Sun light and chemicals create _______ smog

Answers

Answer 1

Answer: sun light and chemical create photochemical smog

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Which of these is a chemical property?A.boiling point
B.Flammability
C.Density
D.Solubility

Answers

Yes, refer to the previous answer.

(B.) Flammability of course

47.0 ml of an HBr solution were rotated with 37.5 ml of a 0.215 m lioh solution to reach the equivalent point. What is the molarity of the hbr solution

Answers

Answer:

0.172 mol·L⁻¹

Step-by-step explanation:

1. Write the chemical equation for the reaction.

HBr + LiOH ⟶ LiBr + H₂O

===============

2. Calculate the moles of LiOH

c = n/V Multiply each side by V

n = Vc

V = 0.0375 L

c = 0.215 mol·L⁻¹

Moles of LiOH = 0.0375× 0.215

Moles of LiOH = 8.062 × 10⁻³ mol LiOH

===============

3. Calculate the moles of HBr

1 mol HBr ≡ 1 mol LiOH

Moles of HBr = 8.062 × 10⁻³× 1/1

Moles of HBr = 8.062 × 10⁻³ mol HBr

===============

4. Calculate the molar concentration of the HBr

V = 47.0 mL = 0.0470 L

c = 8.062 × 10⁻³/0.0470

c = 0.172 mol·L⁻¹

The molarity of the HBr solution is 0,172 M.

The neutralization reaction between LiOH and HBr is the following:

HBr(aq) + LiOH(aq) → LiBr(aq) + H₂O(l)

How are electrical currents and magnetic fields related

Answers

Electric current produces a magnetic field. This magnetic field can be visualized as a pattern of circular field lines surrounding a wire.

A 50°C solution has a pH of 3.30. At this temperature, Kw = 5.48 x 10 9. What is the pOH of the solution?

Answers

Answer:

9.93

Explanation:

Your value for Kw is incorrect. The correct value is 5.48 × 10^-14.

pH + pOH = pKw

3.30 + pOH = -log(5.84 × 10^-14) = 13.23

pOH = 13.23 - 3.30 = 9.93

The pOH of the solution is 9.93.

The pOH of the solution is 10 .

Given that, the pH of the solution is 3.30, we also know that;

pH = - log[H^+]

Hence;

[H^+] = Antilog (-3.3)

[H^+] = 5.0 × 10^-4 M

But;

Kw = [H^+] [OH^-]

[OH^-] = Kw/[H^+]

The accurate value of Kw is 5.48 × 10^-14 not 5.48 x 10 9

[OH^-] = 5.48 x 10^-14/ 5.0 × 10^-4

[OH^-] = 1.1 x 10^-10 M

pOH = - log[1.1 x 10^-10 M]

pOH = 10

Learn more: brainly.com/question/1079292

Most covalent compounds are very ______ electrolytes in solutions. A. Strong
B. Weak
C. Acidic
D. Flammable

Answers

i think the answer is A but im not 100% sure.

What is the kinetic energy of the skier at a height of 60 meters above ground? (3 points)a.20,000 units, because total energy remains unchanged

b. 80,000 units, because total energy remains unchanged

c. 20,000 units, because total energy of the skier decreases

d. 80,000 units, because total energy of the skier decreases