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MissTica
3 years ago
15

A change in which property of light will have no effect on weather or not the photoelectric effect occurs

Chemistry
1 answer:
lubasha [3.4K]3 years ago
7 0
It's C. intensity. If it's not correct, please tell me.
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He molecular formula mass of this compound is 180 amu . what are the subscripts in the actual molecular formula?
mezya [45]
I can't actually answer this one if the empirical formula is not given. Luckily, I've found a similar problem from another website. The problem is shown in the picture attached. It shows that the empirical formula is CH₂O. Let's calculate the molar mass of the empirical formula.

Molar mass of E.F = 12 + 2(1) + 16 = 30 g/mol

Then, let's divide this to the molar mass of the molecular formula.
Molar mass of M.F/Molar mass of E.F = 180/30 = 6

Therefore, let's multiply 6 to each subscript in the empirical formula to determine the actual molecular formula.
<em>Actual molecular formula = C₆H₁₂O₆</em>

5 0
3 years ago
Please give me solved answer pic its really importen ​
inn [45]
Where’s the picture?
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3 years ago
Place the elements below in order of decreasing ionization energy. Aluminum(Al) Chlorine(Cl) Magnesium (Mg) Sulfur(S)
arlik [135]
Chlorine
Magnesium
Aluminum
Sulfur
7 0
3 years ago
When do scientists use models i will mark best one brainlest
Nuetrik [128]
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4 0
3 years ago
Read 2 more answers
For the following H30 concentration list the pH and the OH concentration in
Alenkinab [10]

Answer:

[H3O+] = 1.4*10^-5 M

pH = 4.85

[OH-] = 7.08*10^-10

Explanation:

As pH is a measure of hydronium H3O concentration, simply substitute [H3O+] into the following equation:
pH = -log[H+]
pH = -log(1.4*10^-5)
pH = 4.853871...
Round to 2-3 sig figs due to only being given data with 2 significant figures
pH = 4.85

One method to get to [OH-] is to turn pH into pOH and then use inverse functions to get [OH-]
pH + pOH = 14
4.85 + pOH = 14
pOH = 9.15

Then to get [OH-] from pOH:
pOH = -log[OH-]
9.15 = -log[OH-]
-9.15 = log[OH-]
10^(-9.15) = [OH-]
7.07945784 * 10^-10 = [OH]
Round based on given significant figures again:
7.08*10^-10 = [OH-]

(Feel free to add any questions & I'll be sure to reply if clarification is needed)

6 0
2 years ago
Read 2 more answers
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