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Molodets [167]
3 years ago
15

Sulfurous Acid, H2SO3, is a diprotic acid, with the following acid dissociation constants: Ka1 = 1.4 × 10-2 Ka2 = 6.7 × 10-8 Wha

t is the Kb for SO32- at 25ºC? Group of answer choices 9.4 × 10-10 1.5 × 10-7 6.7 × 10-8 7.2 × 10-13
Chemistry
2 answers:
Colt1911 [192]3 years ago
3 0

Answer:

Kb =  7.1 x 10⁻¹³

Explanation:

Ka x Kb = Kw => Kb = 1 x 10⁻¹⁴/1.4 x 10⁻² = 7.1 x 10⁻¹³

Anastaziya [24]3 years ago
3 0

Answer:

Kb = 7.1 x 10⁻¹³

Explanation:

Ka x Kb = Kw => Kb = 1 x 10⁻¹⁴/1.4 x 10⁻² = 7.1 x 10⁻¹³

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How many moles of glucose molecules?​
muminat

1 molecule of glucose contains 6 atoms of C, 12 atoms of H , and 6 atoms of 0.1 mole of glucose contains 6 moles of C atoms , 12 moles of H atoms , and 6 moles of O atoms .

6 0
3 years ago
I WILL GIVE BRAINLIEST PLEASE DO IT RIGHT!!! 1) Using the data below, create two simple line graphs on a separate sheet of paper
VLD [36.1K]

Answer:Score” scatter plot shows an example of a positive relationship—as one variable increases, so does the other. The points in this type of scatter plot tend to go “uphill” from left to right

Explanation:Score” scatter plot shows an example of a positive relationship—as one variable increases, so does the other. The points in this type of scatter plot tend to go “uphill” from left to right

3 0
3 years ago
The 488 nm laser is shine on a lithium metal whose work function is 2.9 eV will you be able to see any photoelectrons? if yes wh
nalin [4]

Answer:

There will not be any ejection of photoelectrons

Explanation:

Energy of the photon= hc/λ

Where;

h= Plank's constant

c= speed of light

λ= wavelength of the incident photon

E= 6.6×10^-34 × 3 ×10^8/488 × 10^-9

E= 4.1 ×10^-19 J

Work function of the metal (Wo)= 2.9 eV × 1.6 × 10^-19 = 4.64 × 10^-19 J

There can only be ejected photoelectrons when E>Wo but in this case, E<Wo hence there will not be any ejection of photoelectrons.

3 0
3 years ago
What is its molecular formula?​
uysha [10]

Answer:

C₆H₈O₆

Explanation:

The molecular formula of given compound is C₆H₈O₆. Because there are six carbon, six oxygen and eight hydrogen atom present in this compound.

The molecular weight of following compound is,

C₆H₈O₆

C = 12 amu

H = 1 amu

O = 16 amu

C₆H₈O₆ = 12×6 + 1×8 + 16×6

C₆H₈O₆ = 72 +8 + 96

C₆H₈O₆ = 176 g/mol

7 0
3 years ago
Which of the following is NOT a property of an acid?
MrMuchimi

the correct answer is feels slippery

5 0
3 years ago
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