Question
In: Chemistry
Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d...
Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL) and 387 mL of CH3CH2CH2OH (d = 0.811 g/mL). I get 2.01m, but I am not sure if I am doing this right.
Solutions
Expert Solution
mass of CH3OH = volume*density
= 25.5*0.792
= 20.196gm
mass of CH3CH2CH2OH = volume * density
= 387*0.811
= 313.857 gm it is solvent because greater amount
molality = mass of CH3OH*1000/gram molar mass * weight of solvent in gm
= 20.196*1000/32*313.857
= 20196/10043.424
= 2.01m >>>> answer
queen_honey_blossom answered 2 years agoRelated Solutions
1) If a solution is prepared by mixing 15.7 mL of CH3CH2OH (d = 0.792 g/mL)...
1)
If a solution is prepared by mixing 15.7 mL of CH3CH2OH (d = 0.792
g/mL) and 457 mL of CH3CH2CH2OH (d = 0.911 g/mL) what is the
concentration in molality m?
2) What would be the vapor pressure if 55.6 g of a sugar
(C6H12O6) is dissolved in 440.0 mL of water (d = 1.00 g/mL). The
vapor pressure of water at this temperature is 23.9 torr.
3) 13.2 mg of an unknown non-volatile compound is dissolved in
403...
11. Calculate the pH of a solution prepared by mixing a) 48.0 mL of 0.212 M...
11. Calculate the pH of a solution prepared by mixing
a) 48.0 mL of 0.212 M NaOH and 66.0 mL of 0.187 M HCl
b) 69.0 mL of 0.345 M KOH and 125 mL of 0.400 M HC3H5O2
c) 350 mL of 0.130 M NH3 and 400 mL of 0.100 M HCl
Calculate the pH of a solution prepared by mixing a) 25.0 mL of 0.512 M NaOH...
Calculate the pH of a solution prepared by mixing a) 25.0 mL of
0.512 M NaOH and 34.0 mL of 0.187 M HCl b) 46.0 mL of 0.235 M KOH
and 50.0 mL of 0.420 M HC3H5O2 c) 400 mL of 0.250 M NH3 and 250 mL
of 0.120 M HCl
Calculate the pH of a solution prepared by mixing a) 25.0 mL of 0.512 M NaOH...
Calculate the pH of a solution prepared by mixing
a) 25.0 mL of 0.512 M NaOH and 34.0 mL of 0.187 M HCl
b) 46.0 mL of 0.235 M KOH and 50.0 mL of 0.420 M
HC3H5O2
c) 400 mL of 0.250 M NH3 and 250 mL of 0.120 M
HCl
Calculate the pZn of a solution prepared by mixing 25.0 mL of 0.0100 M EDTA with...
Calculate the pZn of a solution prepared by mixing 25.0 mL of
0.0100 M EDTA with 50.0 mL of 0.00500 M Zn2+. Assume
that both the Zn2+ and EDTA solutions are buffered with
0.100 M NH3 and 0.176 M NH4Cl.
a solution is prepared by mixing equal masses of methanol, ch3oh, and ethanol, ch3ch2oh what is...
a solution is prepared by mixing equal masses of methanol,
ch3oh, and ethanol, ch3ch2oh what is the mole fraction of each
component in the mixture
Calculate the pH of a buffer solution prepared by mixing 20 mL of 5.0% acetic acid...
Calculate the pH of a buffer solution prepared by mixing 20 mL
of 5.0% acetic acid with 20 mL of 0.50 M NaOH and 100 mL of
water
a solution is prepared by mixing 1.000 mole of methanol(CH3OH) and 1.4 mole of propanol (CH3CH2CH2OH)....
a solution is prepared by mixing 1.000 mole of methanol(CH3OH)
and 1.4 mole of propanol (CH3CH2CH2OH). what is the composition of
the vapor (in mole fractions) at 40 degrees Celsius?
vapor pressures at 40 degrees celsius:
-pure methanol: 303 torr
-pure propanol: 44.6 torr
CH3OH mole fraction in the vapor_______?
propanol mole fraction in the vapor_______?
b). what is the composition of the vapor of a pentane/hexane
solution that has a vapor pressure of 471 torr at 25 degrees
celsius...
What is the molality of a solution containing 50.6 mL of water (d= 1.00 g/mL) and...
What is the molality of a solution containing 50.6 mL of water
(d= 1.00 g/mL) and 0.122 g of 2-pentanol?
Calculate the pH of a solution prepared by mixing 20 ml of 9.12 mol/L salicylic acid...
Calculate the pH of a solution prepared by mixing 20 ml of 9.12
mol/L salicylic acid with 20 ml water
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- What are the accounts that make up Shareholder’s Equity on the Balance Sheet?
- Problem 18-5 Beta and Leverage North Pole Fishing Equipment Corporation and South Pole Fishing Equipment Corporation...
- Stenson, Inc., imposes a payback cutoff of three years for its international investment projects. Assume the...
- Mayfield Company sells two products, Blue models and Plaid models. Blue models sell for $41per unit...
- Write an overview of common concerns about adolescent development. Cite any sources.
- When a company has positive net income, does that also mean they have positive cash flows?...
- Consider a project with an initial investment of $60,000, a 6 year usefule life (and study...
ADVERTISEMENT