A student dissolved 0.001 moles of Zn_3(PO_4)_2 in 1 liter of water. Determine the molar concentration...
1. If 1.70 x 10-4 moles of Agt(aq) dissolves per liter of water when AglO3 is dissolved, what is the Ksp for AgIO3 ? 2. If you have a solution of Cat2 that has a concentration of 0.050 M, and you adjust the pH of the solution to 8.00, will Ca(OH)2 precipitate. (Ksp for Ca(OH)2 = 6.5 x 106) 3. Determine the concentration of fluoride ion in a saturated solution of PbF2 (in moles/liter), if the Ksp = 3.6 x...
32 Using the following equation, determine the average concentration (moles per liter) of Ca concentration in Data Table 2 ions present in your water. Record the mol Ca2+ L 1 mol Ca2 mol EDTA 1 L EDTA x 0.010 L water 1 mol EDTA
2. A student wants to determine the concentration of phosphate ions in 10.0 mL of water. He prepares 4 solutions that contain a known amount of phosphate as shown in Table 1. He mixes these solutions plus the sample of water with H2SO4, ammonium molybdate and ANSA. The results are shown in Figure 1 below. The final volumes of all tubes are identical. TABLE 1 Solution # Amount of Phosphate (umoles) 0 20.0 50.0 80.0 Solution #1 Solution #2 Solution...
Molarity Help Determine the Molarity (M, moles solute / Liter of solution) of a solution formed when 1.734E6 µg Barium hydroxide is dissolved in water such that the final volume of the solution is 39.56 cL. Determine the Molarity (M, moles solute / Liter of solution) of a solution formed when 1.534 g Cobalt(II) hydrogen sulfate is dissolved in water such that the final volume of the solution is 375.6 mL. Determine the Molarity (M, moles solute / Liter of...
2. When a basic solution is dissolved in water, how and why does the concentration of H +ions change in the solution? ( two reasons) 3. What is the difference in H+ ion concentration between a solution that is pH 4 and a solution that is pH 8? If a solution has a pH of 6, express the concentration of H+ in moles/liter. 9. How are two monosaccharides joined to form a disaccharide? How are disaccharides digested?
Given the Ksp of Zn(OH)2 is 3.0x10-1, determine the Zn2 ion concentration when the pH of the solution is buffered to pH=12.00 (so that the hydroxide ion concentration is 0.010 M). 1. Zn(OH)2(s) A. [Zn2] 3.0x10-12 M B. [Zn2 3.7x10- M C. [Zn23.0x10-10 M D. [Zn2] 9.1x10-3 M E. [Zn2] 1.5x10-13 M Zn2 (aq) + 20H (aq) Ksp 3.0x10-16 2. When silver carbonate, Ag,COs, is mixed with water, it dissolves to some extent to form a saturated solution where the...
A student dissolved 4.00 g of Co(NO_3)_2 in enough water to make 100.0 mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275 mL of a final solution. How many grams of NO^-_3 ion are there in the final solution?
Calculate the Molarity (M, moles solute / Liter of solution) of a solution that is made by dissolving 3.456 µmoles of Cobalt(II) hydrogen sulfate in enough water to form a 432.1 cL solution. Determine the Molarity (M, moles solute / Liter of solution) of a solution formed when 2.134E-3 kg Aluminum chloride is dissolved in water such that the final volume of the solution is 0.4356 kL. Determine the Molarity (M, moles solute / Liter of solution) of a solution...
ANSWER ALL QUESTIONS!! 16 A certain salt has a molar solubility of 1.0X 104 moles/liter. The molar mass of this salt is 240 grams/mole. What mass of this salt will dissolve in 1 liter of water? A 240g B 24.4g C 2.4g D 0.24g E 0.024g F 2.4 X 10-ºg G 2.4 X 104g 17 What is the pH of a 0.1M weak monoprotic acid, HA, whose Ka= 10-5 HA(aq) <-> H+(aq) + A'(aq) A 1.0 B 2.0 C 3.0...
1.Determine the molarity of a solution that contains 8.4 moles of ethanol dissolved in 4.7 liters of solution. Answer to 2 decimal places. 2.Determine the mole fraction of ethanol, C2H5OH (Molar mass = 46.08 g/mol) when 13.4 grams of ethanol is dissolved in 96.1 grams of water, H2O (Molar mass = 18.02 g/mol).