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If 145 mL of 1.00 M KOH is diluted to...
This is a multipart homework question for chemistry. Choose the correct numerical value for the molarity...
This is a multipart homework question for
chemistry.
Choose the correct numerical value for the molarity from the response list for a solution using 70.0 mL of 0.20 M solution that has been concentrated to 35.0 mL. 0.40 M O 0.25 M O 0.10 M O 0.12 M If 145 mL of 1.00 M KOH is diluted to 1.15 L, the resulting solution contains 0.145 moles of KOH O 3.34 moles of KOH O 0.19 moles of KOH O 2.30...
What volume, in milliliters, of 4.0 M NaOH is needed to prepare 80.0 mL of 0.20...
What volume, in milliliters, of 4.0 M NaOH is needed to prepare 80.0 mL of 0.20 M NaOH by dilution? 4.0 mL 2.6 x 104 mL 3.9 x 103 mL 5.4 mL Question 10 2 pts Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true false status of the statements using the choices. (1) A saturated solution always contains excess undissolved solute. (2) In aqueous solution, Ba²+ ion combines with CO32-...
need help on these two questions How many valence electrons are used in drawing the Lewis...
need help on these two questions
How many valence electrons are used in drawing the Lewis Structure of the HSO3-ion? O 26 O 21 O 24 22 O 23 Question 5 What volume, in milliliters, of 4.0 M NaOH is needed to prepare 145 mL of 0.45 M NaOH? O 16 mL 1.3x 10mL 0.061 mL O 1.2x 10-2 mL
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml...
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml solution b. 8.28 g Ca(C,H,O,), in 414 ml solution c. 31,1 g Al,(80.), in 766 ml solution d. 59.8 g CaCl, in 100 ml solution e. 313.5 g LICIO, in 250 ml solution | 849 Calculate the moles of solute needed to prepare each of the following: 2. LOL of a 3.0 M NaCl solution b. 0.40 L of a 1.0 M KBr solution...
16.7 grams of NH, in 1.50 liters of solution? (molar mass of 16. What is the...
16.7 grams of NH, in 1.50 liters of solution? (molar mass of 16. What is the molarity of tin taining NH, = 17.03 g/mole) a. 0.0654 M b .0.654 M c . 1.53 M d. 11.1 M 17. What volume, in milliliters, of 4.0 M NaOH is needed to prepare 145 mL of 0.15 NaOH is needed to prepare 145 mL of 0.15 M NaOH by dilution? a. 3.9 x 10 mLb. 5.4 mL c. 2.6 x 10 mL d....
ASAP please Consider the titration of 50.0 mL of 0.200 M hypochlorous acid HCIO (Ka =...
ASAP please
Consider the titration of 50.0 mL of 0.200 M hypochlorous acid HCIO (Ka = 3.5 x 10-8) with 0.250 M NaOH. 5- How many milliliters of NaOH are required to reach the equivalence point? a) b) Calculate the pH before titration c) Calculate the pH after adding 40.0 mL. of NaOH d) Calculate the pOH after adding 20.0 ml, of NaOH
need help with these asap Question 10 Choose the correct numerical value for the molarity from...
need help with these asap
Question 10 Choose the correct numerical value for the molarity from the response list for a solution using 50.0 mL of 0.40 M solution diluted to a final volume of 0.400 L. 0.050 M 8.0 M 3.20 M O 0.10 M 2 pts Question 11 A 0.300 M solution of LiOH that contains 0.600 mole of solute would have a volume, in milliliters, of 1.67 x 10 ml 30.0 mL 6,00 x 10-ml. 2.00 x...
1) 20. mL sample of 0.20 M HOCl is added to 25.0mL of 0.20M KOH. What...
1) 20. mL sample of 0.20 M HOCl is added to 25.0mL of 0.20M KOH. What is the pH of the solution? -8 HOCl (Ka = 3.5 x 10 ) 2) The ideal pH for the pool is 7.4. What is the ratio of (OCl- ) to (HOCl) needed to maintain the swimming pool at a pH of 7.4? 3) What would be the new pH if you added 0.3 moles of NaOH to 1.0L of the pool water at...
all please. its okah if its just the answers ozmol 53. A 100.0 mL sample of 0.20 M HF is titrated with 0.10 M KOH. D...
all please. its okah if its just the answers
ozmol 53. A 100.0 mL sample of 0.20 M HF is titrated with 0.10 M KOH. Determine the pH of the solution after the addition of 400.0 mL of KOH. The Ka of HF is 3.5 x 10-4. a.)12.30 b. 12.60 с. 12.78 d. 13.85 HI & KOH + H₂O .04 54. Which response has both answers correct? Will a precipitate form when 250 mL of 0.33 M Na CO. are...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
This is a multipart homework question for
chemistry.
Choose the correct numerical value for the molarity from the response list for a solution using 70.0 mL of 0.20 M solution that has been concentrated to 35.0 mL. 0.40 M O 0.25 M O 0.10 M O 0.12 M If 145 mL of 1.00 M KOH is diluted to 1.15 L, the resulting solution contains 0.145 moles of KOH O 3.34 moles of KOH O 0.19 moles of KOH O 2.30...
What volume, in milliliters, of 4.0 M NaOH is needed to prepare 80.0 mL of 0.20 M NaOH by dilution? 4.0 mL 2.6 x 104 mL 3.9 x 103 mL 5.4 mL Question 10 2 pts Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true false status of the statements using the choices. (1) A saturated solution always contains excess undissolved solute. (2) In aqueous solution, Ba²+ ion combines with CO32-...
need help on these two questions
How many valence electrons are used in drawing the Lewis Structure of the HSO3-ion? O 26 O 21 O 24 22 O 23 Question 5 What volume, in milliliters, of 4.0 M NaOH is needed to prepare 145 mL of 0.45 M NaOH? O 16 mL 1.3x 10mL 0.061 mL O 1.2x 10-2 mL
1. Calculate the molarity of the following solutions: a. 318 g Mg Br, in 859 ml solution b. 8.28 g Ca(C,H,O,), in 414 ml solution c. 31,1 g Al,(80.), in 766 ml solution d. 59.8 g CaCl, in 100 ml solution e. 313.5 g LICIO, in 250 ml solution | 849 Calculate the moles of solute needed to prepare each of the following: 2. LOL of a 3.0 M NaCl solution b. 0.40 L of a 1.0 M KBr solution...
16.7 grams of NH, in 1.50 liters of solution? (molar mass of 16. What is the molarity of tin taining NH, = 17.03 g/mole) a. 0.0654 M b .0.654 M c . 1.53 M d. 11.1 M 17. What volume, in milliliters, of 4.0 M NaOH is needed to prepare 145 mL of 0.15 NaOH is needed to prepare 145 mL of 0.15 M NaOH by dilution? a. 3.9 x 10 mLb. 5.4 mL c. 2.6 x 10 mL d....
ASAP please
Consider the titration of 50.0 mL of 0.200 M hypochlorous acid HCIO (Ka = 3.5 x 10-8) with 0.250 M NaOH. 5- How many milliliters of NaOH are required to reach the equivalence point? a) b) Calculate the pH before titration c) Calculate the pH after adding 40.0 mL. of NaOH d) Calculate the pOH after adding 20.0 ml, of NaOH
need help with these asap
Question 10 Choose the correct numerical value for the molarity from the response list for a solution using 50.0 mL of 0.40 M solution diluted to a final volume of 0.400 L. 0.050 M 8.0 M 3.20 M O 0.10 M 2 pts Question 11 A 0.300 M solution of LiOH that contains 0.600 mole of solute would have a volume, in milliliters, of 1.67 x 10 ml 30.0 mL 6,00 x 10-ml. 2.00 x...
all please. its okah if its just the answers
ozmol 53. A 100.0 mL sample of 0.20 M HF is titrated with 0.10 M KOH. Determine the pH of the solution after the addition of 400.0 mL of KOH. The Ka of HF is 3.5 x 10-4. a.)12.30 b. 12.60 с. 12.78 d. 13.85 HI & KOH + H₂O .04 54. Which response has both answers correct? Will a precipitate form when 250 mL of 0.33 M Na CO. are...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
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