1. A solution is found to be 0.0992% by weight AlF3. What is the concentration of...
1. A solution is found to be 0.0992% by weight AlF3. What is the concentration of the F1- ion expressed in ppm?
2. A 0.191-M solution of X (Mm = 185 g/mol) has a density of 1.155 g/ml. What is the molality of X in the solution?
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1. A solution is found to be 0.0992% by weight AlF3. What is the
concentration of...
A. 0.191 g of steel was dissolved in acid and diluted to 100 mL with water. The solution was found to contain 7.7 ppm Mn by atomic absorption analysis. What was the weight percent Mn in the steel? B....
A. 0.191 g of steel was dissolved in acid and diluted to 100 mL with water. The solution was found to contain 7.7 ppm Mn by atomic absorption analysis. What was the weight percent Mn in the steel? B. A multivitamin tablet with a label value of 13 mg Zn per tablet was dissolved in acid and diluted to 100 mL with water. What is the theoretical Zn concentration of the solution? Answer in ppm.
1. The LD50 of cocaine is 95.1 mg/kg. Calculate the concentration of a solution, in molarity...
1. The LD50 of cocaine is 95.1 mg/kg. Calculate the concentration of a solution, in molarity if they drank 1 liter of it. 100 g / 303.346 g/mol = 0.329 mol of cocaine. 0.329 mol/ 1 L= 0.329 M for molarity. Is this correct? 2. Find one other concentration unit [mass/mass (g/g) or mass/volume (g/ml) percentage, ppm or ppb] that would be toxic to a 85 kg person. Assume the density of a solution of your substance is the same...
1a. An aqueous solution has a Molarity of 1.632 M. The density of the solution is...
1a. An aqueous solution has a Molarity of 1.632 M. The density of the solution is (1.150x10^0) g/mL and the solute has a molar mass of (1.33x10^2) g/mol. What is the molality of this solution? 1b. An aqueous solution has a mass percent of solute of 18.4%. The density of the solution is (1.400x10^0) g/mL and the solute has a molar mass of (1.77x10^2) g/mol. What is the molality of this solution? 1c. An aqueous solution has a molality of...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of sucrose in 220 mL of ethanol. g) What is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and...
. What is the HCl concentration (molality) of the solution prepared by mixing 0.100 L of...
. What is the HCl concentration (molality) of the solution prepared by mixing 0.100 L of 4.729 M HCl that has a density of 1.0776 g mL ^-1 with 56.0 g of an HCl solution with a mole fraction of 0.1070?
An aqueous solution of silver nitrate, AgNO3, has a concentration of 2.54 mol/L and has a...
An aqueous solution of silver nitrate, AgNO3, has a concentration of 2.54 mol/L and has a density of 1.35 g/mL. What are the mass percent and molality of AgNO3 in this solution? Mass percent AgNO3 = % Molality AgNO3 = mol AgNO3/kg H2O
A solution of sulfuric acid (mm = 98.1g/mol) is 21% by weight and has a density of 1.20g/ml. Calculate the molarity and...
A solution of sulfuric acid (mm = 98.1g/mol) is 21% by weight and has a density of 1.20g/ml. Calculate the molarity and the molality(mol/kg H2O) of sulrfuric acid solution.
A solution of acetic acid, CH3COOH, has a concentration of 0.210 M and a density of...
A solution of acetic acid, CH3COOH, has a concentration of 0.210 M and a density of 1.0000 g mL^-1. What is the molality of this solution?
what is the molality of a solution whch is 6.09 M ethyl glycol (MM=62.07g/mol) in water...
what is the molality of a solution whch is 6.09 M ethyl glycol (MM=62.07g/mol) in water if the density of solution is 1.04 g/mL?
Concentrations of solute in solvent, whether in saturated solutions or not, can be expressed in many...
Concentrations of solute in solvent, whether in saturated solutions or not, can be expressed in many ways (molarity, molality, ppm, percent by mass, etc.). Molarity = moles of solute / liter of solution molality = moles of solute / kg of solvent ppm = mg solute / liter of solution ppb = microgram of solute / liter of solution %-by-mass = (grams of solute / grams of solution) x 100% To convert from %-by-mass to Molarity, assume 100g of solution,...
f) What is the concentration in %(m/v) of a solution prepared by dissolving 50.0 g of sucrose in 220 mL of ethanol. g) What is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and...
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