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A 200.mL sample of water is used to complete an electric circuit as shown in the...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water,...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water, what is the concentration of Mg2+(ag) and Cl-(aq) in the resulting solution? (Assume volumes are additive.) 15 20 2H [C (mol/L) [Mg] (mol/L) (A (A) 0.20 0.20 0.40 0.20 (C) 0.40 0.40 (D) 2.0 2.5 8 3@00 8. A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated wit 0.150 M HCl(aq). What volume of HCl(aq) is needed to com pletely neutralize the...
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml...
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
Not a real experiment, just a homework question In order to test the concentration of chlorine ions, Cl - (aq) in a water reservoir, a sample of 300 ml was taken from a water reservoir to the laborato...
Not a real experiment, just a homework question In order to test the concentration of chlorine ions, Cl - (aq) in a water reservoir, a sample of 300 ml was taken from a water reservoir to the laboratory and a number of experiments were performed. In the first stage, the sample was divided into two cups. A 100 mL solution was prepared in the first glass, and in the second glass 200 ml Several experiments were performed. First cup -...
number 3, a-e Complete the calculations below for titration of a saturated solution of aluminum hydroxide...
number 3, a-e
Complete the calculations below for titration of a saturated solution of aluminum hydroxide in water with HCl based on the following data. 3. Al(OH)3(aq) + 3HCI(aq-AICI3(aq) + 3H20(1) Volume of Al(OH)3 solution used: Concentration of diluted HCl solution: Initial Volume of HCl in buret: Final Volume of HCl in buret: 5.00 mL 0.0500 M 2.35 mL 32.86 mL a) Total amount (mol) of HCI added to the saturated Al(OH), solution b) Amount (mol) of Al(OH)3 that reacted...
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL...
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL of a solution at 25°C. The osmotic pressure of this solution was measured and found to be 3.67 atm. What is the molar mass of this compound? O 183 g/mol 18.3 g/mol 101 g/mol 1560 g/mol 1830 g/mol Question 25 (1 point) Which statement below is true? O Nonpolar molecules can dissolve in polar solvents. Gases are soluble only in nonpolar solvents. lonic compounds...
1. A sample of hydrochloric acid (HCI), which is an acid, with a mass of 0.7302 g is dissolved in water and used to sta...
1. A sample of hydrochloric acid (HCI), which is an acid, with a mass of 0.7302 g is dissolved in water and used to standardize a solution of barium hydroxide. An endpoint is reached when 47.81 mL of barium hydroxide has been added. Determine the molarity (in mol/L) of the barium hydroxide solution. Report your answer to four significant figures. Submit Answer Tries 0/13 2. The standardized barium hydroxide solution is then used to titrate 13.86 mL of a solution...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
2. Answer following question related to the circuit shown below. The light bulbs used in this...
2. Answer following question related to the circuit shown below. The light bulbs used in this circuits (a,b,c) have the same rating: 2.51 -0.74W. 2.8V O (1) Estimate the resistance of the light bulb using the rating information. (2) Estimate the total resistance of the circuit. (You can solve this by estimating the overall resistance of light bulb (b) & (c) first, and then add the resistance of light bulb (a).) (3) Estimate the net current of the circuit. (Use...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp =...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp = 5.2 x 10-12) ОА. OB. Ca(OH)2 (Ksp = 2,5 x 10-14) OCAgI (Ksp = 8.3 x 10-17 OD.CaF2 (Ksp = 3.9 x 10-11) OE ZnCO3 (Ksp = 1.4 x 10-11) QUESTION 20 Click Save and Submit to save and submit Chek Saue Al Anser to save alters ve here to search Remaining Time: 1 hour, 05 minutes, 02 seconds. * Question Completion Status: QUESTION...
15. A 66 mL sample of a solution of sulfuric acid, H,SO, is neutralized by 34...
15. A 66 mL sample of a solution of sulfuric acid, H,SO, is neutralized by 34 mL of a 0.13 M sodium hydroxide solution. Calculate the molarity of the sulfuric acid solution 16. If 300 mL of 3.9 M HCl is added to 400 mL of 2.9 M NaOH, what is the pH? 17. If 287 mL of 4.7 M HCl solution is added to 284 mL of 3.2 M Ba(OH), solution, what will the pH be? 18. What is...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water, what is the concentration of Mg2+(ag) and Cl-(aq) in the resulting solution? (Assume volumes are additive.) 15 20 2H [C (mol/L) [Mg] (mol/L) (A (A) 0.20 0.20 0.40 0.20 (C) 0.40 0.40 (D) 2.0 2.5 8 3@00 8. A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated wit 0.150 M HCl(aq). What volume of HCl(aq) is needed to com pletely neutralize the...
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
number 3, a-e
Complete the calculations below for titration of a saturated solution of aluminum hydroxide in water with HCl based on the following data. 3. Al(OH)3(aq) + 3HCI(aq-AICI3(aq) + 3H20(1) Volume of Al(OH)3 solution used: Concentration of diluted HCl solution: Initial Volume of HCl in buret: Final Volume of HCl in buret: 5.00 mL 0.0500 M 2.35 mL 32.86 mL a) Total amount (mol) of HCI added to the saturated Al(OH), solution b) Amount (mol) of Al(OH)3 that reacted...
A 275 mg sample of a nonelectrolyte compound was dissolved in water to produce 10.0 mL of a solution at 25°C. The osmotic pressure of this solution was measured and found to be 3.67 atm. What is the molar mass of this compound? O 183 g/mol 18.3 g/mol 101 g/mol 1560 g/mol 1830 g/mol Question 25 (1 point) Which statement below is true? O Nonpolar molecules can dissolve in polar solvents. Gases are soluble only in nonpolar solvents. lonic compounds...
1. A sample of hydrochloric acid (HCI), which is an acid, with a mass of 0.7302 g is dissolved in water and used to standardize a solution of barium hydroxide. An endpoint is reached when 47.81 mL of barium hydroxide has been added. Determine the molarity (in mol/L) of the barium hydroxide solution. Report your answer to four significant figures. Submit Answer Tries 0/13 2. The standardized barium hydroxide solution is then used to titrate 13.86 mL of a solution...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
2. Answer following question related to the circuit shown below. The light bulbs used in this circuits (a,b,c) have the same rating: 2.51 -0.74W. 2.8V O (1) Estimate the resistance of the light bulb using the rating information. (2) Estimate the total resistance of the circuit. (You can solve this by estimating the overall resistance of light bulb (b) & (c) first, and then add the resistance of light bulb (a).) (3) Estimate the net current of the circuit. (Use...
QUESTION 19 Which compound listed below has the smallest molar solubility in water? CdCO3 (Ksp = 5.2 x 10-12) ОА. OB. Ca(OH)2 (Ksp = 2,5 x 10-14) OCAgI (Ksp = 8.3 x 10-17 OD.CaF2 (Ksp = 3.9 x 10-11) OE ZnCO3 (Ksp = 1.4 x 10-11) QUESTION 20 Click Save and Submit to save and submit Chek Saue Al Anser to save alters ve here to search Remaining Time: 1 hour, 05 minutes, 02 seconds. * Question Completion Status: QUESTION...
15. A 66 mL sample of a solution of sulfuric acid, H,SO, is neutralized by 34 mL of a 0.13 M sodium hydroxide solution. Calculate the molarity of the sulfuric acid solution 16. If 300 mL of 3.9 M HCl is added to 400 mL of 2.9 M NaOH, what is the pH? 17. If 287 mL of 4.7 M HCl solution is added to 284 mL of 3.2 M Ba(OH), solution, what will the pH be? 18. What is...
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