Another widely used solution is a buffer called Tris. It’s called Tris because it’s easier than saying hydroxymethyl aminomethane. Its molar mass is 121.14 g. How would we prepare 100 mL of a 1.70 M stock solution of Tris? Don’t worry about the big words. All the information you need is in front of you. How many grams of Tris crystals would you dissolve? Select one: a. 20.6 g b. 7.12 g c. 63.5 g d. 17.2 g

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Q: need to prepare 280.0 mL of a 0.3180 M Fe3+ solution by diluting a 8.00 M stock solution of…

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Q: the bottle is labeled 174.3mg of Fe(NH4)2(SO4)2•6H2O in 1.000 liter, what is the concentration in…

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Q: A student prepares a stock solution 100 mL of 0.50 M copper (II) sulfate solution, which is blue in…

A: M1=0.50M M2=0.20M V2=60ml

Q: 6-ROX is a dye with a molecular weight of 631.67 g/mol. A student prepares a stock solution by…

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Q: Calculate the solubility of Ag,CO, in water at 25 °C. Round your answer to 2 significant digits. x10

A: Ksp  for Ag2CO3 = 8.10 × 10-12  Ag2CO3 ⇔2Ag+ +CO32- Ksp = [Ag+]2 [CO32-] Ksp = 4S3  8.10 × 10-12 =…

Q: 10. To perform an experiment, you need 0.800 L of 12.0 M sulfuric acid. You go to the acid cabinet…

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Q: You are provided with a 2.5mg/ml stock solution. In the experiment you are to use a 0.05mg/ml…

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Q: a) Sodium carbonate, Na2CO3 (105.9888 g/mol) has been widely applied in many chemical processes such…

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Q: If a 250 mL solution of ethanol in water is prepared with 4 mL of absolute ethanol, what will be…

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Q: A student titrated a 50.00 mL sample of 1.00 M sodium hydroxide solution NaOH with 30.00 mL…

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Q: Calculate the concentration of the chemist's working solution.

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Q: A) How many mL of a 0.158 M aqueous solution of sodium nitrate, NaNO3, must be taken to obtain 1.58…

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Q: Maria needs to dilute her stock of 15.0 M HNO3 solution for an experiment. She wants to prepare 525…

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Q: 1. On a shelf sits a bottle of NaCl solutions with a molar concentration of 2.50 M and a total…

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Q: Nickel (II) Nitrate solution is a pretty green color. If you were to add 12.0 grams of solid nickel…

A: Mass of Nickel (II) Nitrate ( Ni(NO3)2 ) = 12 grams Volume of solution = 250 mL = 0.250 L

Q: How much mass is lost

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Q: You are asked to prepare TBS buffer and see that there is a bottle of TBS buffer (liquid) in the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Sodium lactate, NaC3H5O3, has uses in medicine to treat low blood pH and in soaps to create moisture…

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Q: A saturated lead(II) chloride solution has a chloride concentration of 3.24 × 10−2 mol/L. What is…

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Q: you need to make 150.0 mL of a 0.10 M NaCl solution. You have solid NaCl, and your lab partner has a…

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Q: One milliliter of a certain KMnO4 solution will completely react with 0.3400 g FeSO4: Fe2+ + MnO4…

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Q: 100 90 80 NANO3 70 60 CaCl2 50 Pb(NO3)2 40 KCI NaCl 30 20 KCIO3 10 10 20 30 40 50 60 70 80 90 100…

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Q: A cough syrup, which comes in a concentrated syrup, contains red dye #40. The red dye #40 syrup is…

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