Dilution: Find the concentration of [OH-] if 20.1 mL of 0.403 M NaOH stock solution is...
Dilution: Find the concentration of [OH-] if 20.1 mL of 0.403 M NaOH stock solution is added to 46.1 mL of CV solution. (Assume the volumes are additive.) I got 0.0060876133 or at 4 decimal places 0.00601 and its saying its wrong.
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Dilution: Find the concentration of [OH-] if 20.1 mL of 0.403 M
NaOH stock solution is...
20. If 10 mL of 0.05 M NaOH is added to a 20 mL solution of...
20. If 10 mL of 0.05 M NaOH is added to a 20 mL solution of 0.1 M NaNO2 and 0.1 M HNO2, what will be the pH of the resultant solution? Assume that volumes are additive. Ka for HNO2 = 7.1x10-4. 21. At 25°C, 50.0 mL of 0.50 M NaOH(aq) is added to a 250 mL aqueous solution containing 0.30 M NH3 and 0.36 M NH4Cl. What is the pH of the solution after the addition of the base?...
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...
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What...
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What mass of Fe(OH)3 (in grams) will precipitate from this reaction mixture? Mass = g One of the reactants (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reactant remaining in solution after Fe(OH)3 has been precipitated? Assume the volumes are additive. Concentration = M
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What...
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What mass of Fe(OH)3 (in grams) will precipitate from this reaction mixture? Mass = g One of the reactants (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reactant remaining in solution after Fe(OH)3 has been precipitated? Assume the volumes are additive. Concentration = M
a) 2.00 (IV) It is desired to prepare 0.250 L of a 0.100 M solution of...
a) 2.00 (IV) It is desired to prepare 0.250 L of a 0.100 M solution of NaCl from a 1.00 M stock solution. How many mL of the stock solution must be taken for the dilution? (V) What volume of a 0.500 M HCl solution is needed to neutralize 10.0 mL of a 0.300 M NaOH solution. (VI) What volume of 0.416 M Mg(NO3)2 should be added to 255 mL of 0.102 M KNO, to produce a solution with a...
Part A Find (OH] for a 0.036 M solution of NaOH. Express the concentration to two...
Part A Find (OH] for a 0.036 M solution of NaOH. Express the concentration to two significant figures and include the appropriate ur C: Å * O O ? [OH-] = Value Units Submit Request Answer Part B. Find the pH of a 0.036 M NaOH solution. Express your answer to two decimal places. pH = 12.56 Submit Previous Answers Correct
Indicate the concentration of each ion present in the solution formed by mixing the following. A....
Indicate the concentration of each ion present in the solution formed by mixing the following. A. 42.0 mL of 0.140 M NaOH and 37.6 mL of 0.400 M NaOH. Assume that the volumes are additive. B. 44.0 mL of 0.100 M Na2SO4 and 25.0 mL of 0.200 M KCl. Assume that the volumes are additive. C. 3.30 g KCl in 75.0 mL of 0.280 M CaCl2 solution. Assume that the volumes are additive.
Indicate the concentration of each ion present in the solution formed by mixing the following. A....
Indicate the concentration of each ion present in the solution formed by mixing the following. A. 42.0 mL of 0.150 M NaOH and 37.6 mL of 0.410 M NaOH. Assume that the volumes are additive. B. 44.0 mL of 0.140 M Na2SO4 and 25.0 mL of 0.160 M KCl. Assume that the volumes are additive. C. 3.20 g KCl in 75.0 mL of 0.220 M CaCl2 solution. Assume that the volumes are additive.
A 20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution....
A 20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. Part A 16.0 mL Express your answer using two decimal places. ΤΕΙ ΑΣφ BY pH = Submit Request Answer Part B 19.8 ml Express your answer using two decimal places. VO AEC pH- Submit Previous Answers Request Answer Problem 17.43 A 20.0 mL sample of 0.200 M HBr solution...
Calculate the new molarity if the following dilution is made. Assume the volumes are additive. a...
Calculate the new molarity if the following dilution is made. Assume the volumes are additive. a 56.0 mL of water is added to 25.2 mL of 0.174 M NaCl solution. Molarity = b 143 mL of water is added to 48.2 mL of 0.581 M NaOH solution. Molarity = M C 557 mL of water is added to 160. mL of 4.84 M KOH solution. Molarity = d 181 mL of water is added to 68.1 mL of 1.27 M...
20. If 10 mL of 0.05 M NaOH is added to a 20 mL solution of 0.1 M NaNO2 and 0.1 M HNO2, what will be the pH of the resultant solution? Assume that volumes are additive. Ka for HNO2 = 7.1x10-4. 21. At 25°C, 50.0 mL of 0.50 M NaOH(aq) is added to a 250 mL aqueous solution containing 0.30 M NH3 and 0.36 M NH4Cl. What is the pH of the solution after the addition of the base?...
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...
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What mass of Fe(OH)3 (in grams) will precipitate from this reaction mixture? Mass = g One of the reactants (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reactant remaining in solution after Fe(OH)3 has been precipitated? Assume the volumes are additive. Concentration = M
You mix 23.0 mL of 0.225 M FeCl3 with 44.5 mL of 0.461 M NaOH. What mass of Fe(OH)3 (in grams) will precipitate from this reaction mixture? Mass = g One of the reactants (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reactant remaining in solution after Fe(OH)3 has been precipitated? Assume the volumes are additive. Concentration = M
a) 2.00 (IV) It is desired to prepare 0.250 L of a 0.100 M solution of NaCl from a 1.00 M stock solution. How many mL of the stock solution must be taken for the dilution? (V) What volume of a 0.500 M HCl solution is needed to neutralize 10.0 mL of a 0.300 M NaOH solution. (VI) What volume of 0.416 M Mg(NO3)2 should be added to 255 mL of 0.102 M KNO, to produce a solution with a...
Part A Find (OH] for a 0.036 M solution of NaOH. Express the concentration to two significant figures and include the appropriate ur C: Å * O O ? [OH-] = Value Units Submit Request Answer Part B. Find the pH of a 0.036 M NaOH solution. Express your answer to two decimal places. pH = 12.56 Submit Previous Answers Correct
A 20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. Part A 16.0 mL Express your answer using two decimal places. ΤΕΙ ΑΣφ BY pH = Submit Request Answer Part B 19.8 ml Express your answer using two decimal places. VO AEC pH- Submit Previous Answers Request Answer Problem 17.43 A 20.0 mL sample of 0.200 M HBr solution...
Calculate the new molarity if the following dilution is made. Assume the volumes are additive. a 56.0 mL of water is added to 25.2 mL of 0.174 M NaCl solution. Molarity = b 143 mL of water is added to 48.2 mL of 0.581 M NaOH solution. Molarity = M C 557 mL of water is added to 160. mL of 4.84 M KOH solution. Molarity = d 181 mL of water is added to 68.1 mL of 1.27 M...
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