151F21_reagent_problems

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U12HW Question 8 Homework • Unanswered If a student prepares 10 liters of a 0.01M NAOH solution by starting with 25 mL ofa stock solution, what is the concentration of the stock solution? Enter your answer as a numerical value with no units. Type your numeric answer and submit Unanswered 1 Submit U12HW Question 9 Homework Unanswered Fill in the Blanks Fullscreen Type your answers in all of the blanks and submit %23 a 9:35 PM 4/25/2021 "prt sc delete home end pg up 40 num 6. 8. 6. backspace lock [ home pg enter 5. J pause ↑ shift end

T18HW Question 7 Homework • Unanswered If a student prepares 10 liters of a 0.01M NaOH solution by starting with 25 mL of a stock solution, what is the concentration of the stock solution? Enter your answer as a numerical value with no units. Type your numeric answer and submit Unanswered Submit

Answered - Incorrect 1 attempt left Resubmit Question 6 Homework Unanswered Determine the molar concentration of Cl lons in 2.59E-1 M CaCiz(aq). Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal eg 2.5ES for 2.5x 10) Type your numeric answer and submit 1. Submit Unanswered 3 attempts left

Remaining Time: 41 minutes, 51 seconds. * Question Completion Status: A Moving to another question will save this response. Question 19 What concentration of 29.03 mL of H2SO4 can be prepared from 13.53 mL of 0.45 M H2SO4? 8.5 M 0.21 M 0.34 M 9.6 M A Moving to another question will save this response.

Given chart information attached Calculate the number of moles of acid

QUESTION 6 It takes 24.35 mL of a 0.35 M HCI solution to neutralize 36.44 mL of NaOH solution. Calculate the molarity of the NaOH solution. O a.0.23 M NAOH O b.0.35 M NaOH O c. 1.9 M NaOH O d. None of the above are correct. O e.0.53 M NaOH Click Save and Submit to save and submit. Click Save All Answers to save all answers. LUO

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Question 4

a) Determine the concentration of acetic acid in the 25.00 mL aliquot. b) Determine the concentration of acetic acid in the 10.0mL of vinegar. concentration NaOH = 0.101M Trial 3 Initial NaOH level 35.1 mL Final NaOH level 52.5mL The volume of NaOH used to reach the endpoint 17.4 mL

Lab 12: Solutions Oxnard College Predict the concentration if the solution is diluted to a volume of 1 liter. Show the calculation of this concentration, include units in all your work. After you make the calculation: Add water with the valve in the upper left until there is 1 liter of water in the beaker. 3. What is the concentration?. 236 ho/L-Does this match your calculation? Yes or No 4. Predict the concentration if the solution is now concentrated (by using evaporation) to a volume of .75 liters (1/2 way between .5 liters and 1 liter). Show the calculation of this concentration, include units in all your work. After you make the calculation: Evaporate water with Evaporation Slider Bar at the bottom until there is .75 liter of solution in the beaker. 5. What is the concentration? Does this match your calculation? Yes or No 6. From the concentration & Volume calculate the number of moles of solute in the solution. Show your calculation with units. 7. How does the # moles of solute…

Calculate the volume of 10.2 M HCI that must be used if you want to create 500 ml of 3.00 molar HCI. Round to 2 decimal places, include your units, and box your answer. 9. Show Your Work Search E R D F B N Alt

attached is a lab. I have all the answers. Can someone just write a nice introduction for this lab for me!! thank you

Part Two: Types of Solutions (saturated, unsaturated, supersaturated) On a solubility curve, the lines indicate the concentration of a amount of solute that will dissolve at that specific temperature. solution - the maximum Values on the graph could be dissolved at that temperature. (below, above, on) a curve represent unsaturated solutions - more solute Use the solubility curve on the first page to label the following solutions as saturated or unsaturated. If unsaturated, write how much more solute can be dissolved in the solution. Solution If unsaturated: How Saturated (S) or Unsaturated (Un)? much more solute can dissolve in the solution? a solution that contains 70g of NaNO3 at 30°C a solution that contains 50g of NH.Cl at 50°C a solution that contains 20g of KCIO3 at 50°C a solution that contains 70g of KI at 0°C

If 25.0 mL of a 6.00 M HCL solution is diluted to 2.00 L, what is the molarity of the new solution?   Determine the volume (in mL) of water that needs to be added to 25.0 mL of a 0.250 M NaBr to produce a 0.0275 M solution. Assume the volumes are additive.

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Using the images below, determine what is the unknown structure (Uk21).

I Review | Constants | Periodic Table You may want to reference (Pages 298 - 306) Section 9.4 while completing this problem. Part A Calculate the molarity of the following solutions. Calculate the molarity of 0.550 mol of glucose in 0.350 L of a glucose solution. Express your answer with the appropriate units. HA ? molarity = Value Units Submit Request Answer Part B Calculate the molarity of 89.5 g of HCl in 1.50 L of an HCl solution. Express your answer with the appropriate units. HA ? molarity = Value Units

POSTLABORATORY ASSIGNMENT 1. An oleic acid, C17H33COOH (282 g/mol), solution is added to water in a watchglass until a monolayer forms. Assume that there are no spaces between molecules in the monolayer and that each oleic acid molecule occupies an area of 0.25 nm². If the concentration of the oleic acid solution is 0.00012 g/mL, what is the experimental value of Avogadro's number? dropper pipet calibration number of drops of oleic acid in the monolayer diameter of monolayer OMA 30+20 od os pulgad Im od of ingranit yd souls mesto bonstantial = || || || 00.1 arestusslom (0) N = = = Jorna ode 65 drops/mL 16 drops 14.5 cm dirua orli unalools) mano lo zemoristalls d A(otho) wall

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I need help finding out how to the sample calculations because I cannot figure out the moles of NaOH, moles of oxalic acid, and molarity of oxalic acid in sample. I believe the molarity of oxalic acid is 0.04 M based on what I have seen but I have no clue how you would get it or if it’s even right. Basically just need help with B. Sample Calculations

A Moving to another question will save this response. Question 31 Which of the following solutions has the greatest number of sodium ion (Na)? 200.0 mL of 0.10 M Na2CO3. 200.0 mL of 0.10 M NaCl. 200.0 mL of 0.10 M NazPO4. none 200.0 mL of 0.10 M NaɔSO4 A Moving to another question will save this response. P Type here to search hp 17 18 f5 f6 f4 IOI f2 f3 ?. & 7 2. 3. 4. 6. 96 %24 %23

Try using the dilution equation to predict the molarity of the following dilution. A 200. mL sample of 5 M Substance 1 is diluted with water to bring the total volume of the solution to 600 mL. What is the concentration of the diluted solution?