You make 1L of an aqueous solution that contains 35g of fructose (C6H12O6).
A. What is the molarity of fructose in this solution?
B. How many litres of water would you have to add to this solution to reduce the molarity you calculated in Part A by a factor of two?
You make 1L of an aqueous solution that contains 35g of fructose (C6H12O6). A. What is...
You make 1,000 L of an aqueous solution that contains 35.0 g of sucrose (C12H22011). (a) What is the molarity of sucrose in this solution? (b) How many liters of water would you have to add to this solution to reduce the molarity you calculated in part (a) by a factor of two?
Find the concentration (molarity) of an aqueous solution prepared by dissolving 10g of NaOH(s) in 100mL of water. Find the concentration (molarity) of a NaOH solution that contains 5g of NaOH and 1000 mL of water. What is the new concentration when we add 1L more of water to the prepared solution in question (2).? If you have 10 ml of a 5M solution of NaOH, how many mol of NaOH you have? How many mol of Na+ you have?...
Goal- to make a 1L solution of phosphate buffer at pH 7.8 If you make up a 1M aqueous solution each of: NaH2PO4 and Na2HPO4 How much of each solution would you need to add (mix) to make up a 1 liter solution of 0.4 M phosphate at pH 7.8 Hint: the pKa for H2PO4- <-> HPO4 2- + H+ is 6.8)
12.5g of glucose (C6H12O6) is dissolved in enough water to make 750.0ml of solution. (molar mass of glucose = 180.16 g) What is the molarity of the solution? How many moles of glucose are contained in 237 ml of the above glucose solution? What volume (L) of this glucose solution would contain 0.079 moles of glucose?
1: You need to make an aqueous solution of 0.212 M barium hydroxide for an experiment in lab, using a 300 mL volumetric flask. How much solid barium hydroxide should you add? ____grams 2: How many milliliters of an aqueous solution of 0.219 M chromium(III) sulfate is needed to obtain 3.70 grams of the salt?____ml 3: In the laboratory you dissolve 23.1 g of zinc nitrate in a volumetric flask and add water to a total volume of 250 ....
1. You need to make an aqueous solution of 0.138 M magnesium bromide for an experiment in lab, using a 125 mL volumetric flask. How much solid magnesium bromide should you add? 2. How many milliliters of an aqueous solution of 0.163 M aluminum nitrate is needed to obtain 13.4 grams of the salt? 3. n the laboratory you dissolve 19.8 g of calcium chloride in a volumetric flask and add water to a total volume of 250 . mL....
an aqueous solution of fructose( mw180.2) contains 1 in 25 of dextrose. if the density of solution is 1.24g/ml, hiw many moles of dextrose are there in 248g of solution?
12) You are preparing 960.0 grams of an aqueous solution that contains that contains 32.00% by weight of Na2CO3. What mass of solute would you use and what mass of solvent would you use? [4 points) ider 13) What is the weight percent of a calcium chloride (CaCl2] solution that is made by dissolving 151.6 grams of CaCl in 648.4 grams of water? [4 points) 14) Calculate the new molarity of a 20.0-ml sample of 4.50 M MgCl2 solution that...
You need to make an aqueous solution of 0.127 M silver nitrate for an experiment in lab, using a 125 mL volumetric flask. How much solid silver nitrate should you add? In the laboratory you dissolve 20.6 g of copper(II) chloride in a volumetric flask and add water to a total volume of 500 . mL. What is the molarity of the solution?
If drinking water contains 1ppm of lead, how many milligrams of lead are contained in 1L of drinking water? What is the molarity of lead in drinking water? (assume density of drinking water is 1.00g/mL) ***please do not show as one massive fraction conversion, I would really like it broken into parts. Thank you*****