How much of a 0.3 M solution of NaBr can be made if you use 30 mL of a 6 M stock solution?
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How much 0.25 M solution can be made from diluting 500 mL of 9 M stock? 13.8 mL 18 mL 18 L 13.8 L
You have just made a solution by combining 750 mL of a 0.3 M sodium acetate solution with 250 mL of 1 M acetic acid (pKa = 4.7). what is the pH of the resulting solution? 65.
What is the molarity of a NaBr solution made by diluting 75 mL of a 0.20 M solution to a final volume of 0.10 L?
You want to dilute a 6.00 M HCl solution to 3.01 M. You need 500. mL of the diluted solution. How much stock solution (6.00 M HCl) must you use? Give your answer in mL.
Making Solutions Practice Problems: I. How would you prepare 100 ml of a 30% (w/v) solution of polyethylene glycol (PEG)? 2. How would you prepare 50 ml of a 9 % (w /v ) solution of NaCI? 3. How would you prepare 200 ml of 70 % ( v /v ) solution of ethanol from a stock of 95% ethanol? How would you prepare 200 ml of 0.3 M NaCl? (NaCl MW 58.44) 4. 5. How are 50 ml of...
A stock solution of 5 M sodium acetate has been made. You want to make a 50 ml 0.33 M sodium acetate solution for your lab bench. How much of the stock solution and water do you need? (ml)
Part A How much of a 6.0 M sucrose solution should you use to make 79.0 mL of a 0.045 M solution? Express your answer using two significant figures. V ΑΣφ mL Submit Request Answer Provide Feedback
How much volume in mL will you need to take from 4.3 M concentrated stock solution if you would like to prepare a diluted 0.6 solution with 100 mL?
A student must make a 0.10 M solution fo NaHCO3. How many mL of solution can be made using a 0.35 g sample of NaHCO3? 4.2 ml 3.5 mL 100 mL 42 mL 35 mL
A student must make a 0.10 M solution fo NaHCO3. How many mL of solution can be made using a 0.35 g sample of NaHCO3? 4.2 ml 3.5 mL 100 mL 42 mL 35 mL
You are given a 2.5M sodium chloride stock solution. Calculate how much of this solution you need to make the following: (4 pts) a) 250 milliliters (mL) of a 0.25 M solution. How much water would you need to add to bring the final volume to 250mL? b) One liter of a 50mM solution. How much water?