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VARVARA [1.3K]
2 years ago
15

Suppose you carry out a titration involving 2.50 molar NaOH and an unknown concentration of HBr. To bring the reaction to its en

d point, you add 49.2 milliliters of NaOH to 35.0 milliliters of HBr.
What is the concentration of the HBr solution?

A. 0.711 M
B. 1.41 M
C. 1.78 M
D. 3.51 M
Chemistry
1 answer:
givi [52]2 years ago
7 0

Answer:

B

Explanation:

Brainly Patrol ima stop you here

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Explanation:

HBr

3 0
2 years ago
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A 2.3 kg object has 15 ) of kinetic energy. Calculate its speed.
chubhunter [2.5K]

Answer:

<h3>The answer is option D</h3>

Explanation:

To find the speed given the kinetic energy and mass we use the formula

v =  \sqrt{ \frac{2KE}{m} }  \\

where

m is the mass

v is the speed

From the question

KE = 15 J

m = 2.3 kg

We have

v =  \sqrt{ \frac{2 \times 15}{2.3} }  =  \sqrt{ \frac{30}{2.3} }  \\  = 3.61157559...

We have the final answer as

<h3>3.6 m/s</h3>

Hope this helps you

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3 years ago
How many atoms does 32 grams of sulfur contain?
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