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4 years ago

For any object in motion, distance is always _________ displacement

Chemistry

1 answer:

finlep [7]4 years ago

8 0

Distance and displacement are two quantities that may seem to mean the same thing yet have distinctly different definitions and meanings.

Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.

Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

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In these solutions, identify the solute and the solvent. Sea water, a solution composed of a variety of salts dissolved in water

Yanka [14]

Answer:

The solvent is Nitrogen and the solute is oxygen

Explanation:

Normally the solvent always contains higher amount of substance than the solute in a particular solution

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3 years ago

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Calculate the solubility in g/l of lead (ii) fluoride in water at 25 oc if ksp of pbf2 is 4. 1 x 10-8.

Svetlanka [38]

The solubility of Lead(II)Fluoride is 2.17 × 10⁻³ g/L in water at 25°C.

At a specific solution temperature, a solid salt compound can entirely dissolve in pure water up to a predetermined molar solubility limit. The dissociation stoichiometry ensures that the molarities of the constituent ions are proportionate to one another. The saturable nature of the solution causes them to also coexist in a solubility equilibrium with the solid component. At this temperature, a solubility product constant Ksp is calculated using the solubility product of their molarity values.

Lead (II) fluoride has the following solubility equilibrium for its saturated solution:

$PbF_2(s)$ ⇄ $Pb^2^+ (aq) + 2F^- (aq)$

$K_s_p = [Pb^2^+][F^-]^2$

This compound dissociates in a 1:2 ratio of ions. For the compound dissolved in pure water, the Ksp is expressed in terms of the molar solubility "x" as:

$K_s_p = (x) (2x)^2\\$

$K_s_p = 4x^3$

Here,

$K_s_p= 4.1$ × $10^-^8$

4.1 × 10⁻⁸ = 4 x³

x³ = 1.025 × 10⁻⁸

x³ = 10.25 × 10⁻⁹

x = 2.17 × 10⁻³ g/L

Therefore, the solubility of Lead(II)Fluoride is 2.17 × 10⁻³ g/L.

Learn more about solubility here:

brainly.com/question/23946616

#SPJ4

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2 years ago

Fossil evidence, rocks, and the shape of continents provide support for thr theroy of

gogolik [260]

Fossil evidence, rocks, and the shape of continents provide support for the theory of plate tectonics.

hope this helps, God bless!

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4 years ago

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How to find efficiency of a pulley system

Digiron [165]

Multiply the weight of the object by the distance it traveled to find the amount of work output. For the example: 10 lbs. x 1 foot = 10 foot-pounds. Find the work efficiency by dividing the work output by the work input and multiplying by 100.

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4 years ago

Solve the equation for n 0.0092=0.608 x (n/84.01)+n/52.5

kotegsom [21]

Answer:

$n\approx 0.350$