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Alla [95]
2 years ago
8

Necesito la respuesta

Chemistry
1 answer:
aleksandrvk [35]2 years ago
4 0

Answer:

la tercera caja (3rd box)

Explanation:

usa desmos para obtener más ayuda

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Predict whether each of the following substances would be more soluble in water (polar solvent) or in a hydrocarbon such as hept
vlada-n [284]

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Vegetable oil will dissolve in heptane

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Potassium Bromide will dissolve in water

Explanation:

In chemistry, like dissolves like. This implies that polar substances will dissolve in polar solvents and nonpolar substances will dissolve in nonpolar solvents. This is so because, dissolution of a solute in a solvent involves adequate intermolecular interaction between solute and solvent which isn't possible between a polar and a nonpolar substance.

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Which physical property refers to the temperature at which substance in a solid state transforms to a liquid state?
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How many grams of solid Ca(OH)2 (74.1 g/mol) are required to make 500 ml of a 3 M solution?
mars1129 [50]

Answer:

111.15 g are required to prepare 500 ml of a 3 M solution

Explanation:

In a 3 M solution of Ca(OH)₂ there are 3 moles of Ca(OH)₂ per liter solution. In 500 ml of this solution, there will be (3 mol/2) 1.5 mol Ca(OH)₂.

Since 1 mol of Ca(OH)₂ has a mass of 74.1 g, 1.5 mol will have a mass of

(1.5 mol Ca(OH)₂ *(74.1 g / 1 mol)) 111.15 g. This mass of Ca(OH)₂ is required to prepare the 500 ml 3 M solution.

3 0
3 years ago
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