Suppose you need to make 100.00 mL of a solution that is 4.0 ppm Mg2+ and 15.0 ppm Na+. How many grams of reagent MgCl2.6H2O and how many grams of reagent NaCl should you use?
Suppose you need to make 100.00 mL of a solution that is 4.0 ppm Mg2+ and...
you need to make 250 mL of a 25% soduim Gloopate solution. you have Na Gloopate.10H2O which has a mw of 100.00. how many grams of Na Gloopae.10H2O must you weigh out?
All multiple parts to the same problem, thank you! :) Solution Stoichiometry: We need to make a 0.250 M sodium carbonate solution. We will use a 100.00 mL volumetric flask. How many grams of solid sodium carbonate should we add to the flask to make the solution? Use 105.99 as the molar mass, report correct sig figs, and use g as the unit. Solution Stoichiometry: We need to make a 0.200 M calcium chloride solution. We will use a 100.00...
If you want to make 200.00 mL of a solution that is 1.75 ppm and you have a 12.0 ppm stock solution, how much of the stock solution should you measure out and dilute with water?
you need to make 250 mL of a 0.75 N sodium Goopate solution. you have Na Gloopate.10H2O with f.w. of 180.000, and has an assay value of 88%. anhydrous Na Gloopate has a f.w. of 100.000. how many grams of Na Gloopate.10H2O must you weigh out?
Suppose you have 100.00 mL of a solution of a dye and transfer 2.00 mL of the solution to a 100.00 mL volumetric flask. After adding water to the 100.00 mL mark, you take 5.00 mL of that solution and again dilute to 100.00 mL. If you find the dye concentration in the final diluted sample is 0.000129 M, what was the dye concentration in the original solution? Concentration
Suppose you need to prepare 125.5 ml of a 0.256 M aqueous solution of NaCl. What mass of NaCl do you need to use to make the solution? Answer:
How many grams of glucose would you need to make 100 ml of a 15% solution? And how many milliliters of what would you use?
You are asked to make a 50 ppm solution of benzene in alcohol. You have 200 mL of alcohol (density 0.84 g/mL). How many mL of benzene (density 0.96 g/mL) do you need to add to add to the alcohol to make it 50 ppm Benzene in mixture? (10)
How many grams of NaCl (MW 58.44) should you use to make a 500 ml of a 0.64 M solution?
What is pH of a solution if you mix: 10 ml of 0.2 M HCl and 35 ml of 0.15 M NaOH. 200 ml of 20 mM NaOH and 100 ml of 40 mM HCl. 200 ml of 250mu M NaOH and 25 ml of400 mu M H_2 SO_4. How many grams NaCl is is needed to prepare 600 mL of 250 ppm Na solution?