Chemistry
calculate the change in freezing point if we added 620 g of table salt to 400 G of distilled water
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SHOW ALL WORK AND STEPS NO HAND WRITTEN WORK B.) calculate molarity of the solution 2....
SHOW ALL WORK AND STEPS NO HAND WRITTEN WORK
B.) calculate molarity of the solution
2. An unlabeled bottle contains an unknown potassium halide salt, KX. A student must determine the identity of the salt of KX yields dissolved in 24.65 g of distilled water, the freezing point of the resulting solution is-1.01 °C. The freezing point of the distilled water is determined to be +0.02°C. by using freezing point depression data. Because KX is a strong electrolyte, one mole...
Pre-Laboratory Questions 1. The freezing point of 20.024 grams of distilled water was determined by recording...
Pre-Laboratory Questions 1. The freezing point of 20.024 grams of distilled water was determined by recording a thermogram (see plot below). 1.006 grams of an unknown, nonelectrolyte compound was added to the water, and a second thermogram was recorded to determine the freezing point of the solution. Freezing Point Curves for Water and Unknown Nonelectrolyte Temperature, c -Water -0.270 °C Time, s a. Determine the freezing point depression, Tg, for the unknown solution. b. Determine the molality, m, of the...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added? volume of water 222 mL How many grams of chlorine gas are needed to make 5.30 x 10 g of a solution that is 1.20 ppm chlorine by mass? g Cl mass Classify each compound as a strong electrolyte, weak electrolyte, or nonelectrolyte. Strong electrolyte Weak electrolyte Nonelectrolyte H,SO (NH,),S H,CO, Classify the mixtures...
A 11.56 g mixture of sugar (C_12H_22O_M) and table salt (NaCl) is dissolved in 203 g...
A 11.56 g mixture of sugar (C_12H_22O_M) and table salt (NaCl) is dissolved in 203 g of water. The freezing point of the solution was measured as -2 57 degree C Calculate the mass percent of sugar in the mixture. A list of K_t values can be found here.
A 14.23 g mixture of sugar (C_12H_22O_11) and table salt (NaCI) is dissolved in 177 g...
A 14.23 g mixture of sugar (C_12H_22O_11) and table salt (NaCI) is dissolved in 177 g of water. The freezing point of the solution was measured as -3.41 degree C. Calculate the mass percent of sugar in the mixture. A list of K_f values can be found here Number %
5 g of molten NaCl is at melting temp. The salt is added to 25 mL...
5 g of molten NaCl is at melting temp. The salt is added to 25 mL of water at 25 C in a coffee cup calorimeter. The salt becomes solid and the temp of water increases to 47.9C. a.) calculate amount of heat transferred in Joules b.) is the freezing of salt endothermic or exothermic? c.) calculate the moles enthalpy of fusion for NaCl in kJ/mol
help me out please lland 2.) You have a new set of automobile radiators to test,...
help me out please
lland 2.) You have a new set of automobile radiators to test, but had forgotten to obtain antifreeze/radiator coolant to do the test. Let's say your test radiators are cheap/disposable. Based on the material that you covered in Chapter 8 (colligative properties), you know that you can use salt or sugar to increase the boiling point or lower the freezing point. Therefore, you attempt to do a quick-and-crude test on the radiators using ordinary Table Sugar...
Question 1. A 2.700×10−2M solution of NaCl in water is at 20.0∘C. The sample was created...
Question 1. A 2.700×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL. a.)Calculate the molality of the salt solution. B.) Calculate the mole fraction of salt in this solution. C.) Calculate the concentration of...
Name the following complex ions. formula name (Ti(oh).] 0 [a(co,), [Feci, Х 5 ? Four liquids...
Name the following complex ions. formula name (Ti(oh).] 0 [a(co,), [Feci, Х 5 ? Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points For example, select 'l' in the second column next to the liquid with the lowest freezing point. Select 2 in the second column next to the liquid with the next higher...
27 of 28 Review | Constants penVellumHMAC=056d4e636002559b3823831e5008538910001 с Part A 19 AZ Calculate the freezing point...
27 of 28 Review | Constants penVellumHMAC=056d4e636002559b3823831e5008538910001 с Part A 19 AZ Calculate the freezing point of the solution 280 g of CH3OH, a nonelectrolyte, added to 465 g of water. Express your answer using three significant figures. Request Answer the freezing point = Submit ace art B he boiling point of the solution 280 g of CH, OH, a nonelectrolyte, added to 465 g of Pearson Part B Calculate the boiling point of the solution 280 g of CH3OH,...
SHOW ALL WORK AND STEPS NO HAND WRITTEN WORK
B.) calculate molarity of the solution
2. An unlabeled bottle contains an unknown potassium halide salt, KX. A student must determine the identity of the salt of KX yields dissolved in 24.65 g of distilled water, the freezing point of the resulting solution is-1.01 °C. The freezing point of the distilled water is determined to be +0.02°C. by using freezing point depression data. Because KX is a strong electrolyte, one mole...
Pre-Laboratory Questions 1. The freezing point of 20.024 grams of distilled water was determined by recording a thermogram (see plot below). 1.006 grams of an unknown, nonelectrolyte compound was added to the water, and a second thermogram was recorded to determine the freezing point of the solution. Freezing Point Curves for Water and Unknown Nonelectrolyte Temperature, c -Water -0.270 °C Time, s a. Determine the freezing point depression, Tg, for the unknown solution. b. Determine the molality, m, of the...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added? volume of water 222 mL How many grams of chlorine gas are needed to make 5.30 x 10 g of a solution that is 1.20 ppm chlorine by mass? g Cl mass Classify each compound as a strong electrolyte, weak electrolyte, or nonelectrolyte. Strong electrolyte Weak electrolyte Nonelectrolyte H,SO (NH,),S H,CO, Classify the mixtures...
A 11.56 g mixture of sugar (C_12H_22O_M) and table salt (NaCl) is dissolved in 203 g of water. The freezing point of the solution was measured as -2 57 degree C Calculate the mass percent of sugar in the mixture. A list of K_t values can be found here.
A 14.23 g mixture of sugar (C_12H_22O_11) and table salt (NaCI) is dissolved in 177 g of water. The freezing point of the solution was measured as -3.41 degree C. Calculate the mass percent of sugar in the mixture. A list of K_f values can be found here Number %
help me out please
lland 2.) You have a new set of automobile radiators to test, but had forgotten to obtain antifreeze/radiator coolant to do the test. Let's say your test radiators are cheap/disposable. Based on the material that you covered in Chapter 8 (colligative properties), you know that you can use salt or sugar to increase the boiling point or lower the freezing point. Therefore, you attempt to do a quick-and-crude test on the radiators using ordinary Table Sugar...
Name the following complex ions. formula name (Ti(oh).] 0 [a(co,), [Feci, Х 5 ? Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points For example, select 'l' in the second column next to the liquid with the lowest freezing point. Select 2 in the second column next to the liquid with the next higher...
27 of 28 Review | Constants penVellumHMAC=056d4e636002559b3823831e5008538910001 с Part A 19 AZ Calculate the freezing point of the solution 280 g of CH3OH, a nonelectrolyte, added to 465 g of water. Express your answer using three significant figures. Request Answer the freezing point = Submit ace art B he boiling point of the solution 280 g of CH, OH, a nonelectrolyte, added to 465 g of Pearson Part B Calculate the boiling point of the solution 280 g of CH3OH,...
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