O d. QUESTION 2 How many grams of MgCl2 (molar mass = 95.21 g) is required...
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.
1. The molar mass of the crystal violet powder is 407.99 g/mol. How many grams of crystal violet are needed to prepare 2.00 L solution with a concentration of 3.00 x 10'M? Mass of Crystal Violet (grams):
Question 43 4 pts Molarity & solution concentration: Your answers need to have the correct number of significant figures. What's the molarity of a solution containing 48.5 g of MgCl2 (Molar mass = 95.21 g/mol) in 1.75 L volume? HTML Edita
In
the Following reaction when 13g C2H2 are made, how many grams of
H2O reacts? CaC2+H2O--->Ca(OH)2+C2H2
OC QUESTION 2 When 56.4 g of NH3 reacts with 171 O, to give NO, and H,0, how many grams of H2O can be made? 59.7 33.6 895 QUESTION 3 How many moles of NaOH are needed to neutralize 15.0 mL of 0.235 M HCl solution? 210mlee Click Save and Submit to save and subunit. Click Save All Answers to save all answers. acer
How many grams of NaOH (molar mass = 40.000 g/mol) is required to prepare 100.0mL of 0.125M solution?
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
QUESTION 2 1 po How many grams of calcium chloride were used if 0.655 grams of calcium oxalate monohydrate were produced, assuming a 100% yield. This means all of the calcium chloride was converted to calcium oxalate monohydrate. Report your answer to 3 decimal places in grams Click Save and Submit to save and submit. Click Save All Answers to save all answers, Save All Answers
QUESTION 1 1 points Save Answer The evaporation of ethanol (molar mass = 46.07 g/mol) involves an enthalpy change of 0.918 kJ/g. What is the molar enthalpy of vaporization of ethanol? 0 -0.0369 kJ/mol +37.8 kJ/mol O-42.3 kJ/mol O +1.18 kJ/mol O 12.2.1.1.al Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window Save and Submit
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 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.