We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
calculate mol of methanol. g/ml: 9,67 g/mol: 32,04 the answer i got was 0,302, but it...
A student dissolves 2.5 g of methanol (CH3OH) in 100. mL of a solvent with a density of 1.18 g/mL. The student notices that the volume of the solvent does not change when the methanol dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity = 0 molality = 1 x 6 ?
I know that the answer
is a but what are the steps??
3. Calculate the vapor pressure at 20.0° C of a saturated solution of the nonvolatile solute urea CO(NH2)2, in methanol, CH3OH. The solubility is 17.0 g urea/100.0 mL methanol. The density of methanol is 0.792 g/mL and its vapor pressure at 20.0° C is 95.7 mmHg. [The molar mass of urea is 60.06 g/mol and for methanol is 32.04 g/mol] A) 85.9 mmHg B) 28.3 mmHg C) 24.7...
How many milliliters of pure liquid methanol (CH3OH, MW = 32.04 g/mol) are needed to prepare 250.0 mL of an aqueous solution of 19.0 g/L methanol? The density of pure liquid methanol is 0.791 g/mL. Then, express the methanol concentration as a volume percent (% v/v).
Calculate the molar mass of calcium nitrate. Calculate the molar mass of calcium nitrate. 164.10 g/mol 132.10 g/mol 102.09 g/mol 136.03 g/mol none of the above I typically understand how to calculate the molar mass but not when it is a compound. I originally got 102.09 but it was marked wrong on my homework and I do not know how to get to the correct answer.
the answer is E, but I don’t understand how. When I worked it out I
got 8.0 g/mol
- 1. O, effuses twice as fast as an unknown gas X at the same temperature. What is the molar mass of the unknown gas? A. 8.0 g/mol B. 64 g/mol C. 23 g/mol D. 16 g/mol .E.128 g/mol
c) Methane, when liquefied, has a density of 0.466 g mL−1, the density of methanol is 0.791 g mL−1 at 25 ∘C. Calculate the heat released in kilojoules when 1.00 L of liquid methane and liquid methanol, respectively are burned. Enter the energy change for methane followed by the energy change for methanol in kilojoules separated by a comma. Do not include units or positive or negative signs.
i need the answer
93.2 mL containing 0.0932 mol NaOH is mixed with 46.6 mL containing 0.0466 mol H2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid through which passes a calibrated thermometer. The temperature of each solution before mixing is 21.45 °C. After adding the NaOH solution to the coffee cup and stirring the mixed solutions with the thermometer, the maximum temperature measured is 32.10 °C. Assume that the density of the mixed solutions...
Calculate the osomolarity of 0.5 g/mL of magnesium sulfate
heltahydrate (MgSO4*7H2O) MW= 246.47 g/mol
Calculate the osmolarity of 1 Liter of solution that contains
40mEq of sodium, 20 mEq of potassium, 60 mEq of chlorine and 5% w/v
of dextrose (mol way: 180 non-electrolyte).
My teacher gave me the answer but I didn't understand how they
got it. thank you.
2. Calculate the osmolarity of 0.5 g/mL of magnesium sulfate heptahydrate - MgSOa.7H20 MW-246.47 g/mol 0.59 Calculate the osmolarity of...
what is the mol of ammonia in a 25%ammonia solution that is NH4OH? g/mol: 35,05 and g/ml: 1 mL ( consider density)
What is the molar mass of methanol: CH3OH ? Answer the question in g/mol.