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3 years ago

In kinetics, the order of a reaction

1 answer:

4 0

I think it should be C. You can't always look at the chemical equation of a reaction and tell what order the over all reaction will be. To do this, you need to preform experiments that have some concentrations held constant while changing others to see how the concentrations affected the rate. After enough trials with enough concentrations held constant and changed, you will be able to determine the order of each reactant which will give you the order of the overall reaction.

I hope this helps. Let me know in the comments if anything is unclear.

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To make a 7.21M solution, how many moles of solute will be needed if 12.0 liters of solution is required? (Stoichiometry)

djyliett [7]

Answer:

I think it's 78. I might be wrong I'm not sure.

Explanation:

8 0

3 years ago

Draw the lewis structure for the polyatomic trisulfide s−23 anion. be sure to include all resonance structures that satisfy the

mezya [45]

The following are the steps involved in drawing Lewis structure of the polyatomic trisulfide anion $S_{3}^{2-}$ :

Total number of valence electrons = $(3 * 6) + 2 = 20 electrons$

Resonance is not possible in this ion. The molecular geometry of the ion will be bent as there are two lone pairs and two bond pairs on the central atom.

3 0

3 years ago

What distance does electromagnetic radiation travel in 33 fs?

umka2103 [35]

Given:

Time taken by the electromagnetic radiation, t = 33 fs

To determine:

The distance (d) travelled

Explanation:

Time taken = 33 fs (femtosecond)

1 fs = 10⁻¹⁵ s

Thus t = 33 *10⁻¹⁵ s

Speed of electromagnetic radiation = 3*10⁸ m/s

Distance = Speed * Time = 3*10⁸ ms-1 * 33*10⁻¹⁵ s = 99*10⁻⁷ m

Ans: distance traveled = 9.9*10⁻⁶ m

4 0

3 years ago

I make my cup of coffee in the morning by pouring boiling water over ground-up coffee beans held in a special piece of paper and

Zigmanuir [339]

Since there are no choices given, my answer might not be what you're looking for. But it can definitely be a correct answer. The technique is called filtration. Filtration is a physical separation to separate the liquid and solid in a mixture. The mixture should be composed of an insoluble solid in a solvent. The mixture is usually passed through a semi-permeable barrier. In this case, a special piece of paper is used. The solvent is the liquid and the solid is the coffee bean grounds. Only the liquid can pass through the paper. The liquid that passes through the paper is generally called a filtrate.

4 0

3 years ago

An object has a gravitational potential energy that is 800 Joules. Its

olya-2409 [2.1K]

Answer:

36.28 kg

Explanation:

Given data:

Gravitational potential energy of object = 800 J

Height from ground = 2.245 m

Mass of object = ?

Solution:

Formula:

P.E = mgh

g =acceleration due to gravity = 9.8 m/s²

by putting values,

800 J = m× 9.8 m/s² ×2.25 m

J = kgm²/s²

800 kgm²/s² = m× 22.05 m²/s²

m = 800 kgm²/s² /22.05 m²/s²

m = 36.28 kg

6 0

3 years ago