2015 (27) April (3) March (7) February heat capacity chart (8) January (9) 2014 (74)

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1) X mass at 25 C in a saturated aqueous solution of concentration 20%. According to the same temperature, I. The resolution X 20g / 100g water. II. 200 ml of water and 50 grams of a saturated solution X prepared using solid. III. X can be dissolved in 150 grams of water content is at most 30 grams. Which of the judgment is correct? (D water = 1 g / ml) A) Single IB) Solo II C) I and II D) I E and III) I, II, or III, 2) of 20 C wherein the solubility of NaCl salt 36 grams NaCl / 100ml water. Accordingly, until 20 C, prepared with the above mentioned quantities, relating to non-solid solution at the bottom, I. Mass percent concentration right from large to small 3, 2, 1. II. 3. The solution is a supersaturated solution prepared in special circumstances. III. 2 1 concentrated solution of the solution is diluted from 3.çözelti. Which of the judgment is correct? A) Single IB) I and II C) and II D) II and III E) I, II and III 3) at 25 C, mass% 15 200 grams of mass of a 20% 150 grams, X is prepared by solid aqueous solution are mixed. Accordingly, on the new solution at the same temperature, I. contains 60 grams of solute. II. 15% concentrated solution is diluted to 20% solution. III. Transmits electrical current. Which is certainly true of the judiciary? heat capacity chart A) Single IB) Solo II C) I and II D) II and III E) I, II and III, 4) X and Y in the chart above temperature dependence of the solubility of the pure solid is shown. Accordingly, which of the following is false? A) increased with increasing temperature resolution X, Y, Z-isomer that is decreasing. B) X and Y are 0 C wherein the mass percent of a saturated heat capacity chart aqueous solution concentration is equal. C) at 0 C a saturated aqueous solution of 260 grams of Y when the temperature is 30 C removed 20 grams of Y solid precipitates. D) To prepare a saturated aqueous solution at 70 C X 480 grams, 120 grams of X times must. E) X is at 20 C in 280 grams of a saturated aqueous solution of temperature 90 C is removed, a further 60 grams of solution X solid dissolved. 5) some solid solubility at various temperatures in the table above (g / 100g water) was added. Accordingly, which of the following is false? A) Solid sequence of formulas with NaCl, NaNO 3 and Na 2 SO 4 tr. B) the temperature of NaCl to make the unsaturated saturated aqueous solution may be reduced. C) Na 2 SO 4 The temperature of the saturated solution at a given temperature than a soluble amount of Na 2 SO 4 is dropped. D) is inversely proportional to temperature nano 3 resolution. E) nano 3 until the temperature of 50 C 213 grams of a saturated aqueous solution is dropped to 40 C, 9 g NaNO 3 precipitates. 6) Article X of the resolution of 1 atmosphere pressure - temperature change heat capacity chart is as shown in Fig. Pressure, according to well known that a great influence on the solubility of the substance X, I. X material gas. II. Simultaneously increasing both temperature and pressure, X increases the water solubility. III. 40 C, 1 atmospheric pressure X in a saturated aqueous solution heat capacity chart of 100.0032 grams. Which is certainly true of the judiciary? A) Only IB) Solo II C) III only D) I and II E) I and III, 7) Which of the following statements heat capacity chart is true about the Resolution?
A) I, IV and V is related to the effect heat capacity chart of temperature on the solubility.
The amount of solute in solution I.
Tags: supersaturated, pressure, decompression sickness in divers, unsaturated, saturated, having gas outlet when opening the lid of the soda bottle, mix, temperature, solution-soluble
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