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vlabodo [156]
3 years ago
9

Why are soluble ionic compounds such as mgcl2 electrolytes? choose one: the compound contains a metal, and metals are conductors

. the ions dissociate from each other in solution and are free to move independently. electrons are released into solution when the compound dissolves. individual molecules of the compound form ions in water?
Chemistry
1 answer:
lawyer [7]3 years ago
4 0
<h3><u>Answer;</u></h3>

the ions dissociate from each other in solution and are free to move independently

<h3><u>Explanation;</u></h3>
  • <em><u>All soluble ionic compounds are strong electrolytes. They conduct very well because they provide a plentiful supply of ions in solution. That is;  they mostly break up into ions as they dissolve in water</u></em>.
  • An electrolyte solution conducts electricity because of the movement of ions in the solution.
  • Ionic compounds have ions that are electrically charged to conduct electricity in liquid state or in aqueous solutions.
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A cylindrical container of garlic powder has a height of 9 cm and 1.2 times the radius of another cylindrical container of the s
andreev551 [17]
To solve this you need to find the radius of the bigger cylinder so you have to solve the equation 36π=r^{2}π(9). When you solve it you end up with a radius of 2 in which you multiply by 1.2 which gives you the radius of the new cylinder which is 2.4. With the new radius you simply find the volume of the bigger cylinder which is 51.94πcm^{3}.
5 0
3 years ago
Diluting concentrated 1.74M acetic acid to prepare 200 ml of 8M stick solution. What volume of concentrated acid must be used
TiliK225 [7]
<h3>Answer:</h3>

43.5 mL

<h3>Explanation:</h3>

We are given;

  • Molarity of dilute acetic acid is 1.74 M
  • Volume of the solution that needs to be prepared is 200 mL
  • Molarity of the stock solution 8 M

We are required to determine the volume of acid that must be used.

  • We need to know the dilution formula;
  • According to the dilution equation;

M1V1 = M2V2

Rearranging the formula;

V1 = M2V2 ÷ M1

   = (1.74 M × 200 mL) ÷ 8 M

   = 43.5 mL

Therefore, the volume of the concentrated acid that must be added is 43.5 mL

6 0
4 years ago
How are the products of the endoplasmic reticulum shipped to the golgi?
enot [183]
The ribosomes are the ones delivering the products of the endoplasmic reticulum
8 0
3 years ago
If a 100 kg mol mixture of n-hexane and n-octane containing 50 mole% n-hexane is to be separated by flash distillation @ 1 atm t
Jet001 [13]

Answer:

(a) x_1=0.34\\x_2=0.66\\y_1=0.74\\y_2=0.24

(b) 95.24^0C

Explanation:

Hello,

The Rachford-Rice equation should be used in this case:

\frac{z_1(K_1-1)}{1+V/F(K_1-1)} +\frac{z_2(K_2-1)}{1+V/F(K_2-1)} =0\\\frac{0.5(\frac{P_{1,sat}}{P}-1)}{1+V/F(\frac{P_{1,sat}}{P}-1)} +\frac{z_2(\frac{P_{2,sat}}{P}-1)}{1+V/F(\frac{P_{2,sat}}{P}-1)} =0

The distribution coefficients could be approximated via Raoult's law and the Antoine equation for the vapor pressure:

K_i=\frac{P_{i,sat}}{P}=\frac{10^{A-\frac{B}{C+T} }}{P}

For n-hexane: A=6,9895, B=1216,92 and C=227,451

For n-octane: A=7,14462, B=1498,96 and C=225,874

*Those values and the Antoine law are used in °C and mmHg.

Replacing each value in the Rachford-Rice equation and solving for T, one gets the flash drum temperature as 95.24°C (attached picture), thus, the compositions in both the liquid and the vapor phases are:

x_1=\frac{z_1}{1+V/F(K_1-1)}=\frac{0.5}{1+0.4*(2.175-1)} =0.34\\x_2=1-x_1=0.66\\y1=K_1*x_1=2.175*0.34=0.74\\y_2=1-y_1=0.24

Best regards.

6 0
3 years ago
What is a reactivity ceris
exis [7]

Answer:

The reactivity series of metals is a chart listing metals in order of decreasing reactivity. In general, the more reactive a metal is: the more vigorously it reacts with other substances. the more easily it loses electrons to form positive ions (cations)

3 0
3 years ago
Read 2 more answers
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