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A 14.23 g mixture of sugar (C_12H_22O_11) and table salt (NaCI) is dissolved in 177 g...
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.
Table salt, NaCl(s), and sugar, C_12H_22O_11(s), are accidentally mixed. A 4.00-g sample is burned, and 1.70...
Table salt, NaCl(s), and sugar, C_12H_22O_11(s), are accidentally mixed. A 4.00-g sample is burned, and 1.70 g of CO_2(g) is produced. What was the mass percentage of the table salt in the mixture?
When 0.49 g of a molecular compound was dissolved in 20.00 g of cyclohexane, the freezing...
When 0.49 g of a molecular compound was dissolved in 20.00 g of cyclohexane, the freezing point of the solution was lowered by 3.9 degree C. Determine the molecular mass of this compound. The molar freezing point depression constant of cyclohexane 20.4 degree C/m. (K_f = 20.4 degree C/m)
14. 60) A mixture of NaCI and sucrose (CiaH20) NaCl in the mixture. Assume that the...
14. 60) A mixture of NaCI and sucrose (CiaH20) NaCl in the mixture. Assume that the van't Hoff factor (i) for NaCI is 2. ) of combined mass g is dissolved in enough water to make a 250 ml solution. The osmotic pressure of the solution is 7.32 atm at 23°C. Calculate the mass percent of
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What...
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
A 3.314−g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10H8) is dissolved in 45.40...
A 3.314−g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10H8) is dissolved in 45.40 g of benzene (C6H6). The freezing point of the solution is 2.00 ° C. Calculate the mass percent of the mixture.
30. How many Tablespoons of table salt (NaCI) would you need to add to 2 quarts...
30. How many Tablespoons of table salt (NaCI) would you need to add to 2 quarts of water to increase the boiling point by 5°C? (1 Tablespoon NaCl = 17.06 g; 1 quart-0.946 L; d(H2O) 1.0 g/mL) (a) 17 (b) 32 (c) 79 (d) 540 31 . A covalent compound with molar mass of 62.0 g/mol was dissolved in water at 20.0°C to yield a 2.00 L solution with an osmotic pressure of 524 torr. What mass of the compound...
A 1.00-9 solid sample containing a mixture of table salt (NaCl) and citric acid (H3C6H507, a...
A 1.00-9 solid sample containing a mixture of table salt (NaCl) and citric acid (H3C6H507, a triprotic acid) is dissolved in 15 mL of water. Titration of the acid solution requires 17.70 mL of 0.5602 M NaOH solution to reach the endpoint. Calculate the mass percent H3C6H5O7 in the solid mixture. (Number only) %
A solid consist of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid...
A solid consist of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 gof water, the freezing point of the solution is lowered by 5.44 degree C. What is the composition by mass of the solid? g NaNO3 g Mg(NO3)2
Determination of Molar Mass by freezing Point depression Not sure how to answer these two questions...
Determination of Molar Mass by freezing Point depression
Not sure how to answer these two questions
Calcium chloride, CaCI_2 is commonly used as road salt. If one mole of CaCI_2 is dissolved in 1 kg v of water, would the freezing point of the solution be greater than, less than, or the same as a solution prepared by dissolving one mole of table sugar (sucrose, C_12H_22O_11) in 1 kg of water? Explain your answer. A student followed our lab procedure...
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.
Table salt, NaCl(s), and sugar, C_12H_22O_11(s), are accidentally mixed. A 4.00-g sample is burned, and 1.70 g of CO_2(g) is produced. What was the mass percentage of the table salt in the mixture?
When 0.49 g of a molecular compound was dissolved in 20.00 g of cyclohexane, the freezing point of the solution was lowered by 3.9 degree C. Determine the molecular mass of this compound. The molar freezing point depression constant of cyclohexane 20.4 degree C/m. (K_f = 20.4 degree C/m)
14. 60) A mixture of NaCI and sucrose (CiaH20) NaCl in the mixture. Assume that the van't Hoff factor (i) for NaCI is 2. ) of combined mass g is dissolved in enough water to make a 250 ml solution. The osmotic pressure of the solution is 7.32 atm at 23°C. Calculate the mass percent of
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
30. How many Tablespoons of table salt (NaCI) would you need to add to 2 quarts of water to increase the boiling point by 5°C? (1 Tablespoon NaCl = 17.06 g; 1 quart-0.946 L; d(H2O) 1.0 g/mL) (a) 17 (b) 32 (c) 79 (d) 540 31 . A covalent compound with molar mass of 62.0 g/mol was dissolved in water at 20.0°C to yield a 2.00 L solution with an osmotic pressure of 524 torr. What mass of the compound...
A 1.00-9 solid sample containing a mixture of table salt (NaCl) and citric acid (H3C6H507, a triprotic acid) is dissolved in 15 mL of water. Titration of the acid solution requires 17.70 mL of 0.5602 M NaOH solution to reach the endpoint. Calculate the mass percent H3C6H5O7 in the solid mixture. (Number only) %
A solid consist of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 gof water, the freezing point of the solution is lowered by 5.44 degree C. What is the composition by mass of the solid? g NaNO3 g Mg(NO3)2
Determination of Molar Mass by freezing Point depression
Not sure how to answer these two questions
Calcium chloride, CaCI_2 is commonly used as road salt. If one mole of CaCI_2 is dissolved in 1 kg v of water, would the freezing point of the solution be greater than, less than, or the same as a solution prepared by dissolving one mole of table sugar (sucrose, C_12H_22O_11) in 1 kg of water? Explain your answer. A student followed our lab procedure...
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