GRLContent OWLV2 | Online Topics) Use the References to access important values if needed for this question. [References) How many grams of solid ammonium chloride should be added to 1.00 L of a 0.219 M ammonia solution to prepare a buffer with a pH of 9.970 ? grams ammonium chloride = g. Submit Answer Retry Entire Group 9 more group attempts remaining Previous Next Save and Exit Email Instructor Cengage Learning | Cengage Technical Support

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QUESTION 4 Kb (NH3)-1.8 x 10-5 If we mix 20.0 ml of 0.40 M NH3 with 40.0 ml of 0.20 M HCL, the solution pH will be equal to notations) QUESTION S at equilibrium. (type your answer, do not use scientific Ka (HF) 7.2 x 104 Now we mix 15.0 ml of 0.24 M HF and 15.0 ml of 0.24 M NaOH. At equilibrium, the pH of the mixture will be equal to (type your answer, do not use scientific notations)

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

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can search the web by typing the chemical name followed by SDS) b) what is the best practice to follow if a small amount of sulfuric acid (1M) comes in contact with your bare hand? 2. Write a one or two sentence statement of what the purpose of this lab is. 3. To prepare for laboratory: For each of the eight unknowns solutions that you will identify in lab (see above or table below), identify the chemical color and the pH category (acidic, neutral, or basic) that you expect to find. Prepare a table to summarize your initial expectations for the color and pH tests. A. Introduction- A Fictitious Scenario ne Chem-Police, a division of the Office of Homeland Security created in re-

Biology Match each weak acid with the pH value at which it would buffer. You are currently in a sorting module. Turn off browse mode or quick nav, Tab to items, Space or Enter to pick up, Tab to move, Space or Enter to drop. pH 33 pH 55 pH 99 Answer Bank hydrazoic acid (pKapKa of 4.64.6) formic acid (pKapKa of 3.83.8) acetic acid (pKapKa of 4.764.76) boric acid (pKapKa of 9.249.24) chloroacetic acid (pKapka of 2.872.87) ammonium (pKapKa of 9.259.25)

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

Please answer both questions 9 and 10 and please show all work

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working