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Paha777 [63]
3 years ago
7

How many moles of AlCl3 are produced

Chemistry
2 answers:
Leto [7]3 years ago
6 0

The correct answer is 124 ✌

sveta [45]3 years ago
6 0

Answer:

124

Explanation:

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How does lanthanide contraction influence the density of period 6 transition element​
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3. Find the wavelength if the energy of light is 3.36x10 to the -17th power J.
telo118 [61]
<h3>Answer:</h3>

1.52 × 10⁻¹⁶ nm

<h3>Explanation:</h3>

We are given,

Energy = 3.36 × 10⁻¹⁷ Joules

We are required to find the wavelength of light

We are going to use,

The formula, E = hλ/c

Where E is the energy, λ is the wavelength, h is the plank's constant and c is the speed of light.

h = 6.626 × 10^-34 J-s

c = 2.998 × 10^8 m/s

Working

From the formula;

Wavelength=\frac{Ec}{h}

 = (3.36 × 10⁻¹⁷ J)(2.998 × 10^8 m/s) ÷ 6.626 × 10^-34 J-s

= 1.52 × 10⁻²⁵ meters

Therefore, the wavelength in m is 1.52 × 10⁻²⁵ m

Conversion

We need to convert m to nm

Conversion factor is 10⁹

Therefore;

1.52 × 10⁻²⁵ m to nm

will be; 1.52 × 10⁻²⁵ m × 10⁹

  = 1.52 × 10⁻¹⁶ nm

Thus, the wavelength in nm is 1.52 × 10⁻¹⁶ nm

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Calculate the solubility of Hg2Cl2 given that its ksp is 1.1*10^-18?
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At 25°C, the solubility product of Hg2Cl2 in water is 3.2
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