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ivann1987 [24]
4 years ago
12

State a hypothesis based on the following:

Chemistry
1 answer:
leonid [27]4 years ago
8 0
I think the one that will have the most results would be mechanical because you’re shaping it so you can model it and it wouldn’t take that long
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how many grams of alcl3 are produced when 355 ml of 1.65 m hcl solution are reacted with excess al according to the reaction?
lara [203]

According to the reaction, when 355 ml of 1.65 m Hydrochloric acid solution are combined with too much aluminum, 26.03 g of aluminum chloride is created.

An inorganic substance with the formula AlCl3 is aluminum chloride, also referred to as aluminum trichloride. It takes the form of [Al(H2O)6] hexahydrate. Aluminum chloride is ALCl3, which is composed of six water molecules. Aqueous hydrochloric acid, also referred to as muriatic acid, is a type of hydrochloric acid. It is a colourless solution with an overpowering odor. Strong acid is how it is categorized.

2 Al(s) + 6 HCl is the given reaction. ———-> 2 AlCl3 + 3H2

Using the provided data

The amount of HCl in moles is n= Volume * Concentration = 0.58575 mol (1.65 M * 355 ml)/1000 ml

based on the response,

It takes 6 mols of HCl. To neutralize 2 moles of aluminum, 0.58575 mol of hydrochloric acid must be used.

using the cross-multiplication method, 0.19525 moles are obtained by multiplying 0.58575% by 2/ 6.

Weight of the AlCl3 = 0.1952 moles * 133.340538 g/mol = 26.03 g

Learn more about Hydrochloric acid  here

brainly.com/question/15102013

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5 0
1 year ago
An object with a mass of 10.0 kg is moving at a speed of 5.00m/s. The kinetic energy of the mass is
NemiM [27]
KE = (1/2)mv^2
m = 10.0 kg
v = 5.00 m/a

KE = (1/2)(10.0)(5.00)^2 = (1/2)(10.0)(25.0) = 125 J

C. 125 J
7 0
3 years ago
Specific gravity is the density of an object compared to the density of .
Romashka [77]

Answer: option C. Water

Explanation:

3 0
3 years ago
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Evidence of chemical reactions include -
Ludmilka [50]

Answer:

I think it's light production, color change (new/different), gas production (bubbles/fizzing - not boiling), precipitate, and temperature change

6 0
3 years ago
Cereal is an example of what type of matter?
Delvig [45]
Cereal is a heterogeneous mixture because it is composed of many different types of ingredients.
5 0
3 years ago
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