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
AVprozaik [17]
3 years ago
10

Calculate the molar concentration of the Cl⁻ ions in 0.73 M MgCl2(aq).

Chemistry
1 answer:
Marta_Voda [28]3 years ago
7 0
MgCl2(aq) is an ionic compound which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of MgCl2 that dissolves.
MgCl2(s) --> Mg+(aq) + 2 Cl⁻(aq)
            [Cl⁻] = 0.73 mol MgCl2/1L × 2 mol Cl⁻ / 1 mol MgCl2 = 1.5 M
The answer to this question is [Cl⁻] = 1.5 M
You might be interested in
Pls help me <br> brainliest, rattings etc<br> its 2 questions and I am very confused!<br> 8 pts!
Serjik [45]
Ouestion no 10 answer is first and 11 is 3
6 0
3 years ago
Read 2 more answers
Which is the MOST accurate description of diffusion of materials through the cell membrane in order to maintain homeostasis?
krok68 [10]
Hello there! 

I believe "<span>b. Nutrients move from an area of lower concentration to an area of higher concentration." is correct!

Have a cool day! -Wajiha</span>
7 0
3 years ago
Read 2 more answers
3. Methyl acetate is hydrolyzed at 25 oC in acidic environment. Aliquots of equal volume are removed and titrated with NaOH solu
avanturin [10]

Solution :

Time (sec)       Volume of NaOH (mL)

339                           26.23

1242                         27.80

2745                        29.70

4546                         3.81

$\infty$                               39.81

Now the example of the first order kinetics w.r.t volumetric analysis is :

$k=\frac{2.303}{t} \log \left(\frac{v_{\infty}-v_0}{v_{\infty}- v_t}\right)$

Here, $v_{\infty}= \text{ volume at }\infty = 39.81$

$v_{t}= \text{ volume at time 't' } = 27.80$

$v_0$ = volume at time 0 = 0

Since the interval is not constant, we take the time interval as

$=\frac{903+1503+1801}{3}$

$=\frac{4207}{3}$

= 1402.3333

≈  1402 seconds

$k=\frac{2.303}{1402} \log \left(\frac{39.81-0}{39.81-27.80}\right)$

  $=(0.001643) \log \left(\frac{39.81}{10.01}\right)$

  = 0.001643 x 0.52045

  = 0.00082

  $= 8.55 \times 10^{-4} \ sec^{-1}$

Therefore, the first order rate constant is k $= 8.55 \times 10^{-4} \ sec^{-1}$.

5 0
2 years ago
Beth’s hygrometer is reading a temperature of 30°C and a relative humidity of 65%. The humidity in the air is how many grams/cub
emmasim [6.3K]
This is asking for the absolute humidity. So if the relative humidity is 65 % and the air temperature is 30 then we need to have in mind the barometric pressure which will be 760. The humidity in the air will be 0.020 kg/m3. In order to know this we calculate it eith the mass of water vapour in a unit volume of air. This is a measure of the actual water vapour content of the air. the for mula would go like this: AH = Mv / V. 
5 0
2 years ago
Which of the four models represents a solid
ICE Princess25 [194]

Answer:

is there an image

Explanation:

6 0
2 years ago
Other questions:
  • Pb(BrO3)2 is a ionic compound,covalent compound, or Acid
    12·1 answer
  • Enter a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous potassium bromide to form solid lead(II)
    10·1 answer
  • The light reactions stage:
    11·2 answers
  • What does X represent for this transmutation?
    12·1 answer
  • Nitric acid reacts with insoluble copper(II) oxide to form soluble copper(II) nitrate, Cu(NO3)2, a compound that has been used t
    14·1 answer
  • Convert 30°C into kelvin
    7·1 answer
  • Which of the following bonds is polar?<br> a) F-F<br> b) O-H<br> c) O-O<br> d) H-H
    12·1 answer
  • In what order should you mix an acid and a base? Which would you pour into which? Does it matter?
    6·2 answers
  • How did organic compounds get their name and how is the word related to its meaning?
    11·1 answer
  • What is the mass of insoluble calcium phosphate produced from .555 grams of calcium chloride​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!