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Studentka2010 [4]
3 years ago
15

What problems might happen if an unnecessary hurricane warning was issues

Chemistry
1 answer:
deff fn [24]3 years ago
4 0
People would rush to the store to buy supplies and there might not be enough for the "last minute noticed" people
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For the diprotic weak acid h2a, ka1 = 3.2 × 10-6 and ka2 = 6.1 × 10-9. what is the ph of a 0.0650 m solution of h2a? what are th
Stolb23 [73]
Given:

Diprotic weak acid H2A:
 
Ka1 = 3.2 x 10^-6
Ka2 = 6.1 x 10^-9. 
Concentration = 0.0650 m 

Balanced chemical equation:

H2A ===> 2H+  + A2- 
0.0650       0        0
-x                2x       x
------------------------------
0.065 - x     2x      x

ka1 = 3.2 x 10^-6 = [2x]^2 * [x] / (0.065 - x)

solve for x and determine the concentration at equilibrium. 


5 0
3 years ago
Compared with gases, liquids: A. have stronger intermolecular attractions. B. have more space between their particles. C. are mu
Fiesta28 [93]
A. have stronger intermolecular attractions.
6 0
3 years ago
If 0.35 moles of kcl was dissolved in enough water to make 0.2 L of solution, what is molarity?
Mars2501 [29]

Answer:

1.75M

Explanation:

molarity = number of moles of solute/ number of L of solution =

=0.35 mol/0.2L = 1.75 mol/L = 1.75 M

8 0
3 years ago
At STP , how many molecules of nitrogen gas are in 2.24 L?
Oksanka [162]

Explanation:

At STP ,2.24 L contain 0.1 mole of N²

<h2>So,No. of molecules of N2 = 6.022*10²²</h2>
7 0
3 years ago
___________________is the rate that an object moves in a certain direction. Question 3 options:
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Answer: Velocity

Explanation:

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