Calculate the number of grams you need to make 500ml of 0.025 M Na2S2O3•5H2O.
Calculate the number of grams you need to make 500ml of 0.025 M Na2S2O3•5H2O.
you need 500mL of 1.5 M HCL for an experiment but the stock room only has 12 M HCl how do you make 1.5 M HCL V1= (c2)(v2)/c1mole/ liter = (1.5m)(500mL)/12 mole/liter = 41.6? This is the answer I got but it doesn't sound right consider its significantly higher than 1.5
A chemist dissolved 65.353 grams of CuSO4 * 5H2O into enough water to make 150.0 mL of aqueous CuSO4 solution. (a) Calculate the concentration of this solution, in molarity. (b) What is the normality of the Cu2+ ions in the above solution? (c) He then reacted the above CuSO4 solution with some 0.225 M KI solution. The reaction occurs as follows: 2 CuSO4 (aq) + 4 KI (aq) à 2 CuI (s) + I2 (aq) + 2 K2SO4 (aq)...
You wish to prepare 100 mL of a buffer solution that is 0.025 M in carbonic acid (H2CO3). The pKa of H2CO3 is 6.351. Calculate the amount of H2CO3, in grams, that you will need to weigh out.
You wish to prepare 100 mL (total volume) of a buffer solution that is 0.025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution.
Calculate the number of grams of solute that has to be used to make the following solution: 245.3 mL of 0.283 M C6H12O6 (glucose)
1a. If you react 0.025 moles of 2-methylbromobenzene, 0.7 grams of Mg, and 10 grams of dry ice, what is the theoretical yield of 2-methylbenzoic acid in grams? b. Assume that you have produced the amount of 2-methylbenzoic acid from the previous question. What volume, in mL, of 1M NaOH would you need to fully deprotonate the 2-methylbenzoic acid?
how many millimeters of a 90.0% (w/v) NaCl solution will you need to prepare 500mL of a 0.225% NaCl solution? What amount of NaCl (MW 58.44) in grand must be combined with water to prepare 1000mL of a 0.90% (w/v) normal saline solution? What amount of NaHCO3 (MW 88.01) in grams is needed to prepare 5000mL of 0.024 M solution? Please explain - thank you!
You need to make a 500ml of a 20%(w/v) Sodium acetate solution using Na acetate.3H2O which has a fw of 136.080 and an assay value of 99.00%. anhydrous Na acetate has a f.w. of 82.080. how much of the na Acetate.3H2O must you weigh out?
3. Calculate pH of: (1) 0.025 M LiOH (2) 0.025 М НВО. (3) 0.025 M HCN if Ka=6.2 x 10"。
you need to make 2.00 L of 0.05 M copper (II) nitrate solution. How many grams of copper (II) nitrate will you require?