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sergey [27]
3 years ago
14

What is the melting point of water?

Chemistry
1 answer:
o-na [289]3 years ago
6 0
 the melting point of water is 32 degrees Fahrenheit , 0 degrees Celsius. <span />
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This planet is second from the Sun. It is named after the Roman god of beauty.
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Mercury bc it is melting and getting closer
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Convert 0.859 mg to cg.<br> Help me plz :(
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Answer:

0.0859

Explanation:

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When 2.69 g 2.69 g of a nonelectrolyte solute is dissolved in water to make 345 mL 345 mL of solution at 26 °C, 26 °C, the solut
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Answer:

The molar concentration of this solution is 0.0463 mol/L

Explanation:

Step 1 : Data given

Mass of a nonelectrolyte solute = 2.69 grams

Volume of water = 345 mL = 0.345 L

Temperature = 26.0°CC = 273 + 26 = 299 K

The osmotic pressure = 863 torr

⇒ 863torr /760 = 1.13553 atm

Step 2: Calculate the molar concentration of this solution

Π = i*M*R*T

⇒with Π = the osmotic pressure = 1.13553 atm

⇒with i = the van't Hoff factor of the nonelectrolyte solute = 1

⇒with M = the molar concentration = TO BE DETERMINED

⇒with R = the gas constant = 0.08206 L*atm/mol*K

⇒with T = the temperature = 299 K

1.13553 atm = 1 * M * 0.08206 L*atm/mol*K * 299 K

M = 1.13553 / (0.08206*299)

M = 0.0463 mol/L

The molar concentration of this solution is 0.0463 mol/L

5 0
2 years ago
What is the formula for the ionic compound formed between sodium and oxygen?
CaHeK987 [17]

Answer:The formula for the compound formed between sodium and oxygen will be Na2O; a ratio of 2 Na atoms for each O atom.

Explanation:

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An acid has an acid dissociation constant of 2.8 10–9. What is the base dissociation constant of its conjugate base?
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The answer is 3.6 x 10^-6
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