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Lelechka [254]
3 years ago
9

Questions below: I've already answered 3.

Chemistry
1 answer:
kati45 [8]3 years ago
3 0
1.2
2.3
3.12
4.Fe2+
5.monoatomic
7.polyatomic
8.2
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How much energy is required to melt 2kg of ice at 0°C?
Ann [662]

Answer  0 °C + Heat required to convert 2 kg of water at 0 °C to 2 kg of water at 20 °C. Therefore, to melt 2 kg of ice 835.48 KJ of heat is required.

7 0
3 years ago
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if you make a solution by dissolving 1.0 mol of Fecl3 into 1 kg of water how would the osmotic pressure of this solution compare
sukhopar [10]
Thus the FeCl3 will form 3 Cl- ions and 1 Fe3+ ion. So the molarity of ions of FeCl3 is 4 times than glucose. So according to the calculation formula, the osmotic of FeCl3 is 4 times of glucose.
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4 years ago
Describe how to use Le Chatelier’s principle to predict the possible ways a chemical system can respond to changes.
Andre45 [30]
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4 0
3 years ago
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If 123 ml of a 1. 1 m glucose solution is diluted to 500. 0 ml, what is the molarity of the diluted solution?
Ludmilka [50]

The molarity of the diluted solution is 0.2706 M.

Given,

M₁ = 1.1 M

V₁ = 123 mL

V₂ = 500.0 mL

The dilution law formula is M₁V₁ = M₂V₂

1.1*123=M₂*500

M₂=0.2706 M

<h3 /><h3>Molarity </h3>

Molarity, a concentration unit used in chemistry, is determined by dividing the number of moles of a solute by the number of liters of solution. The phrase "molar concentration" (also known as "molarity," "amount concentration," or "substance concentration") refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. The most frequent measure of molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

Learn more about Molarity here:

brainly.com/question/2817451

#SPJ4

6 0
2 years ago
Heather just drank 40.0 grams of water (H20). How many moles of water did she just drink? O a. 2.22 moles b. 45 moles O c. 40.0
Ksju [112]

Answer:

This question begins with something, you should know: molar mass from water is aproximately 18 g/m, so if 18 grams of water are contained in 1 mole, the 40 grams occuped 2.22 moles. As you see, opcion a is the best!

Explanation:

5 0
3 years ago
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