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Aleks [24]
3 years ago
12

HELP WILL GIVE CROWN

Chemistry
2 answers:
Inessa [10]3 years ago
5 0

Answer: I think it is either A or C

Explanation: I'm not an expert, but I am pretty sure either one of those is the answer

professor190 [17]3 years ago
4 0

Answer:

A. only E

Explanation:

Displacement is the shortest distance from start to finish. And E is the shortest distance from both start to finish. Do not be confused about D because it is not at the start.

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3 0
4 years ago
Read 2 more answers
If the [H+] = 0.01 M, what is the pH of the solution, and is the solution a strong acid, weak acid, strong base, or weak base?
lana66690 [7]

Answer:

2, strong acid

Explanation:

Data obtained from the question. This includes:

[H+] = 0.01 M

pH =?

pH of a solution can be obtained by using the following formula:

pH = –Log [H+]

pH = –Log 0.01

pH = 2

The pH of a solution ranging between 0 and 6 is declared to be an acid solution. The smaller the pH value, the stronger the acid.

Since the pH of the above solution is 2, it means the solution is a strong acid.

5 0
3 years ago
chemist must prepare of hydrobromic acid solution with a pH of at . He will do this in three steps: Fill a volumetric flask abou
Mademuasel [1]

Answer:

32 mL

Explanation:

<em>A chemist must prepare 500.0mL of hydrobromic acid solution with a pH of 0.50 at 25°C. He will do this in three steps: Fill a 500.0mL volumetric flask about halfway with distilled water. Measure out a small volume of concentrated (5.0M) stock hydrobromic acid solution and add it to the flask. Fill the flask to the mark with distilled water. Calculate the volume of concentrated hydrobromic acid that the chemist must measure out in the second step. Round your answer to 2 significant digits.</em>

<em />

Step 1: Calculate [H⁺] of the dilute solution

pH = -log [H⁺]

[H⁺] = antilog -pH = antilog -0.50 = 0.32 M

Step 2: Calculate [HBr] of the dilute solution

HBr is a strong acid that dissociates according to the following equation.

HBr ⇒ H⁺ + Br⁻

The molar ratio of HBr to H⁺ is 1:1. The concentration of HBr is 1/1 × 0.32 M  = 0.32 M.

Step 3: Calculate the volume of the concentrated HBr solution

We will use the dilution rule.

C₁ × V₁ = C₂ × V₂

V₁ = C₂ × V₂ / C₁

V₁ = 0.32 M × 500.0 mL / 5.0 M

V₁ = 32 mL

8 0
4 years ago
Does an object appear larger when the observer is closer or farther away from it?
ExtremeBDS [4]
Place your hand in front of your face. Now push it away from your body. Which looked bigger?
3 0
3 years ago
A 0.500-l sample of gas is at a pressure of 625 mm hg. what must the pressure be (in atm), at constant temperature, if the volum
Gemiola [76]
Since temperature is held constant; Boyle's law can be expressed as: P 1 * V 1 = P 2 * V 2  
Where P1 = 625 and V1 = 0.5 L 
V2 = 925 * 10^(-3) = 0.925 L and P2 = ? 
So P2 = (P1 * V1)/P2 
P2 = (625 * 0.5)/0.925 
P2 = 337.83 my hg
3 0
3 years ago
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