1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alina1380 [7]
2 years ago
15

a total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. the gram-formula

mass of sodim notrate is 85 grams per mole. determine the molarity of the solution
Chemistry
1 answer:
kompoz [17]2 years ago
7 0

Answer:

1.4 moles/ 2.0 L= 0.7 M

Explanation: Molarity= moles of solute/ Liters of solution

therefore just plug the numbers in and you'll find the molarity to equal. 0.7

You might be interested in
Which situation is the best example of regulation in an economic system?
velikii [3]

Hope this helps!

Answer: The correct option is: "A state agency has been created to monitor the production and distribution of sports drinks."

Explanation:

The economic regulation are the provisions through which the government intervenes in the markets to set prices or quantities of production, or establish technical specifications and in general, restrictions that must be met by citizens and companies to participate in a market.

5 0
2 years ago
1.From the pictures above,which shows a higher temperature?why?<br>2.which has more heat?why?​
sineoko [7]

Answer:

The coffee has a higher temperature because a pool is so you can have fun and relax in while coffee can warm you up by drinking it.

Explanation:

Hope it helps   :)

4 0
2 years ago
C2F4 effuses through a barrier at a rate of 4.6x10-6 mol/hour, while an unknown gas effuses at a rate of 5.8x10-6 mol/hour. What
umka21 [38]
The  molar mass  of  the unknown  compound  is   calculated   as   follows

let the unknown  gas be represented by   letter  Y

Rate of C2F4/  rate of  Y  = sqrt of   molar  mass of gas Y/ molar mass of  C2F4

 =  (4.6  x10^-6/ 5.8  x10^-6)  = sqrt  of  Y/ 100

remove  the  square  root  sign  by  squaring  in both  side

(4.6  x  10^-6 / 5.8  x10^-6)^2 =  Y/100

= 0.629 =Y/100

multiply  both side  by  100

Y=  62.9 is  the molar  mass of unknown  gas



5 0
3 years ago
In this chemical Formula for Ammonia, the Subscripts indicate what?
zubka84 [21]

Answer:

B

Explanation:

B. There are two atoms of Nitrogen and two atoms of Hydrogen combined to make Ammonia.

7 0
3 years ago
How much heat is required to raise the temperature of 81.0 g of water from its melting point to its boiling point?
Dovator [93]

Answer:

Specific heat of water = 33.89 KJ

Explanation:

Given:

mass of water = 81 gram

Initial temperature = 0°C

Final temperature = 100°C

Specific heat of water = 4.184

Find:

Required heat Q

Computation:

Q = Mass x Specific heat of water x (Final temperature - Initial temperature)

Q = (81)(4.184)(100-0)

Q = 33,890.4

Specific heat of water = 33.89 KJ

6 0
3 years ago
Other questions:
  • The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abb
    5·1 answer
  • How many atoms are in Na2CrO4
    14·1 answer
  • Use the investigation set up below to write a conclusion statement for what is happening to the liquid. Choose the best answer.
    12·1 answer
  • Most cave formations are created from _________ deposits.
    5·2 answers
  • Take zinc-73 through beta decay ; write a complete equation
    15·1 answer
  • Uranium-232 has a half-life of 68.8 years. After 344.0 years, how much uranium-232 will remain from a 375.0-g sample?
    7·1 answer
  • Dating of rock layers which layer is the youngest f,A,s,h,b,d,c,e
    10·1 answer
  • Na2O +<br> H20<br> NaOH<br> yeah
    11·2 answers
  • If you walked 20 m, took a book from a table, and walked back to your seat, what are the distance you traveled and your displace
    8·2 answers
  • 0/10<br> The molar mass of iron
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!