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svetoff [14.1K]
2 years ago
9

Iodine is an elemnt, but is Iodide an element or it is a compound?

Chemistry
2 answers:
juin [17]2 years ago
5 0

Answer: element

Explanation:

It only has one type of atom making it a element

lys-0071 [83]2 years ago
4 0
Element i think since it only has one atom around it
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drek231 [11]
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4 0
3 years ago
Calculate the osmotic pressure of a solution prepared by dissolving 65.0 g of Na2SO4 in enough water to make 500 mL of solution
Arte-miy333 [17]

Answer:

66.0 atm

Explanation:

We can calculate the osmotic pressure (π) using the following expression.

\pi = i \times M \times R \times T

where,

  • i: van 't Hoff index
  • M: molarity
  • R: ideal gas constant
  • T: absolute temperature

Step 1: Calculate i

Sodium sulfate completely dissociates according to the following equation.

Na₂SO₄ ⇒ 2 Na⁺ + SO₄²⁻

Since it produces 3 ions, i = 3.

Step 2: Calculate M

We can calculate the molarity of Na₂SO₄ using the following expression.

M = \frac{mass\ of\ solute }{molar\ mass\ of\ solute\ \times liters\ of\ solution}  = \frac{65.0g}{142.04g/mol \times 0.500L} =0.915M

Step 3: Calculate T

We will use the following expression.

K = °C + 273.15

K = 20°C + 273.15 = 293 K

Step 4: Calculate π

\pi = 3 \times 0.915M \times \frac{0.08206atm.L}{mol.K}  \times 293K =66.0 atm

7 0
3 years ago
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