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
stealth61 [152]
3 years ago
9

Calculate the molarity of a solution with 233.772g sodium chloride dissolved in 2,000mL of water

Chemistry
1 answer:
LekaFEV [45]3 years ago
3 0

Answer:

The molarity is 2M

Explanation:

First , we calculate the weight of 1 mol of NaCl:

Weight 1mol NaCl= Weight Na + Weight Cl= 23 g+ 35, 5 g= 58, 5 g/mol

58,5 g---1 mol NaCl

233,772 g--------x= (233,772 g x1 mol NaCl)/58,5 g= 4 mol NaCl

<em>A solution molar--> moles of solute in 1 L of solution:</em>

2 L-----4 mol NaCl

1L----x0( 1L x4mol NaCl)/4L =2moles NaCl---> 2 M

You might be interested in
Significant digits are the number of digits that reflect the precision of a measurement or number.
Delvig [45]

Answer:

True

Explanation:

Significant digits are numbers that helps to present the precision of measurements calculations.

Numbers that do not contribute to the precision of a reading should not be counted as significant.

There are rules of assigning significant numbers:

  • Leading or trailing zeros are insignificant and should only be counted as a place holder.
  • All non-zero digits are significant
  • Zeroes between non-zero digits are significant.
  • Leading zeros in a decimal are significant before the number.
  • All the numbers in a scientific notation are significant.
5 0
3 years ago
What happens when you add acetic acid vinegar and sodium bicarbonate baking soda nahco​
Sophie [7]

Explanation:

oh shi sorry I wish I could help but I'm stupid

8 0
3 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
Which process in the light-dependent reactions results in the release of hydrogen ions, electrons, and oxygen?
tino4ka555 [31]
The answer is actually Water Splitting! Hope this works:D
6 0
3 years ago
Read 2 more answers
Can someone plzzz helppp meeee!!!!!!
BigorU [14]

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wtjfavyw

8 0
2 years ago
Other questions:
  • True or false the strength and concentration of an acid or base describe the same property.
    15·2 answers
  • If you had a beaker full of black powder which of the following could you have?
    7·2 answers
  • Discuss the significance of assigning an atomic mass of exactly 12 amu to the carbon-12 isotope.
    5·1 answer
  • Changing subscripts is one of the steps of balancing a chemical equation.<br> True or False
    15·2 answers
  • As the first five elements in Group 15 are considered in order of increasing atomic number, first ionization energy increases, t
    7·1 answer
  • 34. According to Bohr's theory, an electron's path around the nucleus defines its
    10·1 answer
  • Write balanced chemical equations for the following reactions:
    7·2 answers
  • What is the pH of a 0.235 M Ba(OH)2 solution?
    8·1 answer
  • NH3 1. Lewis Structure 2. Perspective drawing 3. Number of atoms bonded to central atom 4. Number of non-bonding electron pairs
    13·1 answer
  • A reaction that occurs in the internal combustion engine isN₂(g) + O₂(g) ⇄ 2NO(g) (a) Determine ΔH° and ΔS° for the reaction at
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!