Ksp_Mastery_Assignment_KEY

I gave the wrong molarity when I submitted this last. I used 25 ml of HCl. The molarity of NaOH is 0.1065 instead of what I have in the image. Sorry again,but thank you!

Questions 4-7 ?

Answer letter b. Letter A is just a guide question ( no answer needed basically)

When 0.064L of a solution containing 1.46M BaF2 is diluted to 0.7L, what is the concentration of BaF2 in the new solution?   Answer to 2 decimal places Read about significant figures and rounding in the Helpful Resources page! Do not include units when reporting your answer Use standard notation or scientific notation as accepted by blackboard e.g. 0.001 or 1E-3, not 1 x 10^-3

What volume of water must be added to concentrated HCl solution to prepare 100 mL 0.955 M HCl solution?        Please type answer note write by hend.

Chem. Act. 1.1)  A volume of 33.0ml of 1.0 M Hydrochloric acid (HCl) neutralizes a 28.0ml sample of KOH solution . What is the concentration of Potasium hydroxide (KOH)? HCl + KOH → KCl + H2O

Please help me answer this

For the questions of Exp. 13, Calculate the Molarity (M) of 30.87 mL NaOH solution when it is titrated with 0.332 g of sulfamic acid (Mw = 97.10 g/mol). Type your answer...

[Review Topics] (References) Use the References to access important values if needed for this question. What volume of a 0.101 M HCl solution is required to neutralize 28.5 mL of a 0.150 M KOH solution? HCI+ KOH →KCI + H2O mL HCI Submit Answer Retry Entire Group 9 more group attempts remaining req req Cengage Learning | Cengage Technical Support 98°F Rain coming PrtScn Home F9 PyDn F4 F5 End PyUp F8

Diagrams of solution conductivity versus the total volume of three solutions are shown (VINITIAL = 1.0 L before additions).   Which diagram best represents the solution conductivity when 1.0 M NH3 is added to 1.0 L of 1.0 M HF?   Question 11 options:   2   1   3

0.600 mole of Ca(NO3) in 700.0 mL of solution MCa2+ =  ____M MNO3- =  ____M

DC AaBbC T No Spac... Heading 1 Heading 2 1 Normal Paragraph Styles 6. According to label on a bottle of concentrated hydrochloric acid, the contents are 37% of HCI by mass has a density of 1.18g/ml. Calculate the molarity of acid.

4. A mixture of liquid methanol and liquid ethanol can be separated by ________, and the physical characteristic of these compounds that allows separation is ________.   Question 4 options:   fractional distillation; solubility   fractional distillation; boiling point   precipitation; solubility   precipitation; boiling point

***Please answer both parts of question. Don't answer just one.

2. In Part A of this experiment you will prepare 0.1 M solutions of sodium carbonate (NazCO3), sodium bicarbonate (NaHCO3), sodium chloride (NaCl), and ammonium chloride (NH.CI). You will need 100 mL of each solution. Calculate the mass of each solute that you will need for each solution. Mass of NazCO; needed to make the NazCO; solution: Mass of NaHCO3 needed to make the NaHCO3 solution: Mass of Nacl needed to make the Nacl solution: Mass of NH.Cl needed to make the NH,CI solution:

2

can you generate the unknown concentration using this information?

Acid Data table Initial volume of Vinegar Percent acetic acid in vinegar sample HG mc Base Data table mol base = mol acid I mol acid Imol base Concentration of NaOH solution 0125 M Initial volume of NaOH in buret 12.50 ml 0.98 Post-Activity questions 15.30 ML Mol of acetic acid 10.016 mol Final volume of NaOH in buret 54.00mL 50.ML 41.90mL n mol acid 0.016E am Slov mol acce Molacid 16m² yoland (2) 0.016 Molarity of Acetic acid 10.994 M. Mol NaOH added. 51.5 49.12 12616 1. Does your molarity of acetic acid agree with the percent of acetic acid present in the sample? Use a calculation to determine this 2. At what pH does phenolphthalein turn pink? Do you think this causes an error in the measurement of the equivalence point? 3. Describe how determining the titration of an unknown base with a known acid using phenolphthalein as an indicator would differ from our titration today. Discussing the expected changes in color would from phenolphthalein would be a good way to frame your answer.

A 17.5 mL sample of an acetic acid (CH3CO2H) solution required 29.6 mL of 0.250 M NaOH for neutralization. The concentration of acetic acid was __________ M.

2. What is the assay for Potassium iodide? Write down chemical reaction(s), the indicator used, titration endpoint and calculation formula. 3. Name

What volume of of 0.1452 M KOH is required to neutralize 25.00 ml of 0.1020 M H2SO4 ? (First, Write a balanced equation for the reaction).   __?__ mL

please answer questions 1) and 2) (they are part of the same question).    thank you

After Na2CO3 is added to the solution ___.   Question 16 options:   CaCO3 crystals form   CO2 gas evolves   Na2O precipitates

Other information not on photo  2 gram potassium bitartrate are put into a 250ml flask. 150ml water is added. The solution is stirred and left to settle. the solution if filtered through a dry funnel into a 250ml breaker. 25ml of this solution was placed into 4 different flasks each. Approximately 11.5666667ml of NaOH was added to each flask. What is the concentration of the HC4H4O6-? (Asked on the right side of the table)

If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration of this solution be? 1. op

024-SP-CHM1032-7 X + /quizzes/3786621 t Question 3 0 / 9 pts A chemist needs 225 mL of 2.4 M HCI. What volume (in mL) of 12 M HCI must be dissolved in water to form this solution? mL

Solve correctly please. A 100 mL solution is prepared by weighing 1.50 g from the mixture of KI and KBr. When the 20 mL part taken from this solution is titrated with 0.02 M AgNO3 solution, 105 mL is consumed. Accordingly, calculate the percentage of Kl in the mixture. (KI: 166 KBr: 119 g/mol) A. 56.3 B. 59 C. 41 D. 43.7 (Gpt/ai wrong answer not allowed)

What is the concentration of an HNO3 solution in percent by mass that was determined to have a concentration of O.669 M in a titration experiment? Assume a density of 1.00 g/mL. Your Answer: Answer units Previous Page Next Page Page 4 of 15

A 25.0 mL sample of H3PO4 requires 50.0 mL of 1.50 M NaOH for complete neutralization.  What is the molarity of the acid?       H3PO4   +  3NaOH  → Na3PO4  +  3 H2O Show work Group of answer choices

Constants | Periodic Table These questions refer to determing unknown concentrations of acids and/or bases. Part A In a titration experiment, a solution of rubidium hydroxide (RBOH) of unknown concentration was titrated with a solution of nitric acid (HNO3) of known concentration. 15.00 mL of the unknown rubidium hydroxide (RbOH) solution required 23.21 mL of 0.1429 mol L-1 nitric acid (HNO3) solution. What is the concentration of the rubidium hydroxide (RbOH) solution? OH 9.235x10-2 mol L-1 0.2211 mol L-1 0.2322 mol L- 0.1429 mol L-1 0.2587 mol L |-1

Please answer these three multiple type questions. Thank you very much!