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eve in you!!!!:) Question 17 2.85 pts Find the concentration of Fel3, if 0.20 mol of...
Question 18 2.85 pts What is the concentration (M) of a NaCl solution prepared by dissolving...
Question 18 2.85 pts What is the concentration (M) of a NaCl solution prepared by dissolving 18.6 g of NaClin sufficient water to give 350 mL of solution? 0 27 18 o 0.36 0 0.91 • Previous Next M 30 F1 :: F2 80 f3
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State...
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State the precise amount of the 0.6 M NaOH used and the amount of diluent (H2O) added Question 2 20 pts Please prepare 500 mL of a 1/100 dilution of serum from a tube with a 1/10O dilution of serum. Please state the volume of the 1/10 dilution of serum used and the volume of diluents (H2O) used 20 pts...
Question 17 0.5 pts 0.25 mol of solid glucose (C6H120) is dissolved in 100. mL of...
Question 17 0.5 pts 0.25 mol of solid glucose (C6H120) is dissolved in 100. mL of water, what is the (w/w%)-(3 SF) Question 18 0.5 pts What is the w/w% if 293.7 g is dissolved in 1.00 L of water to give a density 1.18 g/mL D Question 19 0.5 pts What is the concentration in V/V% for 250 mL of solution contains 13.1 mL of acetone. (3 SF)
student question: 75 mL, of water and 0.10 moles of CO.(g) are added to a on vessel at 25 °C. A) What concentration of CO.(aq) do you expect to find at equilibrium? Henry's law constant-2 4x1...
student question: 75 mL, of water and 0.10 moles of CO.(g) are added to a on vessel at 25 °C. A) What concentration of CO.(aq) do you expect to find at equilibrium? Henry's law constant-2 4x102 mol/L atm (12 pts) I mal-o B) Modified student question: If all the dissolved Co.(aq) reacts fully with water, then what is the pH of the water after equilibrium is reached? H2CO3 Kal = 4.2x10", Ka2-4.8×10-11. (12 pts) C) If you add CaCl2 to...
Find the concentration (molarity) of an aqueous solution prepared by dissolving 10g of NaOH(s) in 100mL...
Find the concentration (molarity) of an aqueous solution prepared by dissolving 10g of NaOH(s) in 100mL of water. Find the concentration (molarity) of a NaOH solution that contains 5g of NaOH and 1000 mL of water. What is the new concentration when we add 1L more of water to the prepared solution in question (2).? If you have 10 ml of a 5M solution of NaOH, how many mol of NaOH you have? How many mol of Na+ you have?...
D Question 2 What is the final concentration it 225 ml of a 11 3 M...
D Question 2 What is the final concentration it 225 ml of a 11 3 M HCl solution is diluted with water to a volume of 562 ml? You must include the correct number of significant figures but do not include the units • Previous Quiz saved at 72 MacBook Pro ps lock control option command
help Question 2 2 pts The concentration of Cd2+ in a local water sample was determined...
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Question 2 2 pts The concentration of Cd2+ in a local water sample was determined with atomic absorption spectroscopy (AAS). 45.00 mL of the local water sample produce an AAS signal of 0.610. Then, 5.00 mL of the 0.00300-M Cd2 standard were added to another 45.00 mL of the local water sample, and this spiked sample gives an AAS signal of 1.130. What would be the concentration of Cd2+ in the local water sample? 0.00194M O 0.000315 M 0.000136...
Question 18 4 pts What element is reduced in the following reaction? Mg(s) + 2AgCl(aq) +...
Question 18 4 pts What element is reduced in the following reaction? Mg(s) + 2AgCl(aq) + MgCl2(aq) + 2Ag(s) This is not an oxidation-reduction reaction silver magnesium chlorine If you want to dilute 10.0 mL of a 3.00 M HNO3 solution to a concentration of 0.600 M. what should be the total volume of the diluted solution? 20.0 mL 120 ml 200 ml 60.0 ml 50.0 ml What volume of 0.20 M KOH is required to neutralize 0.25 L of...
help with all 6 questions please Question 24 1 pts An isotonic solution of NaCl is...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
D Question 9 2 pts You have 10-4 colonies/mL (concentration) of bacteria and you plate out...
D Question 9 2 pts You have 10-4 colonies/mL (concentration) of bacteria and you plate out 10 microliters. Your plate has a concentration of 10° colonies/mL. O True False 2 pts D Question 10
Question 18 2.85 pts What is the concentration (M) of a NaCl solution prepared by dissolving 18.6 g of NaClin sufficient water to give 350 mL of solution? 0 27 18 o 0.36 0 0.91 • Previous Next M 30 F1 :: F2 80 f3
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State the precise amount of the 0.6 M NaOH used and the amount of diluent (H2O) added Question 2 20 pts Please prepare 500 mL of a 1/100 dilution of serum from a tube with a 1/10O dilution of serum. Please state the volume of the 1/10 dilution of serum used and the volume of diluents (H2O) used 20 pts...
Question 17 0.5 pts 0.25 mol of solid glucose (C6H120) is dissolved in 100. mL of water, what is the (w/w%)-(3 SF) Question 18 0.5 pts What is the w/w% if 293.7 g is dissolved in 1.00 L of water to give a density 1.18 g/mL D Question 19 0.5 pts What is the concentration in V/V% for 250 mL of solution contains 13.1 mL of acetone. (3 SF)
student question: 75 mL, of water and 0.10 moles of CO.(g) are added to a on vessel at 25 °C. A) What concentration of CO.(aq) do you expect to find at equilibrium? Henry's law constant-2 4x102 mol/L atm (12 pts) I mal-o B) Modified student question: If all the dissolved Co.(aq) reacts fully with water, then what is the pH of the water after equilibrium is reached? H2CO3 Kal = 4.2x10", Ka2-4.8×10-11. (12 pts) C) If you add CaCl2 to...
D Question 2 What is the final concentration it 225 ml of a 11 3 M HCl solution is diluted with water to a volume of 562 ml? You must include the correct number of significant figures but do not include the units • Previous Quiz saved at 72 MacBook Pro ps lock control option command
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Question 2 2 pts The concentration of Cd2+ in a local water sample was determined with atomic absorption spectroscopy (AAS). 45.00 mL of the local water sample produce an AAS signal of 0.610. Then, 5.00 mL of the 0.00300-M Cd2 standard were added to another 45.00 mL of the local water sample, and this spiked sample gives an AAS signal of 1.130. What would be the concentration of Cd2+ in the local water sample? 0.00194M O 0.000315 M 0.000136...
Question 18 4 pts What element is reduced in the following reaction? Mg(s) + 2AgCl(aq) + MgCl2(aq) + 2Ag(s) This is not an oxidation-reduction reaction silver magnesium chlorine If you want to dilute 10.0 mL of a 3.00 M HNO3 solution to a concentration of 0.600 M. what should be the total volume of the diluted solution? 20.0 mL 120 ml 200 ml 60.0 ml 50.0 ml What volume of 0.20 M KOH is required to neutralize 0.25 L of...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
D Question 9 2 pts You have 10-4 colonies/mL (concentration) of bacteria and you plate out 10 microliters. Your plate has a concentration of 10° colonies/mL. O True False 2 pts D Question 10
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