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 230 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
Wow, this really help

bigsis44

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Movement of fluids and solution tonicity Movement of fluids and solution tonicity
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Sample prescriptions of antibiotics for prophylaxis against infective endocarditis. Sample prescriptions of antibiotics for prophylaxis against infective endocarditis.
How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ... How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ...
How many Cl atoms are present in 2.16 moles of NCl3? How many Cl atoms are present in 2.16 moles of NCl3?
What is the estimated age of the archaeological sample What is the estimated age of the archaeological sample
Video: Definition of heart rate

For a complete list of videos, visit our video library