g at 10. °C. Calculate the volume of mL The solubility in acetonitrile of molecular compound M is measured and found to be 0.133 a saturated solution of M in acetonitrile that would contain 450. mg of M at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits.

Predicting the products of dissolution The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compound is soluble in water. Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. Then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution. For example, you know water itself will be present, so you can begin each list with the chemical formula for water (H₂O). 6 Note: "major" chemical species are those present in concentrations greater than 10 compound potassium cyanide copper(II) iodide sucrose formula KCN Cul₂ C12H₂2O11 major species present when dissolved in water 0 0 0 × mol/L. On 3/5 0,0,... S ? allo 18 Ar

The following data table indicates the solubility of a substance. By examining the data presented, predict the solubility of the substance at 50 oC. Temperature (oC) Solubility (mM) 5 5.00 15 4.35 25 3.70 35 3.05 45 2.40   2.00 mM 1.40 mM 1.00 mM 2.10 mM 1.75 mM

Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23 g/mol), that was found in a well water sample at a concentration of 2.18 ppb. Assume the density of the well water sample is 1.00 g/mL.

Calculate the solubility at 25°C of CuBr in pure water and in 0.34M KI. Round your answer to 2 significant digits.

What is the solubility (in mol/L) of PbCl2 in a 1.150 M solution of NaCl? Use Ksp = 9.60 x 10-6 for PbCl2. Express your answer to 4 significant figures and do not use scientific notation. Your Answer:

1. If Mg(OH)2 has a Ksp of 7.0 × 10–6, then what is the solubility of Mg(OH)2 in pure water?  Give your answer in units of g/L.  Express the answer to 4 significant digits and do not use scientific notation. *Use the Ksp given here.  Do not look up your own value. 2. 200.0 mL of 0.005 M Na2CO3 are added to 200.0 mL of 0.002 M MgCl2. Does a precipitate form? [Ksp(MgCO3) = 6.82 × 10–6]   Question 2 options:   No, because Q = Ksp.   Yes, because Q > Ksp.   No, because Q < Ksp.   No, because Q > Ksp.   Yes, because Q < Ksp. 3.In order for a precipitate of PbBr2 to form, what is the minimum concentration of Br- that must be present in a solution of 0.00050 M Pb(NO3)2.   The Ksp of PbBr2 is 2.20 × 10–6.

The solubilities of three salts in water are shown in the graph. 1000 Pb(NO,), 900 For each salt, determine how much will remain undissolved if 800 K,Cr.O, 500 g is mixed into a liter of pure water at 40 °C. One 700 significant figure is sufficient in each answer. 600 500 KCI 400 Pb(NO,),: g 300 200 100 KCI: 10 20 30 40 50 60 70 80 90 100 Temperature (°C) K, Cr,O;: g Solubility (g/L)

Be sure to answer all parts. The solubility of an ionic compound M2X3 (molar mass = 287 g) is 6.60 × 10 17 What is Kp for the compound? ds. X 10 (Enter your answer in scientific notation.)

Part A How many moles of solid sodium fluoride should be added to 5.0 L of a saturated solution of barium fluoride, BaF2, at 25 °C to raise the fluoride concentration to 0.029 mol/L ? Express your answer to two significant figures and include the appropriate units. n = 0.11 ? moles Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining