This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample ... (Read 231 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Mar 21, 2021

Question 1

A 20.0-g sample of methyl alcohol (CH3OH, molar mass = 32.04 g/mol) was dissolved in 39.0 g of water. The mole fraction of CH3OH is _____.

◦ 0.288
◦ 0.624
◦ 0.339
◦ 4.47
◦ 0.224

Question 2

A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing 1.994 kg of water?

◦ 626.1 g
◦ 107.1 g
◦ 222.0 g
◦ 365.9 g
◦ none of these are correct
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by bobbie on Mar 21, 2021

mbcrismon

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


bobbie

  • Member
  • Posts: 592
Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Evolution of the Sun's luminosity, radius and effective temperature compared to the present Sun Evolution of the Sun's luminosity, radius and effective temperature compared to the present Sun
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
Solution to Exponent Law Problem Solution to Exponent Law Problem
Solution to exponential problem Solution to exponential problem
With solution With solution
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ... Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library