X + Question 11 of 15 Determine the molar mass of CH3OCH3. g/mol 1 2 3...
Question 14 of 15 Determine the molar mass of Mg(NO3)2. g/mol 1 4 2 5 3 6 7 8 9
X + Question 12 of 15 Determine the molar mass of CH3OH. g/mol 1 2 3
Determine the molar mass of the following organic compound. | g/mol 2 3 1 4 6 C 7 00 9 +/- 0 X 100 Determine the molar mass of the following organic compound. F g/mol 1 2 3 НАС 4 6 C 7 8 9 +/- 0 x 100 Which of the following molecules can be classified as an alkene? А B OH NH2 A) A OH B) B D C) C O= NH2 D D
QUESTION 4 What is the molar mass of nitroglycerin, C3H5(NO3)3? O 199 g/mol O 179 g/mol O 227 g/mol O 185 g/mol QUESTION 5 The number of moles in 37.80 g of C2H60 (molar mass = 46.1 g/mol) is 1.575 x 100 9.072 x 102 1.743 x 103 8.200 x 10-1 QUESTION 6 Determine the percentage composition (by mass) of oxygen in H2SO4. 65.25 %
I need help on part #3, #7, #8, #9
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Trial 1 Trial 2 Trial 3 0.5038 O.5086 1. Mass of KHCSH O4 (KHP), g 2. Molar mass of KHCsH404, g/mol 3. Moles of KHC$H404, mol 4. final reading of NaOH, mL 23-5lm 5.inital reading of NaOH, mL 6. Volume of NaOH dispensed, mL 23.Sl mL 23.51 m (Final Reading -Initial Reading) 7. Moles of NaOH reacted (1:1 mole ratio with KHP) 8. Molarity of NaOH, mol/L 9. Average Molarity...
Remaining Time: 1 hour, 33 minutes, 40 seconds. Question Completion Status: 12 15 13 10 11 14 9 8 7 4 5 6 3 2 1 Moving to the next question prevents changes to this answer Question 1 of 15 Question 1 8 points When 60.0 grams of an unknown compound are dissolved in 0.500 kg of benzene, the freezing point of the resulting solution is 126"C. The freezing point of pure benzene is 5.44°C, and the Kffor benzene is...
Determine the mass of X needed to react with 7.086 g of Y. Given that the molar mass of X is 206.9 g/mol and Y is 166.3 g/mol. The reaction is the following: 1 X + 2 Y --> 2 Z
Which of the following is the strongest acid? chloroacetic acid (molar mass: 94.49 g/mol; Ka = 1.4 x 10-3) formic acid (molar mass: 46.03 g/mol; Ka = 1.8 x 10-4) propionic acid (molar mass: 74.08 g/mol; Ka = 1.3 x 10-5) hypoiodous acid (molar mass: 143.89 g/mol; Ka = 2.0 x 10-11) acetic acid (molar mass: 60.05 g/mol; Ka = 1.8 x 10-5)
5. 74.1% carbon, 8.6% hydrogen, & 17.3% nitrogen by mass. Its molar mass = 160 g/mol. 6. 59.0% carbon, 7.1% hydrogen, 26.2%oxygen, & 7.7% nitrogen by mass. Its molar mass = 180 g/mol. Find the molecular formula of a compound given: 7. 212.1 g sample with 42.4 g hydrogen and 169.7 g carbon. Molar mass = 30.0 g/mol 8. Carbon & Hydrogen containing compound sample with molar mass = 114.26 g/mol. 1 mole of the sample contains 18.17 g hydrogen....
Question 15 of 20 Submit The percent by mass of methanol (MM 32.04 g/mol) in an aqueous solution is 22.3%. What is the molality of the methanol solution? 1 2 3 X 4 5 6 C 7 8 +- x 100 Tap here or pull up for additional resources