1. The molar mass of the crystal violet powder is 407.99 g/mol. How many grams of...
How many grams of MgCl2 (molar mass = 95.2 g/mol) should be added to 300 grams of water to give a solution that freezes at -3.00°C? Kf of H2O is 1.86°C/m.
Calculate how many grams of Na2EDTA dihydrate (, molar mass = 372.24 g/mol) will be needed to prepare 500.0 mL of an EDTA solution that is approximately 0.010 M. (Enter just the numeric value with the proper SFs) Answer in grams
How many grams of NaCl (1 molar mass = 58.44 g/mol) are required to make 350 mL of a 1.25 M NaCl solution
How many grams of NaOH (molar mass = 40.000 g/mol) is required to prepare 100.0mL of 0.125M solution?
1.) How many moles of NaOH (aq) are needed to neutralize 3.2 mol H2SO4(aq)? 2.) How many moles of Ba(OH)2 (aq) are needed to neutralize 3L of 0.8 M HCl solution? 3.) What is the volume of 0.5 M H2SO4 solution needed to neutralize 0.15 L of 0.6M NaOH solution? 4.) How many grams of NaOH needed to neutralize 0.25 L of 0.6 M H2SO4 solution? Molar mass of NaOH= 40 g/mol 5.) 2.8g of Ba(OH)2(s) is added to water...
O d. QUESTION 2 How many grams of MgCl2 (molar mass = 95.21 g) is required to prepare 1.00 L solution that has a concentration of 0.586 M? a. 1018 b.55.8 g OC 10.4 g d. 2118 QUESTION 3 Chek Save and Submit to save and submit. Click Save All Answers to save all answers
What mass in grams of the dihydrate H2C2O4 • 2 H2O (molar mass = 126.0 g/mol) is needed in order to make 100.0 mL of a 0.346 M solution of H2C2O4 (molar mass = 90.0)?
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Experiment 3: Determination of the Rate Law - Crystal Violet and Sodium Hydroxide Trial 1 Concentration of crystal violet (M) 0.000100 M Concentration of sodium hydroxide (M) 0.0200 M Time (min) Absorbance Concentration (crystal violet] In (crystal violet) 1/[crystal violet) (use the Molar Extinction Coefficient of 87,000) 3 0.479 4 0.429 I 5 0.376 6 0.326 7 0.296 8 0.267 9 0.241 10 0.215 E
How many grams of a gas with a molar mass 36.02 g/mol would be required to occupy a 1894 mL flask at 1 atm and 90.3 degrees Celcius? Record your answer in scientific notation to 2 decimal spaces.
please help due tonight
10. What mass (in grams) of NaCl (molar mass = 58.4 g/mol) is needed to create 250.0 ml. of a 1.50 M NaCl solution (6 points)