g. The molar mass of gold is 196.97g/mol. 1 moldovian franc contains 0.567g of gold. If 1 franc = $1.42, how many atoms of gold are presents in 0.010 moldovian francs?
describe the crystal lattic structures you examined,indicating the number of positine ions surrounding each negative ion,and vice versa
Calculate the pressure exerted by 1 mole of CO2 confined in 22.45L at 298K using van der waals
What is the mass of air in the cylinder? What is the temperature in the cylinder when the volume reaches 4.00 in3?
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