ProAtWork7
24.02.2020 •
Chemistry
G Sucrose (C12H22O11), a nonionic solute, dissolves in water (normal freezing/melting point 0.0°C) to form a solution. If some unknown mass of sucrose is dissolved in 150.g of water and this solution has a freezing point of -0.56°C, calculate the mass of sucrose dissolved.
Solved
Show answers
More tips
- G Goods and services How to Choose a Video Camera: Tips from Professionals...
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- H Health and Medicine Novomin: What is it and how to use it?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
Answers on questions: Chemistry
- C Chemistry What is the source of Earth’s magnetic field?...
- C Chemistry What is the approximate depth of the calcite compensation depth (CCD) in the ocean? View Available Hint(s) What is the approximate depth of the calcite compensation depth...
- C Chemistry The reaction 2 H2 + O2 → 2 H2O produces water. When 10.0 g H2 reacts with 64.0 g O2 in a large tank, the final mixture in the tank after the reaction finishes will contain...
- C Chemistry When solving stoichiometry problems, you have to convert grams to moles, then to moles again, and what is it converted back to in the third step?...
- M Mathematics In a 30-60-90 triangle and the hypotenuse is 14 and the long side is 7 radical 3 what is the shorter side...
- A Arts Finish lyric: we wipe his nose i get racks to go outside trust me at the top it isnt lonely act up mask up boy i dare is it ok if i call you my prada bae play if you...
- E English Https://d1wsaxfu7b8rcr.cloudfront.net/957430ad-a46c-432b-8c87-eb64136385a3/Homeless%20and%20Eager%20to%20Learn-Assignment%202.html Paste & search the link for the...
- B Business Logan Township acquired its water system from a private company on June 1. No receivables were acquired with the purchase. Therefore, total accounts receivable on June...
- M Mathematics Ds and Lones - of Pyramids and l... of Pyramids to S... -OT LOTTES JOV X 11.3.MR-3 Segments that appear to be tangent are tangent to both circles, and CD = 18. Find AC....
- C Chemistry Replacement of CaO by PbO in soda-lime glass results in . A. denser glass with a higher refractive index B. a softer glass with a lower melting point C. glass with a...
Ответ:
15.4 g of sucrose
Explanation:
Formula to be applied for solving these question: colligative property of freezing point depression. → ΔT = Kf . m
ΔT = Freezing T° of pure solvent - Freezing T° of solution
Let's replace data given: 0°C - (-0.56°C) = 1.86 C/m . m
0.56°C / 1.86 m/°C = m → 0.301 mol/kg
m → molality (moles of solute in 1kg of solvent)
Our mass of solvent is not 1kg, it is 150 g. Let's convert it from g to kg, to determine the moles of solute: 150 g. 1kg/1000g = 0.150 kg
0.301 mol/kg . 0.150kg = 0.045 moles.
We determine the mass of sucrose, by the molar mass:
0.045 mol . 342 g/1mol = 15.4 g
Ответ:
Along the coast, its always colder near water