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Introductory Chemistry (6th Edition)
- The solubility of an ionic compound MX (molar mass = 346 g) is 4.63 X 10-3 g/L. What is Ksp for the compound?arrow_forwardThe solubility of an ionic compound M2X3 (molar mass = 288 g) is 3.6 x 10–17 g/L. What is Ksp for the compound?arrow_forward11. The structural formulae of two amino acids are shown below. || НООС - СH-CH, - CH-С -ОН NH2 Glutamic acid (glu) When glutamic acid dissolve in aqueous sodium hydroxide, monosodium glutamate (MSG) is formed, which is used as a flavor enhancer. Write an equation for the formation of MSG. Predict whether a solution of glutamic acid is acidic, basic or neutral. Explain your answer.arrow_forward
- A student titrates 20.0 mL of 1.0 M NaOH with 2.0 M formic acid, HCOOH (K, = 1.8 x 104). Hypochlorous acid is an unstable compound and one of the decomposition products is chlorine gas, Cl2. The composition of the acid lowers its concentration over time. What effect will the decomposition of one-fourth of the acid have on the agreement between the endpoint of the titration and the equivalence point during a titration with standard sodium hydroxide? It is impossible to determine The endpoint would be before the ideal equivalence point The endpoint would be after the ideal equivalence point The endpoint will rema eerthe ideal egvaleacepolntarrow_forwardDon Juan Pond in the Wright Valley of Antarctica freezes at-57 C. The major solute in the pond is CaCl 2 . Estimate the concentration (molality ) of CaCl 2 in the pond. k f =1.86^ C/marrow_forwardThe solubility of an ionic compound MX (molar mass = 436 g) is 6.43 x 103 g/L. What is the Ksp ?arrow_forward
- A saturated aqueous solution of silver perchlorate (AgClO4) contains 84.8% by mass AgClO4, but a saturated solution of AgClO4 in 60% aqueous perchloric acid contains only 5.63% by mass AgClO4. Explain this large difference using chemical equations.arrow_forwardwhich of the following aqueous soluctions contains the lowest amount of ions or molecules dissolved in water? 1.5L of 0.75M HBr03 1.0L of 2.0M CaBr2 2.25L of 1.75M KBr 1.5L of 2.0M CH3OH 500. mL of 2.25M K3PO4arrow_forwardAt 23°c, 85.0 grams of NaNO3(s) are dissolved in 100. Grams of H2O(I).arrow_forward
- The solubility of the hypothetical salt A3B2 is 3.9x10^-9 mol/L at a certain temperature. What is Ksp for the salt? A3B2 dissolves according to the equation. A3B2(s)-----> 3A2+ (aq)+2B3-(aq)arrow_forwardA fictional compound AX2 has a molar mass of 167.07 g/mol and a Ksp of 2.125e-11. It dissociates in water based on the equation: AX2(s) ↔ A²+ + (aq) + 2X (aq) Based on this information, label the statements below as true or false. True If more solid AX₂ is added to the system then [A²+] will increase. False If the solution is heated and the solubility decreases, then the heat of solution for AX₂ is endothermic. If soluble NaX is added to the system then [A²+] will increase. False True If more solid AX₂ is added to the system then [X] will decrease. True The molar solubility of AX₂ is less than 3.49E-4 mol/L. False If more soluble A(NO3)2 is added to the system then [X] will increase. True The mass solubility of AX₂ is greater than 1.46E-3 g/100mL H₂O. Submit Answer You have entered that answer before Incorrect. Tries 56/99 Previous Triesarrow_forward1) Describe how you would prepare a 500.00 mL portion of 0.25M calcium hydroxide solution starting with solid calcium hydroxide. (b) What is the pH of the solution? 2) Acetone has a vapor pressure of 183.0 mm Hg at 40 °C and a heat of vaporization of 30.8 kJ/mol. What is the vapor pressure of acetone at 25 °C? 3) (a) Calculate the molality (m) of a solution containing 75.0 gm of glycol (C2H&O2) in 250.0 gm of water. (b) What is the mass percent of glycol in this solution?arrow_forward
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