0.00401g is dissolved in 675 000ml what is the concentration of this solution in ppm

Answer:

It is equal to the number of moles of acid that reacted. When Oxalic acid is your limiting reactant it is the # of moles of oxalic acid used. When NaOH is your limiting reactant it is equal to the number of moles of NaOH used.

The  moles of OH⁻ that reacted in the titration can be found by;

The moles of OH⁻ used in the titration experiment is dependent on the number of moles of the limiting reactant, used during the Titration in the laboratory.  

From the data contained in the table, the limiting reactant is the oxalic acid. therefore the number of moles of OH⁻ is equal to the number of moles of oxalic acid used during titration.

Hence we can conclude that the  moles of OH⁻ that reacted in the titration can be found by determining the number of moles of oxalic acid used in the titration

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Answer:

Jupiter

Biggest Planets In Our Solar System

Explanation:

hopes this help

Answer:

Explanation:

If the question is truly the biggest planet on earth, then the answer is earth.

But if the question is the biggest planet in the solar system, then it is Jupiter.

Answer:

lemme slurp them juices out of that p*ssy. You must taste sweet.

Explanation:

Answer:

1.9 x 10⁻¹³M

Explanation:

Given 0.027M Ca(OH)₂(aq) => 0.027M Ca⁺²(aq) + 2(0.027M) OH⁻(aq)

2(0.027M) OH⁻(aq) = 0.054M OH⁻(aq).

from [H⁺][OH⁻] = 1 x 10⁻¹⁴ at STP Conditions (0°C, 1Atm)

∴{H⁺] = [H₃O⁺] = (1 x 10⁻¹⁴/0.054)M = 1.85 x 10⁻¹³M or 1.9 x 10⁻¹³at 0°C & 1Atm pressure.

Answer:

You shouldn't smell nor taste chemicals. They are dangerous and if inhaled or swallowed, they will cause many health issues.

Considering the definition of polar molecule, Br has a negative partial charge and H a ​​positive partial charge.

The bond dipole moment can then be defined as the magnitude of the polarity in a bond. This moment represents the distribution of electron density in a bond.

The distribution of charges is due to the fact that the atoms that form them have different electronegativity, in such a way that when a covalent bond is created and the electrons are shared, the electrons of the bond are attracted with different force by the atoms that share them.

Then, a polar molecule is one that is neutral, that is, it does not have a net charge. But it has an internal distribution of charges that form a partially positive region and a partially negative region.

That is, polar bonds are established between atoms of different electronegativity, so that the atom with higher electronegativity will attract the electrons towards itself, giving rise to two opposite charges in the bond and  creating a negative charge on the atom because the electrons have negative charge.

In this way, in a polar molecule there is separation between positive and negative charges. The bonds will be the more polar the greater the electronegativity difference between the bonded atoms.

In this case,  bromine Br has a higher electronegativity and attracts electrons shared with hydrogen H more strongly. Then Br has a negative partial charge and H a ​​positive partial charge.

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Answer:

[tex][H_2]_{eq}=0.183M[/tex]

[tex][I_2]_{eq}=0.183M[/tex]

[tex][HI]_{eq}=0.025M[/tex]

Explanation:

Hello.

In this case, for this equilibrium problem, we first realize that at the beginning there is just HI, it means that the reaction should be rewritten as follows:

[tex]2HI\rightleftharpoons H_2+I_2[/tex]

Whereas the law of mass action (equilibrium expression) is:

[tex]Kc=\frac{[H_2][I_2]}{[HI]^2}[/tex]

That in terms of initial concentrations and reaction extent or change [tex]x[/tex] turns out:

[tex]Kc=\frac{x*x}{([HI]_0-2x)^2}\\\\54.3=\frac{x^2}{(0.391M-2x)^2}[/tex]

And the solution via solver or quadratic equation is:

[tex]x_1=0.183M\\\\x_2=0.210M[/tex]

Whereas the correct answer is 0.183 M since the other value yield a negative concentration of HI at equilibrium (0.391-2*0.210=-0.029M).This, the equilibrium concentrations are:

[tex][H_2]_{eq}=0.183M[/tex]

[tex][I_2]_{eq}=0.183M[/tex]

[tex][HI]_{eq}=0.391M-2*0.183M=0.025M[/tex]

Regards.

Answer:

control of cancer formation and proliferation control of bacterial, fungal and microbial growth

Explanation:

Because Redox reaction are emerging as vital processes involved in cell survival and proliferation.

Answer:

a

Explanation:

Answer:

a

Explanation:

These rocks form underground by magma as it cools down.

HOPE IT HELPED

Answer:

only certain wavelengths of the light can be absorbed.

There are no transitions in the hydrogen atom that corresponds to the wavelength of yellow or orange light.

Each color corresponds to a particular wavelength. The wavelengths that are observed for a given atom depends on the transitions that are possible for electrons of the atom.

In the hydrogen atom, there is no transition whose wavelength corresponds to the wavelength of yellow or orange light. None of the lines in the hydrogen spectrum has such wavelength.

For instance, yellow light corresponds to 590 nm - 560 nm but this wavelength is missing from the spectrum of hydrogen(crosscheck in the image attached).

As such, we do not see yellow or orange lights in the hydrogen spectrum.

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Answer:

The real answer is carbon dioxide. they breath carbon and let out oxygen for us to breath

Answer:

the answer would be (c) it does not have to take in nutrients

Explanation:

Answer:

c

Explanation:

it does not have nutrients

Answer:

Sublimation

Explanation:

Answer:

solids have definite shape and volume. liquid have definite volume but not definite shape. gases do not have definite volume as well as definite shape.

Answer:

causing the particles to move faster and farther apart.

Explanation:

hope this helps

As the kinetic energy possessed by the particles of matter increases and so does the distance, hence particles tend to move faster.

Kinetic energy is "a form of energy that an object or a particle has by reason of its motion".

Particle is "a small portion of matter".

What is matter?

Matter is "anything that occupies space and has mass".

What is distance?

Distance of "an object can be defined as the complete path travelled by an object".

Hence, the kinetic energy of particles of matter increases with the increase in the distance between the particles.

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Answer:

Explanation:

As the earth revolves around the sun, and the moon revolves around the earth, the intensity of sunlight hitting the moon changes over time. This explains why we get the phases of the moon. The answer as to why, is because the moon was moving towards a state of being a "full moon."

With the compounds sample mass at  150g, and we are left to decipher the proportion of Carbon, Hydrogen, and Oxygen amount, The compound's empirical formula is mathematically given as

Ep=C5H12O4

Question Parameters:

A 150 g sample of a compound is comprised of 44.07% C, 8.98% H and the remainder is O by mass

Generally, the equation for the compound  is mathematically given as

CxHyOz

Where

Therefore

O percentage is

Po100-(44.07+8.98)

Po=46.95

For Cx we determine the minimum value

hence

x=1.25*4

x=5

For Hy

y=3.0*4

For  Oz

y= 1*4

y=4

In conclusion, the empirical formula is

C5H12O4

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Answer:

[tex]\%NaHCO_3=61.2\%[/tex]

Explanation:

Hello.

In this case, since the reaction between sodium bicarbonate and a symbolic HA is:

[tex]NaHCO_3+HA\rightarrow NaOH+CO_2[/tex]

For 0.561 g of carbon dioxide (molar mass = 44 g/mol) we can compute the required mass of sodium bicarbonate (molar mass = 84 g/mol ) via stoichiometry:

[tex]m_{NaHCO_3}=0.561gCO_2*\frac{1molCO_2}{44gCO_2}*\frac{1molNaHCO_3}{1molCO_2}* \frac{84gNaHCO_3}{1molNaHCO_3}\\ \\m_{NaHCO_3}=1.071gNaHCO_3[/tex]

Then, the percent by mass of sodium bicarbonate in the original mixture is obtained by dividing the mass of the sodium bicarbonate from which the CO2 was yielded by the total mass of the mixture:

[tex]\%NaHCO_3=\frac{1.071g}{1.75g}*100\%\\ \\\%NaHCO_3=61.2\%[/tex]

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Answer:

[tex]Molecular \: mass \: of \: MgSO_{4}.2H_{2}O\:, \\ \\ ⇝ 24 + 32 + 16 \times 4 + 2(2 \times 1 + 46) \\ \\ ⇝ 24 + 32 + 64 + 36 \\ \\ ⇝156 \: u[/tex]

[tex]\bold\pink{Percentage \: of \: substance \: in \: compound} \\ \\ \bold\pink{⇝ \frac{mass \: of \: substance}{mass \: of \: compound} \times 100}[/tex]

[tex]\% \: age \: of \: Sulphur \: (S) = \frac{32}{156} \times 100 \\ \\ ⇝0.205 \times 100 \\ \\ \fbox\blue{\:⇝ 20.5\%\:}[/tex]

hope helpful ~

Answer:

20.51%

Explanation:

Mass of S = 32g

Mass of MgSO₄ x 2H₂O = 24 + 32 + 64 + 36 = 56 + 100 = 156

Answer:

I say A not only because it's a repeat of B but because it also doesn't talk about in which direction the velocity is.

Explanation:

Hope this helped.

A brainliest is always appreciated.

The compound is unsaturated due to the presence of double bond.

A saturated compound is a compound that have carbon-carbon single bonds while on the other hand, Unsaturated compounds are the compunds having double bonds and triple bonds. We can see that there is double bond between two carbon atoms so we can conclude that the compound is unsaturated due to the presence of double bond.

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The change in internal energy of the system is 110 kJ.

Change in internal energy is the difference between the energy absorbed by the system and the work done by the system.

To calculate the change in the internal energy of the system, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The change in internal energy of the system is 110 kJ.
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With a 27.7 mL sample of a 0.400 M aqueous hypochlorous acid solution  titrated with a 0.335 M aqueous potassium hydroxide solution, the pH value is mathematically given as

pH=12.90

Moles of HClO=0.329*21.5

Moles of HClO=7.0735

and

Moles of KOH=0.456*23.3

Moles of KOH=10.6248

Hence

The net mole of KOH=10.6248-7.0735

The  net mole of KOH=3.5513

Volume of solution=21.5+23.3

Volume of solution=44.8ml

Generally, the equation for the  Concentration of KOH is mathematically given as

CKOH=mole/volume

Therefore

CKOH=3.5513/44.8ml

CKOH=0.07927M

In conclusion,

pOH=-log{OH-}

pOH=-log{0.07927}

pOH=1.10

pH=14-110

pH=12.90

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Answer:

342.29648 g/mol

Explanation:

Mass of sugar C₁₂H₂₂O₁₁ is required to provide 2.50 x 10²³ molecules of O₂ is 11.84.

Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.

No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.

Mass of a particular product is also find out by stoichiometry of a reaction as per the no. of mole given in the reaction.

Reaction is-

C₁₂H₂₂O₁₁ + 12O₂ → 12CO₂ + 11H₂O

1 mole of C₁₂H₂₂O₁₁ forms 12 moles of O₂.

12 × 6.02214076 × 10²³ molecules of O₂ formed by 342.3 g of C₁₂H₂₂O₁₁.

1 molecule of O₂ formed by 4.73 × 10⁻²³  g of C₁₂H₂₂O₁₁.

2.50 × 10²³ molecules of O₂ formed by 11.84 g of C₁₂H₂₂O₁₁.

Therefore, Mass of sugar C₁₂H₂₂O₁₁ is required to provide 2.50 x 10²³ molecules of O₂ is 11.84.

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Answer:

Neon-20 would be the most abundant isotope among the three.

Explanation:

The relative atomic mass of an element is the average of the relative isotope mass of its naturally-occurring isotopes, weighted according to the relative abundance of each isotope.

The relative isotope mass of an isotope atom is approximately the same as its mass number. The relative isotope mass of one neon-20 atom is approximately [tex]20[/tex]. Similarly, the relative isotope mass of one neon-21 atom and one neon-22 atom will be [tex]21[/tex] and [tex]22[/tex], respectively.

The relative atomic mass of neon is approximately [tex]20.180[/tex] (as seen on a modern periodic table.) This number is supposed to be the weighted average of the relative isotope mass of neon-20, neon-21, and neon-22 according to their relative abundance.

If the three isotopes were to have a relatively equal abundance, then the relative atomic mass of neon should be very close to [tex]21[/tex]. However, that's not actually the case. The commonly-accepted relative atomic mass of neon, [tex]20.180[/tex], is significantly tilted towards [tex]20[/tex], which is the (approximate) relative isotope mass of neon-20.

The question assumes that neon-20, neon-21, and neon-22 are the only three naturally-occurring isotopes of neon. In other words, there's no naturally-occuring isotope of neon with an isotope mass smaller than that of neon-20. Based on that assumption, neon-20 must have been considerably more abundant than the heavier neon-21 and neon-22 to ensure that weighted average [tex]20.180[/tex] is much smaller than the relative isotope mass of neon-21 and neon-22.

Answer:

5496 g of epinephrine

Explanation:

From the question, 5.00 moles of epinephrine is required to make Epipen.

Molar Mass of epinephrine = 183.20 g/mol

mass of 5 moles of epinephrine= [tex]5.00 moles * 183.20 g/mol=916 g[/tex]

Therefore, 30.00 moles of epinephrine needs 30.00 * 916/5 =5496 g of epinephrine

Answer:

 Exponential

Explanation:

Because its the numbers/anything that is becoming more and more rapid.

Answer:

- Krypton.

- Silicon.

Explanation:

Hello.

In this case, since the first element's last term in the electron configuration is 4p⁶, by looking at the fourth period, the only element having sic 4p electrons is Kr as its electron configuration is:

[tex]Kr^{36}:1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^1^0,4p^6[/tex]

In the second case, the element of the third period having two 3p electrons or [tex]3p^2[/tex] the last term in its electron configuration is silicon as shown below:

[tex]Si^{14}:1s^2,2s^2,2p^6,3s^2,3p^2[/tex]

Best regards.