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If a student mixes 20g of HBF6 in water to make a 350mL
solution, what is...
hat is the concentration of FcClb in a solution prepared by dise water to make 275...
hat is the concentration of FcClb in a solution prepared by dise water to make 275 mL of solution? a. 2.24 x 104 M b 0.224 M c. 4.46 M d. 4.46 ×103M 9. What is the oxidation number of the sulfur atom in SO,p-2 a. +2 c. +6 10. The titration of 25.0 mL of an unknown concentration H,SO, solution requires 83.6 ml. of 0.12 M LiOH solution. What is the concentration of the HaSO4 solution (in M)? a....
a student mixes sodium chloride and water until the solid and the aqueous solution are at...
a student mixes sodium chloride and water until the solid and the aqueous solution are at equilibrium. if more solid sodium chloride is added to this mixture, does the concentration of sodium chloride in the aqueous solution change? use Le Chatelier's Principle to explain.
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution...
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution will result in that solution conducting electricity, an electrolyte. Some solutions are strong electrolytes while others are weak electrolytes. 1. What do you think is giving rise to electrical conductivity? ions in a crystal 2. This is a diagram showing ions in a crystal. Draw a diagram showing the particles in 1) strong electrolyte, and 2) weak electrolyte. Pay attention to how the water...
9. A solution of ethyl alcohol (C2H5OH) in water has a concentration of 20.56% v/v. What...
9. A solution of ethyl alcohol (C2H5OH) in water has a concentration of 20.56% v/v. What volume of C2H5OH is present in 255 mL of solution? 10. What mass of KCl is present in 475 mL of a 1.09% m/v aqueous solution? 11. What is the molarity of 0.500 L of a potassium chromate solution containing 0.0650 mol of K2CrO4? 12. What is the molarity of 4.50 L of a solution containing 0.206 mol of urea [(NH2)2CO]?
also what is the delta H neutralization? A student mixes 35.2 mL of a 3.11 M...
also what is the delta H neutralization?
A student mixes 35.2 mL of a 3.11 M sodium hydroxide solution with 35.2 mL of 2.95 M hydrochloric acid. The temperature of the mixture rises 20.8°C. The density of the resulting solution is 1.00 and mL J has a specific heat capacity of 4.184 The heat capacity of the calorimeter is 3.86 g. °C Part 1: (a) Identify the limiting reagent for the reaction. HCI Part 2 out of 3 (b) Calculate...
To make a buffer, a student mixes H2CO3 with NaHCO3 to form a solution which is 0.012 M carbonic acid (H2CO3) and 0.012...
To make a buffer, a student mixes H2CO3 with NaHCO3 to form a solution which is 0.012 M carbonic acid (H2CO3) and 0.012 M (NaHCO3). The pH of the buffer solution is 6.37 The student adds 10.0 mL of 0.100 M NaOH to a fresh solution of his buffer. Calculate the pH after the addition of NaOH.
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to...
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to have made a buffer. Is this claim accurate? Yes- it is a mixture of acid and conjugate base after all Yes- any acid with a conjugate can make a buffer Oo oo C No-the conjugate base is so weak it does not reach equilibrium with water Need more information Question 6 1 pts Which combination of acid and base would create a buffer? Assume...
STUDENT INFO Name: Date: Course/Section: Results EXPERIMENT3 Electrolytes and conductivity Results Units Conduct...
STUDENT INFO Name: Date: Course/Section: Results EXPERIMENT3 Electrolytes and conductivity Results Units Conductivity Concentration (M) Solution 0.O43 Distilled water L02 7 C Tap water CaH,OH 5219 НC 19.13 Cm OSOM НС 35.90 0.020M 0,02- На 0.0SS GloM HNO KOH Glor KCI MS 2002 0.loM KNO 5.952 O.10M Ca(NOsl NHS em 1335 HОН0, UT Units Conductivity Mixture Concentration (MX OIOM 21.69 нс HC-KNO OLon KNO 0,10M Hо-но .907 6.01 HC H,0z NH 0.108M NH Questions EXPERIMENT 3 Electrolytes and conductivity 1....
Chapter7 20. Explain how to physically make the following solutions. In other words, write instructions for someone to...
Chapter7 20. Explain how to physically make the following solutions. In other words, write instructions for someone to prepare each of the following solutions. Show your calculations in determining amounts needed. Be sure to stay aware of what is possible to physically measure and what is not. 1 kg of a 12%(w/w) solution of NaCl in water a. 500 mL of a 16%(v/v) solution of propanol in water b. 350 mL of a 25%(w/v) solution of glucose in water c....
A student prepared a stock solution by dissolving 5.00 g of KOH in enough water to make 150. mL...
A student prepared a stock solution by dissolving 5.00 g of KOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted itwith enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution?A) 0.137 MB) 7.30 MC)5.61 MD) 0.178 M
hat is the concentration of FcClb in a solution prepared by dise water to make 275 mL of solution? a. 2.24 x 104 M b 0.224 M c. 4.46 M d. 4.46 ×103M 9. What is the oxidation number of the sulfur atom in SO,p-2 a. +2 c. +6 10. The titration of 25.0 mL of an unknown concentration H,SO, solution requires 83.6 ml. of 0.12 M LiOH solution. What is the concentration of the HaSO4 solution (in M)? a....
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution will result in that solution conducting electricity, an electrolyte. Some solutions are strong electrolytes while others are weak electrolytes. 1. What do you think is giving rise to electrical conductivity? ions in a crystal 2. This is a diagram showing ions in a crystal. Draw a diagram showing the particles in 1) strong electrolyte, and 2) weak electrolyte. Pay attention to how the water...
also what is the delta H neutralization?
A student mixes 35.2 mL of a 3.11 M sodium hydroxide solution with 35.2 mL of 2.95 M hydrochloric acid. The temperature of the mixture rises 20.8°C. The density of the resulting solution is 1.00 and mL J has a specific heat capacity of 4.184 The heat capacity of the calorimeter is 3.86 g. °C Part 1: (a) Identify the limiting reagent for the reaction. HCI Part 2 out of 3 (b) Calculate...
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to have made a buffer. Is this claim accurate? Yes- it is a mixture of acid and conjugate base after all Yes- any acid with a conjugate can make a buffer Oo oo C No-the conjugate base is so weak it does not reach equilibrium with water Need more information Question 6 1 pts Which combination of acid and base would create a buffer? Assume...
STUDENT INFO Name: Date: Course/Section: Results EXPERIMENT3 Electrolytes and conductivity Results Units Conductivity Concentration (M) Solution 0.O43 Distilled water L02 7 C Tap water CaH,OH 5219 НC 19.13 Cm OSOM НС 35.90 0.020M 0,02- На 0.0SS GloM HNO KOH Glor KCI MS 2002 0.loM KNO 5.952 O.10M Ca(NOsl NHS em 1335 HОН0, UT Units Conductivity Mixture Concentration (MX OIOM 21.69 нс HC-KNO OLon KNO 0,10M Hо-но .907 6.01 HC H,0z NH 0.108M NH Questions EXPERIMENT 3 Electrolytes and conductivity 1....
Chapter7 20. Explain how to physically make the following solutions. In other words, write instructions for someone to prepare each of the following solutions. Show your calculations in determining amounts needed. Be sure to stay aware of what is possible to physically measure and what is not. 1 kg of a 12%(w/w) solution of NaCl in water a. 500 mL of a 16%(v/v) solution of propanol in water b. 350 mL of a 25%(w/v) solution of glucose in water c....
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