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asambeis [7]
3 years ago
8

Whoever answeres all the questions will get brainliest question

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

1. A

2. C

3. B

4. D

5. D

6. B

Explanation:

I'm not quiet sure on 5 but I'm pretty sure its correct

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Water supplies are often treated with chlorine as one of the processing steps in treating wastewater. Estimate the liquid diffus
jekas [21]

Answer:

⇒D_AB= 1.21×10^(-9)

Explanation:

Wike chang  equation is given as:

D_{AB}= \frac{117.3\times10^{-18}\times\(\phi\times M_B)^{0.5}\times T}{\mu\times\nu^{0.6}}

Where

D_AB= diffusivity of chlorine in water

Φ= 2.26 for water as solvent

ν= 0.0484 for chlorine as solute

M_B = Molecular weight of water

τ= temperature=289 K

μ= viscosity = 1.1×10^{-3}

Now putting these values in the above equation we get

D_{AB}= \frac{117.3\times10^{-18}\times\(\2.26\times18)^{0.5}\times289}{\1.1\times10^{-3}\times\0.0484^{0.6}}

⇒D_AB= 1.21×10^(-9)

7 0
3 years ago
Read 2 more answers
The teacher in item 10 also needs to order plastic tubing. If each of the 60 students need 750 mm of tubing, what length of tubi
Alex777 [14]

45 m. If each student needs 750 mm of tubing, the teacher should order 45 m of tubing.

a) Find the <em>length in millimetres</em>

Length = 60 students x (750 mm tubing/1 student) = 45 000 mm tubing

b) Convert <em>millimetres to metres </em>

Length = 45 000 mm tubing x (1 m tubing/1000 mm tubing) = 45 m tubing

6 0
3 years ago
If 24 grams of aluminum react with 30 grams of chlorine, how much aluminum chloride will be produced
Rina8888 [55]

Answer:

its 7 i do believe

Explanation:

8 0
3 years ago
Why are soluble ionic compounds such as mgcl2 electrolytes? choose one: the compound contains a metal, and metals are conductors
lawyer [7]
<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.
4 0
3 years ago
22.5 mL of an HNO3 solution were titrated with 31.27 mL of a .167 M NaOH solution to reach the equivalence point. What is the mo
natulia [17]

Answer:

M₂ = 0.23 M

Explanation:

Given data:

Volume of HNO₃ = 22.5 mL

Volume of NaOH = 31.27 mL

Molarity of NaOH = 0.167 M

Molarity of HNO₃ = ?

Solution:

M₁ = Molarity of NaOH

V₁ = Volume of NaOH

M₂ = Molarity of HNO₃

V₂ = Volume of HNO₃

M₁V₁ = M₂V₂

0.167 M × 31.27 mL = M₂ × 22.5 mL

5.2 M. mL = M₂ × 22.5 mL

M₂ =  5.2 M. mL /22.5 mL

M₂ = 0.23 M

3 0
4 years ago
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