How many grams are in 5.90 moles of C8H18?

Answer:

1. 16.9.

2. 33.20

3. 33

Explanation:

In the sum, significant figures are determined by the number with the lower number of decimal places.

In the multiplication, significant figures are equal to the significant figures of the number with the low amount of significant figures

1. 3.41 + 5.3 + 8.2010 = 16.9

2. 19.22 + 11.000 + 2.979 = 33.20

3. 2.222 * 3.33 * 4.4 = 33

A dark colored peppered moths has a better survival rate in the forest than a light colored peppered moth due to their color difference which exposes the moths to predators.

Why do color matter in peppered moths?

Peppered moths usually have white with black spots across the wings. Organisms like to camouflage to boost their survival rate as they will be able to blend with the environment in other to evade predators.

The  dark colored peppered moths have the ability to evade predators more due to their color, as they can easily blended in with the dark tree trunks and the forest. While the light peppered moths will be easily picked by predators because of their color.

In summary, peppered moths are found in places like the tree trunks, dark forest where they can feed on leaves of some trees. The color of their wings has the ability to boost their survival chances.

Learn more about peppered moths here: https://brainly.com/question/1188600

#SPJ1

This means that the percent extraction is 21%. none of the options provided are correct. The correct answer is 21%.

To calculate the percent extraction with a TDS of 1.4% and a brew ratio of 15, follow these steps:

1. Convert the TDS percentage to a decimal by dividing by 100: 1.4 / 100 = 0.014
2. Multiply the TDS by the brew ratio: 0.014 * 15 = 0.21
3. Convert the result to a percentage by multiplying by 100: 0.21 * 100 = 21%

However, 21% is not among the provided options. It's possible that there might be an error in the question or the given options. Please double-check the question and the provided data.

Learn more about percent extraction

brainly.com/question/10305652

#SPJ11

It take a larger partial pressure difference for oxygen to dissolve in plasma vs carbon dioxide because of its much higher solubility in plasma.

Partial pressure is defined as the pressure of anyone gas that arises in the container with more than one gas and each gas exert pressure. Partial pressure is calculated only for gases which is exist in the same volume.

Oxygen dissolve in plasma because oxygen exerts a certain amount of partial pressure. Plasma cannot carry much oxygen because of its solubility.

Thus from the above conclusion we can say that It take a larger partial pressure difference for oxygen to dissolve in plasma vs carbon dioxide because of its much higher solubility in plasma.

Learn more about the Partial Pressure here: https://brainly.com/question/19813237

#SPJ4

Answer:

0.004214 moles

Explanation:

0.004214 moles of HCL per following takes one mole of HCl to neutralize one mole of NaOH;1) Moles/ml for 0.14 M NaOH: 0.14/1…

The freezing point depression (ΔTf) of the eucalyptol solution in chloroform is -1.67 ℃. Eucalyptol, being a solute, decreases the freezing point of the solvent (chloroform) due to its presence. The freezing point depression constant (Kf) for chloroform is used to calculate the change in freezing point.

To calculate the freezing point depression (ΔTf), we'll use the formula:

ΔTf = Kf * molality

First, we need to calculate the molality (m) of the solution. Molality is defined as the number of moles of solute per kilogram of solvent. We can calculate the number of moles of eucalyptol using its molar mass:

molar mass of C10H18O = 154.25 g/mol

moles of eucalyptol = mass / molar mass = 44.0 g / 154.25 g/mol = 0.2854 mol

Now, we can calculate the molality: molality (m) = moles of solute / mass of solvent (in kg) = 0.2854 mol / 0.800 kg = 0.3568 mol/kg

Finally, we can calculate the freezing point depression:

ΔTf = Kf * molality = 4.68 ℃/m * 0.3568 mol/kg = -1.67 ℃

Therefore, the freezing point depression (ΔTf) of the eucalyptol solution in chloroform is -1.67 ℃.

LEARN MORE ABOUT  freezing point here: brainly.com/question/31357864

#SPJ11

An atom with one electron in its valence shell will tend to lose that electron to achieve the noble gas configuration and becomes a cation.

Cations are positively charged ions and are formed when an atom loses its electrons. They lose one or more electrons from their valence shell but do not lose any protons. Therefore, they get a net positive charge. Some examples of cations are  Potassium (K⁺), Calcium (Ca²⁺), and hydrogen (H⁺).

Anions and cations are both ions and have opposite electrical charges. They feel attraction for each other. A cation repels another cation whereas an anion repels another anion.

An atom that has one electron in its valence shell will always tend to lose that electron to get completely filled electronic configuration. So the atom will convert into a cation to attain the more stable noble gas configuration.

For example, sodium has an electronic configuration 1s²2s²2p⁶3s¹. It has one electron in its valence shell, so it converts into Na⁺ by losing one electron and attains a configuration similar to Neon noble gas.

Learn more about cations, here:

https://brainly.com/question/1333307

#SPJ6

Answer:

no so boring........................

Answer:

Made up of proton, electron, neutron and 40 different subatomic particles

The solution's new concentration can be calculated to be 0.0147 M.

The dilution formula is used to calculate the concentration of a solution after dilution based on the initial concentration and the dilution factor. The dilution factor is defined as the ratio of the final volume to the initial volume.

The formula for dilution is

C1V1 = C2V2

where C2 is the solution's final concentration, V2 is the solution's final volume after dilution, C1 is the solution's original concentration, and V1 is its starting volume.

employing the dilution formula;

0.1176 * 30 = x * 240

x = 0.0147 M

Learn more about dilution formula:brainly.com/question/3078179

#SPJ1

The reaction of methanol with phenylalanine to form the methyl ester is typically carried out in the presence of an acid catalyst, such as hydrochloric acid. The acid serves to protonate the carboxylic acid group of phenylalanine, making it more reactive towards nucleophilic attack by methanol.

However, in the absence of an acid catalyst, the reaction can still occur, albeit at a much slower rate. This is because the carboxylic acid group of phenylalanine is still slightly acidic, and can act as a weak acid catalyst for the reaction with methanol. Additionally, the amino group of phenylalanine can act as a nucleophile, attacking the carbonyl carbon of the carboxylic acid group and forming an intermediate before being displaced by methanol.
Overall, while it is possible for methanol to react with phenylalanine to form the methyl ester in the absence of an acid catalyst, the reaction will be much slower and less efficient.

To know more about Methyl visit:

https://brainly.com/question/31490464

#SPJ11

The actual volume of water measured out is 10.012 mL.

To determine the actual volume of water, we can use the density formula: density = mass/volume.

Rearranging the formula to solve for volume, we get: volume = mass/density.

Plugging in the given values, we get:

volume = 9.990 g / 0.9978 g/mL = 10.012 mL.

Therefore, the actual volume measured out is slightly greater than the nominal volume of 10 mL, likely due to the meniscus formed by the water at the top of the pipet. This highlights the importance of proper measurement techniques and accounting for sources of error in experimental measurements.

You can learn more about volume of water at

https://brainly.com/question/4895505

#SPJ4

Answer:

the answer is A force is a push or pull that changes the motion of an object. Forces can make objects start or stop moving, cause objects that are already moving to speed up or slow down, or make objects change direction. Force arrows are used to represent both the magnitude and direction of forces.

Explanation:

hope it helps

The mass of magnesium chloride produced in the reaction is 4.17 grams.

The balanced chemical equation for the reaction between Mg and HCl is:

Mg + 2HCl → MgCl2 + H2

To solve this problem, we need to determine which reactant is limiting and use its stoichiometry to calculate the amount of product produced.

First, we need to find the number of moles of Mg and HCl used in the reaction:

moles of Mg = 4.00 g / 24.31 g/mol = 0.1643 mol

moles of HCl = 3.20 g / 36.46 g/mol = 0.0878 mol

According to the balanced equation, the reaction uses 1 mole of Mg for every 2 moles of HCl. Therefore, Mg is in excess and HCl is the limiting reagent.

The stoichiometry of the balanced equation tells us that 2 moles of HCl produce 1 mole of MgCl2. So, the number of moles of MgCl2 produced can be calculated as:

moles of MgCl2 = 0.0878 mol HCl × (1 mol MgCl2 / 2 mol HCl) = 0.0439 mol MgCl2

Finally, we can calculate the mass of MgCl2 produced using its molar mass:

mass of MgCl2 = 0.0439 mol × 95.21 g/mol = 4.17 g

Therefore, the mass of magnesium chloride is 4.17 grams.

To know more about mass:

https://brainly.com/question/15199003

#SPJ4

The precipitate in the reaction between MgCl2 (aq) and 2NaOH (aq) is Mg(OH)2 (s).

To learn more about The precipitate reaction refer to:

https://brainly.com/question/13016165

#SPJ1

Answer:

According to the law of conservation of matter, the mixture should weigh 175 g

Explanation:

The law of conservation of matter is one of the basic guiding principles of chemical reactions.

It states that matter is neither created nor destroyed but can be converted from one form to another.

Although this law has been faulted with advances in science and technology, it is still found basically useful.

So applying the law to the question at hand, it is expected that all the mass of the sugar gets added to all the mass of the water

This brings the total mass to 25 + 150 = 175 grams

The weight of the mixture of sugar and water has been 175 grams.

The law of conservation of mass has been based on the fact that the mass has neither been created and nor destroyed.

The law of conservation of mass stated the combination of the two compounds results in the final solution being the sum of the two reactants.

For example, the mass of a solution of compounds A and B will be:

Mass of A + Mass of B = Mass of solution

The sugar solution formed has been consisted of:

Sugar = 25 grams

Water = 150 grams.

According to the law of conservation of mass, the weight of the mixture has been:

Weight of mixture = Weight of sugar + Weight of water

Weight of mixture = 25 grams + 150 grams

Weight of mixture = 175 grams.

The weight of the mixture of sugar and water has been 175 grams.

For more information about the law of conservation of mass, refer to the link:

https://brainly.com/question/1687371

The determine the molarity of phosphoric acid, we need to use the equation M1V1 = M2V2 where M1 is the molarity of the acid, V1 is the volume of the acid, M2 is the molarity of the sodium hydroxide, and V2 is the volume of the sodium hydroxide.

The acid is 20ml and the volume of the sodium hydroxide is 15.9ml. We also know that the molarity of the sodium hydroxide is 0.200M. So, we can substitute these values into the equation and solve for the molarity of the acid M1V1 = M2V2 M1(20ml) = (0.200M) (15.9ml) M1 = (0.200M) (15.9ml) / (20ml) M1 = 0.159M Therefore, the molarity of phosphoric acid is 0.159M. In this titration, sodium hydroxide is being used as a base to neutralize the phosphoric acid. When the sodium hydroxide is added to the acid, it reacts to form water and a salt. The equation for this reaction is H3PO4 + 3NaOH → Na3PO4 + 3H2O.The balanced equation shows that one mole of phosphoric acid reacts with three moles of sodium hydroxide. So, the number of moles of sodium hydroxide used in the titration can be used to calculate the number of moles of phosphoric acid present in the original solution. From there, the molarity can be calculated by dividing the number of moles by the volume of the solution.

learn more about phosphoric acid here.

https://brainly.com/question/3700851

#SPJ11

The correct shape that illustrates an SF6 molecule is octahedral.

An SF6 molecule consists of six fluorine atoms surrounding a central sulfur atom. The sulfur atom has six valence electrons, and each fluorine atom has seven valence electrons.

To complete the octet of each fluorine atom, the sulfur atom shares one of its electrons with each fluorine atom, resulting in six S-F covalent bonds. The electron pair geometry of the SF6 molecule is octahedral because the sulfur atom has six bonding pairs and no lone pairs.

The molecular geometry of the SF6 molecule is also octahedral because the six fluorine atoms are evenly distributed around the sulfur atom. This results in a symmetrical shape that resembles two pyramids connected at their bases.

Visit here to learn more about atoms:

brainly.com/question/17545314

#SPJ11

To shed light on the process by which titanium dioxide (TiO2) nanoparticles are formed, titanium tetrachloride (TiCl4) hydrolysis has been investigated.

Hydrogen chloride (HCl) gas, which is extremely caustic and hazardous, is known to be released violently when TiCl4 reacts with water. The estimate of the scope and gravity of the effects of large accidents that have been identified, such as an unintentional spill of TiCl4, is, however, not shared by the industry.

An alternative strategy (which is the opposite of the solution above) would be to assert that since metal chlorides are often ionic, titanium chloride must be a tiny (covalent) molecule with weak molecular interactions if it is a liquid at room temperature.

to know more about  titanium dioxide here:

brainly.com/question/16978406

#SPJ4

The elements oxygen (O2), nitrogen (N2), phosphorus (P4), and sulfur (S8) can all be considered elements in their standard states with a standard enthalpy of formation of 0 kJ/mol.

Elements exist in their most stable form at a pressure of 1 atmosphere (atm) and a temperature of 25 degrees Celsius (298 Kelvin). In this state, certain elements have a standard enthalpy of formation of 0 kJ/mol. The elements that meet these criteria are known as "standard state elements."

Based on these criteria, the elements that can be considered standard state elements with a standard enthalpy of formation of 0 kJ/mol are:

Therefore, the elements oxygen (O2), nitrogen (N2), phosphorus (P4), and sulfur (S8) can all be considered elements in their standard states with a standard enthalpy of formation of 0 kJ/mol.

Learn more about standard enthalpy

brainly.com/question/28303513

#SPJ11

Answer:

instantaneous rate would be the term.

The first thing we need to do is calculate the mass of one mole of carbon dioxide, and we get:

(Mass of Carbon) + (Mass of 2 Oxygen atoms) = Molar mass

Therefore, carbon dioxide has a molar mass of 44 grams, which is the mass of the gas

In order to determine the mass of 4 molecules of carbon dioxide, we need to multiply it by 4 × 44 = 176g.

Hope this helps :)

\({ \qquad\qquad\huge\underline{{\sf Answer}}} \)

Here we go ~

lets calculate Molar mass of \({\sf CO_2} \) :

\(\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 12 + 2(16)\)

[ Molar mass of\({\sf \: CO_2 } \)= Molar mass of Carbon + 2×( Molar mass of Oxygen )]

\(\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 12 + 32\)

\(\qquad \sf  \dashrightarrow \: Molar \: \: mass \: \: of \: \: C O _2 = 44 \: g\)

[ i.e 1 mole of \({\sf CO_2} \) weights 44 grams ]

So, by unitary method :

\(\qquad \sf  \dashrightarrow \: 1 \: \: mole \: \: CO_2 = 44 \: \: g\)

\(\qquad \sf  \dashrightarrow \: 4 \: \: moles \: \: CO_2 = (44\times 4) \: \: g\)

\(\qquad \sf  \dashrightarrow \: 4 \: \: moles \: \: CO_2 = 176 \: \: g\)

Therefore, 4 moles of CO2 weights 176 grams

The corresponding measure for the same mercury type is 51,231.76 g (gram) for a change of 1 gal (gallon) unit of a mercury quantity.

This phenomenon is caused by lanthanide contraction and relativistic contraction, which decrease the radius of the outermost electrons, decreasing the metallic bonding in mercury. The volume of mercury falls by 3.59% when frozen, and its density changes from 13.69 g/cm3 while liquid to 14.184 g/cm3 when solid.

Mercury weighs 3.3 x 1023 kg. This mass is stored in 14.6 billion cubic miles of space (60.8 billion cubic km). Mercury's mass and volume are just approximately 0.055 times that of Earth.

Learn more about mercury refer

https://brainly.com/question/24257702

#SPJ1

A gas at STP is heated to 35 degree C. The new pressure will be 2.41 atm.

The pressure of the mass of the gas is directly proportional; to the temperature of the gas.

\(\dfrac{P_1 }{T_1} =\dfrac{P_2}{T_2}\)

Converting the temperature into kelvin

The initial temperature = 35 °C = 35 + 273 K= 308 K

The final temperature = 50 °C =50 + 273 K = 323 K

Initial pressure = 2.3 atm

Final pressure ?

Putting the values in the equation

\(\dfrac{P_1 }{T_1} =\dfrac{P_2}{T_2}\\\\\\{P_2 = \dfrac{P_1 \times T_2}{T_1} \\\\\\\\\\{P_2 = \dfrac{2.3 \times 323 }{308} = 2.41 atm.\)

Thus, the new pressure will be 2.41 atm.

Learn more about Gay-Lussac law

https://brainly.com/question/11387781

#SPJ1

A biochemical compound consisting of an amine group, a carboxyl group, and a side-chain substituent group is called an amino acid.

These organic molecules are the building blocks of proteins and play important roles in the body such as enzyme catalysis, cell signaling, and energy production.

The side-chain substituent group gives each amino acid its unique chemical and physical properties, determining its function and role in protein structure.

There are 20 standard amino acids found in proteins, each with its own specific characteristics. The sequencing of these amino acids determines the primary structure of a protein, which ultimately influences its overall structure and function.

Learn more about amino acids at https://brainly.com/question/31052878

#SPJ11

A biochemical compound consisting of an amine group, a carboxyl group, and a side-chain substituent group is called  amino acid.

Amino acids are the building blocks of proteins and are essential for many biological processes. They play crucial roles in the structure, function, and regulation of cells and tissues. Amino acids have a basic structure that includes an amine group (-NH2), a carboxyl group (-COOH), and a side-chain substituent group.

The side chain can vary, giving different amino acids unique properties. There are 20 common amino acids found in proteins, each with its own distinct chemical characteristics and functions. They can be classified as essential or non-essential, depending on whether the body can produce them or they need to be obtained from the diet. Overall, amino acids are fundamental to the existence and functioning of living organisms.

To know more about Amino acids visit:

https://brainly.com/question/31872499

#SPJ4