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lions [1.4K]
3 years ago
5

Determina el número de moles y moléculas de 25 gr de HCI

Chemistry
1 answer:
Talja [164]3 years ago
3 0

sodkaodkafsdpfkswes oExplanation:

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An aqueous potassium carbonate solution is made by dissolving 5.51 moles of K 2 CO 3 in sufficient water so that the final volum
ad-work [718]

Answer:

1.67mol/L

Explanation:

Data obtained from the question include:

Mole of solute (K2CO3) = 5.51 moles

Volume of solution = 3.30 L

Molarity =?

Molarity is simply the mole of solute per unit litre of the solution. It can be expressed mathematically as:

Molarity = mole of solute /Volume of solution

Molarity = 5.51 mol/3.30 L

Molarity = 1.67mol/L

Therefore, the molarity of K2CO3 is 1.67mol/L

3 0
3 years ago
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Elements in what family are all gases?
Alina [70]

Answer:

Noble gases.

Good Luck & Have a good day!

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6 0
3 years ago
Calculate the density of an object with a mass of 220 and a volume of 145mL.
LiRa [457]

Answer:

1.52 g/mL

Explanation:

The formula for finding the density of an object is d = m/v, or density = mass divided by volume.

Therefore, we can input the two values and solve for d.

d = 220/145

d = 44/29

d ≈ 1.52 g/mL

8 0
2 years ago
Consider the type of plant in which edible spoons and other disposable spoons would be produced. What systems would have to be i
Amiraneli [1.4K]
The plants are on the edible spoons
4 0
2 years ago
2Cu+S→Cu2S
xenn [34]

15.9 grams is the amount of copper sulfate this reaction will produce.

Given:

  • The reaction between copper and sulfur:

2Cu +S\rightarrow Cu_2S

  • 12.7 grams of copper completely reacts with 3.2 grams of sulfur to give copper sulfide.

To find:

The mass of copper sulfide produced

Solution

Mass of copper used by the scientist = 12.7 g

Mass of sulfur used by the scientist = 3.2 g

Mass of copper sulfide this reaction will produce. =?

According to the law of conservation of mass:

Total mass of reactants = Total mass of products

The total mass of reactants in the reaction = R = 12.7 g + 3.2 g = 15.9 g

The total mass of product formed in the reaction = P

P = R = 15.9 g

Mass of copper sulfide this reaction will produce = 15.9 g

15.9 grams is the amount of copper sulfate this reaction will produce.

Learn more about the law of conservation of mass:

brainly.com/question/14236219?referrer=searchResults

brainly.com/question/101125?referrer=searchResults

3 0
2 years ago
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