The table shows the solubility of two substances in water at 20 °C.


Solubility of Substances
Mass
(kg) Solubility of Sodium Chloride
(g per 100 g of water) Solubility of Lead Nitrate
(g per 100 g of water)
100 L K
200 36 54


Part 1: What will be the values of L and K for 100 kg of each substance?
Part 2: Explain your answer for Part 1.

In passive transport, substances move from an area of higher concentration to an area of lower concentration in a process called diffusion. A physical space in which there is a different concentration of a single substance is said to have a concentration gradient.

In passive transport, substances move from an area of higher concentration to an area of lower concentration in a process called diffusion. A physical space in which there is a different concentration of a single substance is said to have a concentration gradient.

The volume of the palladium is 103.3 cubic centimeters.

We know that;

1 ounce = 28.35 grams

44.1 ounces = 44.1 ounces * 28.35 grams/1 ounce

                    = 1250.23 g

Density = mass/volume

volume = mass/Density

volume = 1250.23 g/12.1 g/cm3

volume = 103.3 cubic centimeters

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The palladium has a volume of 103.3 cubic millimeters.

A substance's density is determined by how much mass or amount there is per unit of volume.

Mass divided by volume is the formula for density.

On the periodic table, density varies from element to element and is influenced by external factors like temperature and atmospheric pressure.

1 pound equals 28.35 grams.

1 ounce = 28.35 grams, thus 44.10 ounces equals 1250.23 grams.

Mass/volume = Density.

Volume = Mass / Density.

For example, volume = 1250.23 g times or 12.1 g per cubic centimeter.

Volume = 103.3 cubic centimeters

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A major unifying concept in biology is evolution. "Nothing in biology makes sense except in the light of evolution," Theodosius Dobzhansky once said.

Numerous branches of biology provide proof of evolution:

Anatomy:  Because a physical characteristic was present in the following common ancestor, species may have similar physical characteristics (homologous structures).

the study of molecules. The genetic code and DNA show how life has a common ancestor. Comparing species' DNA can reveal how closely related they are.

Biogeography :  Evolution and geological change are reflected in the global distribution of creatures as well as the distinctive characteristics of island species.

Fossils : The existence of species that are related to modern species but are now extinct is documented through fossils.

Direct perception: in creatures with brief life cycles, small-scale evolution can be seen directly (e.g., pesticide-resistant insects).

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The noble gases family on the periodic table has the highest effective nuclear charge as compared to other groups in the periodic table.

A higher effective nuclear charge leads to greater attractions to the electrons which results in pulling of electron closer to the nucleus which causes in a smaller atomic radius of the atom. When we move down the group, the number of shells or orbits increases, so there is a greater distance between the nucleus and the outermost shell. Effective nuclear charge increases when we move from left to right in the periodic table due to the increasing of atomic charge and shielding effect. Due of a same number of shielding electrons across a period, the valence electrons are pulled more strongly by the protons present in the nucleus. Effective nuclear charge increases when we move from left to right in the periodic table while on the other hand, effective nuclear charge decreases down the group in the periodic table.

So we can conclude that the noble gases family on the periodic table has the highest effective nuclear charge as compared to other groups in the periodic table.

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The net Ionic equation for the reaction is

Ag⁺+ Cl⁻→ AgCl

Steps for writing net ionic equation:

Balanced Chemical equation:

AgNO₃(aq) + NaCl(aq) → AgCl(s) + NaNO₃(aq)

Splitting

Ag⁺ + NO³⁻ + Na⁺ + Cl⁻ → AgCl + Na⁺ + NO³⁻

Net Ionic Equation

Ag⁺+ Cl⁻→ AgCl

Na⁺ and NO³⁻ are spectator ions, hence they are not included in the net ionic equation. Because it exists in solid form, AgCl cannot be separated into ions.

Therefore, net ionic equation is

Ag⁺+ Cl⁻→ AgCl

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The new volume level of the water is 357.84 ml.

The mass of the lead sample = 5 gm

The mass of the iron sample = 3.2 g

The volume of the water = 367 ml

The density of lead = 11.34 g/cc

The density of iron = 7.874 g/cc

[tex]Density = \frac{Mass}{ Volume}[/tex]

[tex] Volume = \frac{ Mass}{Density}[/tex]

The volume of the lead is,

[tex]Volume = \frac{Mass \: of \: lead}{ Density \: of \: lead}[/tex]

[tex] \frac{5}{11.34} [/tex]

= 0.441 ml

The volume of lead is 0.441 ml.

The volume of the iron is,

[tex]Volume = \frac{Mass \: of \: iron}{ Density \: of \: iron}[/tex]

[tex] = \frac{3.2}{7.874} [/tex]

= 0.406 ml

The volume of iron is 0.406 ml.

The new volume level of the water sample is,

New volume = Original water volume + Volume of lead + Volume of iron

= 367 + 0.441 +0.406

= 367.84 ml

The new volume level of the water is 357.84 ml.

Therefore, the new volume level of the water without the unit is 357.84.

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Answer:

Its valency

The number of valence electrons of an atom gives us an idea of the combining capacity. The number of valence electrons of an atom gives us an idea of the combining capacity.

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Hope this helps!

Have a great day and God bless! :)

a pound is 0.45359237 kilograms if you do it out or you could round it to 0.45

so 78 pounds is 35.3802049 kilograms, or you could round it to 35.38

if you liked my answer, please rate thanks and award brainliest

hope this helped :)

The formula when converting g/mL to mg/L is to multiply the mass / volume value by 1e+6

When we do this we come up with 1,730,000

This however, should be written as either 1.73⋅10^5 or 1.73E+5.

Answer:

Explanation:

The formula for finding the volume of an object given it's mass and density is given by

[tex]volume = \frac{mass}{density} \\ [/tex]

From the question

mass = 1.2 × 10³ grams

density = 0.53 g/cm³

We have

[tex]volume = \frac{1.2 \times {10}^{3} }{0.53} = 2264.1509\\ [/tex]

We have the final answer as

2264.15 cm³

Hope this helps you

Answer:

In a science experiment, the

manipulated or changed.

= Independent variable

I HOPE IT HELP YOU

The number of covalent bonds formed by carbon is four.

Covalent bonds are formed between carbon atoms and atoms of other elements or carbon. Carbon compounds come in a wide variety, with atom counts ranging from one to thousands.

Since carbon has four valence electrons, it can create four covalent bonds to reach its full outer energy level. The most stable configuration of electrons is at the maximal outer energy level.

Covalent bonds formed between carbon atoms can be single, double, or triple bonds. One pair of electrons is shared by two carbon atoms to form a single bond. They share two pairs of electrons in a double bond and three pairs in a triple bond.

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The number of avocados in an average selection of 12 crates is 500 avocadoes.

The total number of avocadoes in the truck is determined from the correct insurance value f the avocadoes.

The total number of avocadoes in the truck is calculated as follows:

Weight of one avocado = 0.4 pound

Value of avocado per pound = $0.30

Value of one avocado = $0.30 * 0.4

Value of one avocado = $0.12

Value of one crate of avocado = $2000/400

Value of one crate of avocado = $5

Number of avocadoes per crate = 5/0.12 41 avocadoes

Number of avocados in an average selection of 12 crates =  5/0.12 * 12

Number of avocados in an average selection of 12 crates = 500 avocadoes

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The speed limit on a many highways is 70 miles per hour. this speed to kilometers per day is 2703.69 km / day.

The speed limit on u.s highways is given as,

speed = 70 miles per hour or 70 mile / h

we have to convert it in kilometers per day,

so,

1 miles =  1.609344 kilometers

and, 1 day = 24 hours

therefore, in 1 hour = 1/ 24 day

applying above values, we get,

70 mile per hour = ( 70 × 1.609344 ) kilometers × 24 / day

70 miles per hour = 112.65408 kilometers × 24 / day

70 miles per hour = 2703.698 kilometers per day

Hence,The speed limit on a many highways is 70 miles per hour. this speed to kilometers per day is 2703.69 km / day.

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Answer: 35/13

Explanation:

Using the dilution formula, the dye concentration in the original solution was 0.158 M.

The dye concentration in the original solution is determined from the dilution formula as follows:

Where M₁ = initial concentration

V₁ = original volume

M₂ = final concentration

V₂ = final volume

For the final dilution:

M₁ = M₂V₂/V₁

M₁ = 0.000158 * 100/5

M₁ = 0.000316 M

For the first dilution:

M₁ = M₂V₂/V₁

M₁ = 0.00316 * 100/2

M₁ = 0.158 M

Therefore, the dye concentration in the original solution was 0.158 M.

In conclusion, the dye concentration in the original solution is obtained using the dilution formula.

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Answer:

A poor safety practice would be to eat a plant to test it.

Explanation:

D. Eating a plant to test it.

→ You shouldn’t eat a random plant without knowing what it is or without washing it.

hopefully this helps you ^^

Answer:

D. Eating a plant to test it

Explanation:

Cleaning up, wearing gloves and a helmet are safe when working outdoors. Eating certain plants can be harmful, especially if you're not familiar with it.

If you omit baking soda from the recipe, the product's texture isn't as light and fluffy, it is because baking soda is a salt that rises the dish.

Baking soda is sodium bicarbonate, and it is the bicarbonate of soda. It is a salt of sodium and bicarbonate. Its chemical formula is NaHCO3.

It is used as an antacid, and it is also used in baking dishes, such as cakes, biscuits, etc. Baking soda is sued in baking because it rises the cakes and makes it fluffy and soft.

Thus, not using baking soda will make the dishes hard and the dish will not rise.

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The radius of the atom that just fits into the octahedral site is 0.414 times the radius of Fe.

The ratio of a cation's lower ionic radius to its greater ionic radius (anion) is known as the radius ratio.

This rule aids in figuring out how ions are arranged in distinct crystal formations. It aids in determining an ionic crystal structure's stability.

According to the limiting radius ratio,

= 0.414

R = radius of an atom

r = radius of Fe

Hence, the radius of the atom that just fits into the octahedral site, R = 0.414 ×r

R= 0.414 times radius of Fe(r)

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Answer: I assume you mean the atomic number.

The atomic number would be 31.

Answer: Sodium Chloride

Explanation:

Na= sodium Cl= Chloride

Answer

is Nacl

Explanation:

NacI

The remaining acetanilide when the solution was cooled to 25°C is 13.513 mg.

What happens in the crystallization process?

The solid compound is dissolved in the solvent at elevated temperatures during the crystallization process, and the crystallized product is obtained by slowly cooling the solution.

Given that,

The solubility of acetanilide at 100°C is 1 g per 10 mL of water. Thus, to dissolve 250 mg of acetanilide at a high temperature, that is 100 °C, we need 2.5 mL of water. At 25°C after the re-crystallization there will be some dissolved acetanilide, which can be calculated as- 185mL of water is needed to dissolve 1g or 1000mg of acetanilide at 25°C. Thus, in 2.5 mL of water, there will be

               (2.5×1000)/185 = 13.5135 mg of acetanilide.

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Answer:

maby all of them vote from I'll pay get did you

When 50.08 g of 1.00 M NaOH at 23°C is added to 50.22 g of 1.00 M HCl at 23°C, the resulting temperature of mixture is 29.7°C, then the reaction is exothermic.

An exothermic reaction is a reaction which results in the energy release from a system. Energy is emitted, so there is a decrease in the energy. Thereby, the change in enthalpy is negative.

The amount of heat gained or lost by a sample in a reaction is calculation by using the equation,

                                            q = mcΔT

where,

q = heat energy lost or gained

m = mass of the sample,

c = specific heat

ΔT = change in temperature

Given data :

mass = 50.08 g

c = 4.18 J/gK

ΔT = 29.7°C - 23°C = 6.7 K (we won't change celsius into kelvin as we're calculating the change)

Putting the values,

q = 50.8 x 4.18 x 6.7 = 1422.74 J

We know,

Molality = moles of solute

                  mass of solute

Moles = molality x mass

          = 1.00 M x 50.22 g = 50.22 mol

To calculate change in enthalpy -

ΔH =  - 1422.74 J = - 28.33 kJ/mol

           50.22 mol

The energy of the product is lower than energy of reactant, it is an exothermic process. Enthalpy change is negative for exothermic reaction.

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Filtration and evaporation are used to separate sand and salt mixture.

Separation of salt and sand mixture is as follows :-

In other words,  based on the fact that salt is soluble in water, while sand is not. So, you used the difference in solubility to separate a mixture of sand and salt.

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Answer: Filtration to collect the sand and distillation to collect the salt.

Explanation:

One of the risks of consuming a nonrenewable resource at a high rate is that the resource could be depleted quickly. Option A.

Nonrenewable resources are natural resources that are naturally replenished or are replenished at a much slower pace than they are being consumed.

Nonrenewable resources are unique from renewable resources in that the latter are replenished at a much faster rate than they can ever be consumed.

Examples of nonrenewable resources include mineral deposits, crude oil deposits, etc. Examples of renewable resources include solar energy, wind energy, etc.

Thus, if nonrenewable resources are consumed at a high rate, it greatly increases the risk of depletion quickly.

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The options to pick from are:

A.) The resource could be depleted quickly.

B.) The resource could be consumed very quickly.

C.) The resource could be replenished very slowly.

D.) The resource could be replenished quickly.

Answer:

A gold-colored metal with a volume of 59 cm3 and a mass of 980 g will have a density of 16.61 g/cm3 instead of 19.3 g/cm3

Recall that the density of a substance is the ratio of its mass and that of its volume.

In other words; density = mass/volume

In this case, the mass of the gold-colored metal is 980 g while the volume is 59 cm3

 density of the metal = 980/59

                             = 16.61 g/cm3

Thus, the density of the gold-colored metal is 16.61 g/cm3, instead of 19.3 g/cm3

Explanation:

Answer:

online it says .115km equals 11500cm