A mixture of table salt (NaCl) and water has a total mass of 345 grams. Upon...
A mixture of table salt (NaCl) and water has a total mass of 345 grams. Upon analysis, it was determined that 48 grams of oxygen were present in the sample.
a) How many grams of each of the following MUST also be in the sample.
Hydrogen, Sodium, Chloride
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A mixture of table salt (NaCl) and
water has a total mass of 345 grams. Upon...
A 2.500 grams sample of a mixture of sodium carbonate (Na2CO3) and sodium chloride (NaCl) is...
A 2.500 grams sample of a mixture of sodium carbonate (Na2CO3) and sodium chloride (NaCl) is dissolved in 25.00 mL of 0.798 M HCl (hydrochloric acid). Some acid will remain after the treatment of the sample. If 28.7 mL of 0.108 M NaOH is required to titrate the excess HCI then how many moles of sodium carbonate were present in the original sample? Hint: The moles of Na2CO3 present is equal to one- half the number of H30* moles and...
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17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
Section Laboratory Caleulations 1.A.0 ml sample of NaCl solution was 5057 grams. When the water was...
Section Laboratory Caleulations 1.A.0 ml sample of NaCl solution was 5057 grams. When the water was evaporated, the residual salt weighed 1.285 grams (10 pts) Fill in the data table below using the information given Mass of salt solution Mass of NaCl Mass of water Volume of solution Using the information from the data table, calculate: a. The % weight-weight of NaCl in the solution. b. The grams of NaCl per 100 grams of water. C. The molarity of the...
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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) %
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Gravimetric Analysis of a Chloride Salt QUESTIONS 1. The following percentages of chloride were found: 32.52%, 32.14%, 32.61%, and 32.75% (a) Find the mount, the standard deviation, and the relative standard deviation (b) Can any result be discarded? 2. Barium can be analyzed by precipitating it as BaSO, and determining the mass of the precipitate. When a 0.269 g sample of a barium compound was treated with excess H,SO, 0.0891 g of BaSo, formed. What percentage of barium is in...
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.
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A 2.500 grams sample of a mixture of sodium carbonate (Na2CO3) and sodium chloride (NaCl) is dissolved in 25.00 mL of 0.798 M HCl (hydrochloric acid). Some acid will remain after the treatment of the sample. If 28.7 mL of 0.108 M NaOH is required to titrate the excess HCI then how many moles of sodium carbonate were present in the original sample? Hint: The moles of Na2CO3 present is equal to one- half the number of H30* moles and...
17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
Section Laboratory Caleulations 1.A.0 ml sample of NaCl solution was 5057 grams. When the water was evaporated, the residual salt weighed 1.285 grams (10 pts) Fill in the data table below using the information given Mass of salt solution Mass of NaCl Mass of water Volume of solution Using the information from the data table, calculate: a. The % weight-weight of NaCl in the solution. b. The grams of NaCl per 100 grams of water. C. The molarity of the...
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) %
Gravimetric Analysis of a Chloride Salt QUESTIONS 1. The following percentages of chloride were found: 32.52%, 32.14%, 32.61%, and 32.75% (a) Find the mount, the standard deviation, and the relative standard deviation (b) Can any result be discarded? 2. Barium can be analyzed by precipitating it as BaSO, and determining the mass of the precipitate. When a 0.269 g sample of a barium compound was treated with excess H,SO, 0.0891 g of BaSo, formed. What percentage of barium is in...
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.
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