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a)t.. (b) 4.48. (d) 13.89. (f) 5.32. -0.42 -19. Calculate the p-functions for each ion in...
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,...
Stuck on how to calculate PPM. Can someone please explain this to me! Determine the concentrations...
Stuck on how to calculate PPM. Can someone
please explain this to me!
Determine the concentrations of K2SO4, K+, and SO42- in a solution prepared by dissolving 2.36 x 10-4 g K2SO4 in 1.50 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of SO42-. Ignore any reactions with water. [K, SO4) = 9.03 x10-7 M [K+] = 1.806 x10-6 M [K+]...
1. Aniline is a weak organic base with the formula C6H5NH2. The anilinium ion has the...
1. Aniline is a weak organic base with the formula C6H5NH2. The anilinium ion has the formula C6H5NH3+ and its Ka = 2.3 x 10¯5. a) write the chemical reaction showing the hydrolysis of anilinium ion. b) calculate the pH of a 0.0400 M solution of anilinium ion. 2.The Ksp of Sn3(BO3)4 is 6.128 x 10¯12. Determine the molar solubility. 3. The Ksp for CuCrO4 is 3.6 x 10-6. What is the molarity of a saturated solution of CuCrO4? 4....
4) An aqueous solution 95.0% (w/w) H2SO4 has a density of 1.83 g/mL. Calculate the molarity...
4) An aqueous solution 95.0% (w/w) H2SO4 has a density of 1.83 g/mL. Calculate the molarity of this solution. 5) An enzyme with a molecular weight of 35,460 Daltons is commercially available as a 0.15g/100mL aqueous solution with a purity of 85%. Calculate the molarity of enzyme in this commercially available aqueous solution. 6) A solution of a protein with a molecular weight of 25,100 Daltons has a concentration of 1.85 x 10^-7 M. a) Convert this concentration to mM....
I need help with 5 & 7 please (a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085...
I need help with 5 & 7 please
(a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085 (c) 39.4% (f) 5.38% *13-3 Calculate the percent transmittance of solutions having half the abse solutions in Problem 13-1. f the absorbance of the cent transmittance of *13-4 Calculate the absorbance of solutions having twice the percent transmiti those in Problem 13-2. *13-5 A solution containing 6.23 ppm KMnO, had a transmittance of 0.195 in a 10 cell at 520 nm. Calculate the molar...
HELP PLEASE 5 – Calculate the concentrations of H+, HCO3- and CO32- in a 0.025 M...
HELP PLEASE 5 – Calculate the concentrations of H+, HCO3- and CO32- in a 0.025 M H2CO3 solution. 6 – Classify the following as a Lewis acid, Lewis base, both or neither:CO2, H2O, I-, SO2, NH3, OH-, H+, BCl37 – 7-Calculate the pH of a solution that is 0.20 M NH3 and 0.30 M NH4Cl.8 – 8-The pH of blood plasma is 7.40. Assuming the principal buffer system is HCO3-/H2CO3, calculate the ratio [HCO3-]/[H2CO3] . 9 – A 0.2688 g...
parts a - d. please help!! 3) Antifreeze poisoning can be confirmed by the presence of...
parts a - d. please help!!
3) Antifreeze poisoning can be confirmed by the presence of calcium oxalate crystals (Figure 3, CaC2O4) in the urine in humans as well as in pets. (10 points) a) Give the balanced chemical equation for the dissolution of calcium oxalate, is what happens when CaC2O4(s) dissolves in water? C2022-is the formula for the oxalate ion (2 points) Figure 3: Calcium oxalate, 128.1 g/mol b) If the Kop of Cacz0, is 4.0 x 10", what...
i need help with number 8 and 9 please! 297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10...
i need help with number 8 and 9 please!
297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10 mL 271 381 f. Total [H [KHned g. Saturation temperature (C) h. Saturation temperature (K) 516 332.7S 0428 j. Why did the temperature have to be increased to dissolve the KHT when the KCI was added? B. K, by titration. 10.1:C 1. Temperature...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the concentration of Mg2+ is 1.21 x 10–3 molar. The equilibrium is represented by the equation above. (a) Write the expression for the solubility-product constant, Ksp, and calculate its value at 18 0C. (b) Calculate the equilibrium concentration of Mg2+ in 1.000 liter of saturated MgF2 solution at 18 0C to which 0.100 mole of solid KF has been added. The KF dissolves completely. Assume...
What is the pH n aqueous solution with a hydroxide ion concentration of 1.60 x 10-4...
What is the pH n aqueous solution with a hydroxide ion concentration of 1.60 x 10-4 M? O 14.2 03.80 O 10.2 0 -0.204 Consider the reaction. HF(aq) + KOH(aq) — KF(aq) + H20(1) What is the net ionic equation for the chemical reaction? HF(aq) + K+ (aq) + OH(aq) — K+(aq) + F-(aq) + H+(1) + OH-(1 HF(aq) + K+ (aq) —> K+ (aq) + H2O(l) HF(aq) + K+(aq) + OH- (aq) — K+(aq) +F-(aq) + H2O(1) HF(aq) +...
Stuck on how to calculate PPM. Can someone
please explain this to me!
Determine the concentrations of K2SO4, K+, and SO42- in a solution prepared by dissolving 2.36 x 10-4 g K2SO4 in 1.50 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of SO42-. Ignore any reactions with water. [K, SO4) = 9.03 x10-7 M [K+] = 1.806 x10-6 M [K+]...
I need help with 5 & 7 please
(a) 15.8% (d) 23.8% (b) 0.492 (e) 0.085 (c) 39.4% (f) 5.38% *13-3 Calculate the percent transmittance of solutions having half the abse solutions in Problem 13-1. f the absorbance of the cent transmittance of *13-4 Calculate the absorbance of solutions having twice the percent transmiti those in Problem 13-2. *13-5 A solution containing 6.23 ppm KMnO, had a transmittance of 0.195 in a 10 cell at 520 nm. Calculate the molar...
parts a - d. please help!!
3) Antifreeze poisoning can be confirmed by the presence of calcium oxalate crystals (Figure 3, CaC2O4) in the urine in humans as well as in pets. (10 points) a) Give the balanced chemical equation for the dissolution of calcium oxalate, is what happens when CaC2O4(s) dissolves in water? C2022-is the formula for the oxalate ion (2 points) Figure 3: Calcium oxalate, 128.1 g/mol b) If the Kop of Cacz0, is 4.0 x 10", what...
i need help with number 8 and 9 please!
297 Experiment 24 10. Common ion effect a. Concentration of KHT final solution (50 mL) b. Volume of solution c. Mass of KCI d. Concentration of KCI 5.0x10 mL 271 381 f. Total [H [KHned g. Saturation temperature (C) h. Saturation temperature (K) 516 332.7S 0428 j. Why did the temperature have to be increased to dissolve the KHT when the KCI was added? B. K, by titration. 10.1:C 1. Temperature...
What is the pH n aqueous solution with a hydroxide ion concentration of 1.60 x 10-4 M? O 14.2 03.80 O 10.2 0 -0.204 Consider the reaction. HF(aq) + KOH(aq) — KF(aq) + H20(1) What is the net ionic equation for the chemical reaction? HF(aq) + K+ (aq) + OH(aq) — K+(aq) + F-(aq) + H+(1) + OH-(1 HF(aq) + K+ (aq) —> K+ (aq) + H2O(l) HF(aq) + K+(aq) + OH- (aq) — K+(aq) +F-(aq) + H2O(1) HF(aq) +...
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