Aria

If it takes 20 mL of 0.35 M H₂SO₄ to neutralize 50 mL of NaOH solution, what is the concentration of the NaOH solution?

a. 0.21 M

b. 0.07 M

c. 0.14 M

d. 0.28 M

What is the molarity of HCl if 39 mL of the solution is titrated with 72.1 mL of 0.543 M NaOH?

a. 0.33 M

b. 0.29 M

c. 1.00 M

d. 0.52 M

What is the pH when the [H⁺] ion concentration is 1 x 10⁻⁷M?

a. 1

b. 7

c. 4

d. 14

Calculate the [H⁺] ion concentration in a solution which shows a pH of 11.7.

a. 2.3 M

b. 11.7 M

c. 5.0 x 10⁻³ M

d. 2.0 x 10⁻¹² M

My pug stinks pretty bad and I give him a shower once every week because of it. I don't know how often you need to shower your pup but I don't want to do it to much because he has sensitive skin and it gets irritated pretty quick. I have a shampoo for him that works good the first day but then the next he is already starting to smell again. He isn't an outside dog so I don't know why he smells so much in the first place. please help!

How many moles of potassium sulfate are in 500.0 mL of 0.300 M potassium sulfate?

a. 0.05 mol

b. 0.25 mol

c. 0.10 mol

d. 0.15 mol

If 300 g of Kool-Aid (sucrose and dye) was added to 6 M Kool-Aid solution bringing its molarity to 8 M the color of the solution would:

a. Get darker

b. Get lighter

c. Stay the same

What volume of 0.200 M ethanol solution contains 0.45 moles of ethanol? (Ethanol: C₂H₆O)

a. 2.25 Lb. 0.09 Lc. 0.45 Ld. 22.5 L

What is the molarity of a solution made from 0.250 mol sodium hydroxide in 650.0 mL of solution?

a. 0.244 M

b. 0.572 M

c. 0.385 M

d. 0.721 M

A circle has a diameter of 396mm and an arc length of 88𝜋 mm.

What is the angle measure of the arc?

A rock is dropped from a building. The equation below gives the distance, d, the rock travels in t seconds.

d=t2+2t

How long does it take the rock to travel 99 feet?

Margaret has $632 in her savings account at the beginning of the year. She withdraws $24 every week for her expenses. If she wants to maintain at least $200 in her savings account, for how many weeks can Margaret withdraw the money? Enter your answer in the box below.

If 200 mL of 0.25M sodium chloride solution is mixed with 50 mL of 0.4 M sodium chloride solution what would the concentration of the resulting solution be?