A large portion of metabolic energy arises from the biological combustion of glucose:
C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + 6H₂O(g)
(a) If this reaction is carried out in an expandable container at 37°C and 780. torr, what volume of CO₂ is produced from 20.0 g of glucose and excess O₂?

Answer:

A. Convert the 200 mol of water to kilograms of water.

Explanation:

To find the molality of 10mol of NaCl in 200mol of water, convert the 200mol of water to kilograms of water.

Molality is one of the several ways of measuring concentration of a solute in a solvent;

 Molality  = \(\frac{number of moles of solute}{mass of solvent}\)

The example of a reaction to which Markovnikov's rule applies is: CH₂=CH-CH₂-CH₃ + HBr → CH₂Br-CH₂-CH₂-CH₃

In this reaction, the hydrogen atom from HBr adds to the carbon atom with the fewer alkyl substituents (less substituted carbon), while the bromine atom adds to the carbon atom with more alkyl substituents (more substituted carbon). This follows Markovnikov's rule, which states that in the addition of a protic acid (such as HBr) to an asymmetrically substituted alkene, the hydrogen atom adds to the less substituted carbon and the other atom adds to the more substituted carbon.

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Explanation:

cl2 = 50/71

mole of cl2 = 0.704

no.of molecules = mole × avagadro no.

no of molecules = 0.704× 6.022×10²³

no. of molecules = 4.23×10²³

Answer:

C6H12O6+6O2=6Co2+6H2o

The balanced chemical equation for the reaction of glucose (C₆H₁₂O₆) with oxygen gas to produce carbon dioxide gas and water vapor is C₆H₁₂O₆  + 6O₂ → 6CO₂ + 6H₂O

The balanced chemical equation is the equation in which the number of atoms on the left hand side that is reactant side is equal to the number of atoms on the right hand side that is product side in an equation.

The balanced chemical equation is:

C₆H₁₂O₆  + 6O₂ → 6CO₂ + 6H₂O

Thus, from the above conclusion we can say that The balanced chemical equation for the reaction of glucose (C₆H₁₂O₆) with oxygen gas to produce carbon dioxide gas and water vapor is C₆H₁₂O₆  + 6O₂ → 6CO₂ + 6H₂O

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1) Convert moles of Br2 to grams

The molar mass of Br2 is 159.81 g/mol.

1 mol of Br2 is equal to 159.81 g Br2.

Answer:

i think it is 0.002831392

Explanation:

pOH = 14 - 11.452 = 2.548

pOH = -log(OH)

2.548 = -log(OH)

10^(-2548) = 0.002831392

Washing clothes

linking a brake pedal to the brake pads at the wheels of a car

dissolving sugar

painting a wall

Explanation:

Answer:

Sublimation is a critical component for the water cycle in cold climates where water in the solid form or ice is prevalent because sublimation which is the transformation of a solid substance to a liquid without passing through the liquid phase including when ice transforms directly into vapors, readily takes place when the relative humidity is low and the wind is dry, which are conditions that can be found combined mainly in cold climates

Explanation:

Answer:

This question is incomplete and lacks options, the complete part and the options are:

Which of the following variables should Sarah change from one group of chamomile to the next?

A. the location of the plants

B. the height of the plants

C. the type of plants

D. the amount of water she gives the plants

The answer is A

Explanation:

This question is asking for the INDEPENDENT VARIABLE in the experiment. The independent variable of an experiment is the variable that is changed or manipulated by the experimenter in order to bring about a response.

In this experiment where Sarah wants to know where in her garden chamomile plants would grow the best. She hypothesizes that chamomile will grow best in the corner of the garden that gets the most sunlight. However, to test this hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. The variable that Sarah can change in the several groups of chamomile (independent variable) is the LOCATION OF THE PLANTS.

Note that, "where" is a question of location.

Answer:

The answer is C

Explanation:

Answer: This is simple. It continually sends sympathetic impulses to the smooth muscles in the arteriole walls.

To Explain: Keeping them in a state of tonic contraction, This will help maintain the peripheral resistance associated with normal blood pressure.

Hope This Helps!

Answer:

sorry I don't know the answer hope you understand

The proper order is Na > Mg > Si > P > Ar. As a result of the valence electrons' low nucleostatic attraction, sodium (Na) has the biggest atomic radius.

The electrons' orbitals get bigger and bigger as we go from top to bottom, increasing the atomic size.S and Ar are hence real. S is the largest element on the periodic table since it is on the left. Na has the most atoms of any of the other elements mentioned. Due to its position to the right of silicon, phosphorus will have a lower atomic radius for an uncharged atom than silicon. Due to its position to the right of silicon, phosphorus will have a lower atomic radius for an uncharged atom than silicon. The atomic radius grows in a group from top to bottom and decreases across a period, as seen in the figures below. The smallest element is therefore helium, whereas the largest is francium.

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Answer:

3966.82 J

Explanation:

q=sm∆T

q=73×13×4.18

the specific heat for water is 4.18

Answer:

\(\boxed {\boxed {\sf 39,668.2 \ Joules}}\)

Explanation:

We are given the mass and change in temperature, so we must use this formula for heat energy:

\(q=mc \Delta T\)

The mass is 73 grams. Water's specific heat is 4.18 J/g × °C. Let's calculate the change in temperature

Now we know all the variables and can substitute them into the formula.

\(m= 73 \ g \\c= 4.18 \ J/g* \textdegree C \\\Delta T= 13 \ \textdegree C\)

\(q= (73 \ g )(4.18 \ J/g*\textdegree C)(13 \textdegree C)\)

Multiply the first numbers together. The grams will cancel.

\(q= 3051.4 \ J/\textdegree C (13 \textdegree C)\)

Multiply again. This time, the degrees Celsius cancel.

\(q= 39668.2 \ J\)

39,668.2 Joules of heat energy are absorbed.

The expression relating the concentration of a gas in \(\mu g/m^-^3 (X)\) with the concentration expressed in ppm (Y) is \(Y = (X/MW) * 10^6 / V\)

To derive an expression relating the concentration of a gas in \(\mu g/m^3 (X)\) with the concentration expressed in ppm (Y), we can use the ideal gas law. The ideal gas law states that \(PV = nRT\), where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. Rearranging the equation, we have \(n = PV/RT\)

To convert the concentration from \(\mu g/m^-^3 (X)\) to moles (n), we divide X by the molecular weight (MW) of the gas. Thus, \(n = X/MW\)

Combining the two equations, we have \(X/MW = PV/RT\)

Since the concentration expressed in ppm (Y) is the same as the number of moles per million parts of air, we can write \(Y = n * 10^6 / V\)

Substituting \(n = X/MW\), we get \(Y = (X/MW) * 10^6 / V\)

Therefore, the expression relating the concentration of a gas in \(\mu g/m^3 (X)\) with the concentration expressed in ppm (Y) is:

\(Y = (X/MW) * 10^6 / V\)

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Complete question is:

Using the ideal Gas Law, derive an expression relating the concentration of a gas \(\mu_g^-^3 (X)\) with the concentration expressed in ppm (Y). (10 pts) Hint:- Ideal gas law \(PV= nRt -R = 0.0821 atm mol^-^1\)  −MW=X= molecular weight

Litmus is an example of an indicator, a substance that changes color depending on its pH (pH is a measure of the concentration of protons, or H+ ions). In the Titration Gizmo™, you will use indicators to show how acids are neutralized by bases, and vice versa.

To begin, check that 1.00 M NaOH is selected for the Burette, Mystery HBr is selected for the Flask, and Bromthymol blue is selected for the Indicator.

Calculate: Concentration is measured by molarity (M), or moles per liter. Brackets are also used to symbolize molarity. For example, if 0.6 moles of HNO3 are dissolved in a liter of water, you would say [HNO3] = 0.6 M.

Because HNO3 is a strong acid, it dissociates almost completely in water. That means the concentration of H+ is very nearly equal to that of HNO3.What is [H+] if [HNO3] is 0.01 M? 0.01 M

The pH of a solution is equal to the negative log of H+ concentration: pH = –log[H+]

Describe: The equation for the reaction of nitric acid (HNO3) and sodium hydroxide (NaOH) is shown on the bottom right of the Gizmo.

Measure: A titration can be used to determine the concentration of an acid or base by measuring the amount of a solution with a known concentration, called the titrant, which reacts completely with a solution of unknown concentration, called the analyte. The point at which this occurs is called the equivalence point.

Explain: A titration curve is a graph of pH vs. volume of titrant. The graph at right shows a typical titration curve for the titration of a strong acid by a strong base. (A strong base is one that has relatively high dissociation in water.)

According to theBrønsted-Lowry definition, an acid is a substance that is capable of donating a proton to another substance. A base is a substance that accepts protons. When an acid and a base are combined, the acid is neutralized as the base accepts the protons produced by the acid.One way to determine if a solution is acidic or basic is to use litmus paper, as shown above. There are two types of litmus papers: red and blue.How does litmus paper indicate an acid? Both strips turn red.

This problem is stating a situation in which a solid object is fully immersed in a liquid and the buoyant force is larger that its weight, so that you need to discuss whether this is possible or not.

In general terms, it is necessary to keep in mind that when the buoyant force is larger than its weight, the object will float. On the other side, when the buoyant force is smaller than the weight, then the object will sink.

It means that it could be possible to have this scenario under specific conditions. Now, the Archimedes' principle can be applied with the following version:

\(F_B+W>m_{obj}*a\\\\\rho _{fluid}*V*g+m_{obj}*g>m_{obj}*a\\\\\rho _{fluid}*V-m_{obj}>m_{obj}*a\)

It means that the object can move down the liquid if has a significant acceleration (could be external), even when the buoyant force is larger than the weight

Learn more:

The time taken for the light from the sun to reach the earth is 8.33 minutes.

Convert the distance from Earth to the Sun from kilometres to meters:

1.5 x \(10^{8}\) km = 1.5 x \(10^{8}\) x \(10^{3}\) m = 1.5 x \(10^{11}\) m

Time = Distance/ Speed = 1.5 x \(10^{11}\) m/ (3.0 x \(10^{8}\) m/s) = 0.5 x \(10^{3}\) s

To convert this time to minutes, divide by 60 (the number of seconds in a minute):

Time = 0.5 x \(10^{3}\) s / 60 s/min = 8.333 min

So, it takes about 8.333 minutes for light from the Sun to reach Earth.

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Answer:

What are the pros of coal energy? ans :

Huge Global Reserves.

Not an Intermittent Energy Source.

Reliable Fuel.

Inexpensive Energy Source.

Minimal Wastes, Consumable Byproducts

Smokeless Alternatives

Compatible With Other Energy Sources.

Answer:

B. Increase the mass of one of the objects.

E. Decrease the distance between the objects.

Explanation:

To effect an increase in the gravitational force between two objects, the mass of both objects should be increased and the distance between them reduced.

This is derived from the Newton's law of universal gravitation:

Therefore, if the mass of the two bodies are increased and the distance between them reduced, the gravitational force of attraction will increase.

Answer:

E. Decrease the distance between the objects

B. Increase the mass of one of the objects

Explanation:

Answer:Heart muscle is a type of muscle found in the walls of the heart. It works involuntarily. This mechanism is due to the internal stimulation of the heart, and there are two. These are atrio-ventricular and sinoatrial nodes.

Explanation:Thanks for the score, have a nice day

The muscle tissue of the heart is called cardiac muscle

Answer: the heavy ball of a demolition machine is storing energy when it is held at an elevated position.

Which has potential energy

Explanation:

Answer: hope u dont mind i think ash answer ur question just imagine i had the correct answer woah UwU

Explanation:

Answer:

A control group is someone who takes control over something so a tyrant or a dictator.

Explanation:

If this isnt what your looking for let me know, there wasnt alot of context.

Answer: a group that helps you control something

Explanation: like a surport group but for addictions maybe

Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions. It's common to see ionic compounds formed by metal and nonmetal because you can note that the electronegativity difference between the elements of these compounds is greater than or equal to 1.7.

In the group of answer choices, you can see various things about Mg - Cl because it's the only answer that contains a metal (Mg) and nonmetal (Cl), their difference electronegativity is 1.8 (The electronegativity of Cl is 3.0 and for Mg is 1.2, so 3.0 - 1.2 = 1.8, it's greater than 1.7. The electronegativities can be found in the periodic table). Mg has a positive charge (+2) and Cl has a negative charge (-1).

All these characteristics is telling us that the bond Mg - Cl is the more ionic in this case. The answer is Mg - Cl.

To determine the number of moles of the unknown gas present in the balloon, we can use the formula:

Number of moles = Mass of the gas / Molar mass of the gas

In this case, the mass of the gas is given as 94.2 grams and the molar mass is given as 44.01 g/mol. Substituting these values into the formula, we can calculate the number of moles:

Number of moles = 94.2 g / 44.01 g/mol

The result will give us the number of moles of the unknown gas present in the balloon.

The formula to calculate the number of moles is derived from the concept of molar mass, which is the mass of one mole of a substance.

By dividing the mass of the gas by its molar mass, we can determine how many moles of the gas are present. In this case, dividing 94.2 grams by 44.01 g/mol gives us the number of moles of the unknown gas in the balloon.

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(alt + F4) might be the answer you are looking

Explanation:

I'm not exactly sure how I came up with this answer but it is for sure the answer

Okay, let's go through each option step-by-step:

(a) 140 gm N2 & 35 g H2

since the stoichiometry is 2NH3 : 3H2 : N2, for every 2 moles of NH3 produced, 3 moles of H2 and 1 mole of N2 react.

So, 140 gm N2 = 10 moles N2

35 gm H2 = 3 moles H2

Together they can produce 10/2 = 5 moles NH3. So this option produces the same amount of NH3.

(b) 18 g H2 & 52 g N2

H2 has 3 moles per 35 g so 18 g H2 = 2 moles H2

52 g N2 = 4 moles N2

Producing 2 * (2/3) = 4/3 = 2 moles NH3. This is less than options a and c.

(c) Total 20 moles of mixture having N2 and H2 in stoichiometric ratio.

With 20 moles total and in stoichiometric ratio, the moles of each will produce 2 moles of NH3. So this option also produces the same.

(d) 136 gm of mixture having mass fraction of H2 = 6/34

* Total mass = 136 g

* Mass fraction of H2 = 6/34 = 0.18

* So mass of H2 = 0.18 * 136 = 24 g

* Mass of 24 g H2 = 2 moles H2

* Remaining mass = 136 - 24 = 112 g is N2

* 112 g N2 = 8 moles N2

* Together 2 moles H2 and 8 moles N2 can produce 2 * (2/3) = 4/3 = 2 moles NH3.

This is less, so this option does not produce the same amount.

In summary, options a and c satisfy the criteria of producing the same amount (i.e. 5 moles) of NH3.

Let me know if this helps explain the problem! I can provide more details if needed.

The universe as we know it is home to several galaxies, planets and stars. Hydrogen and helium were the most abundant elements present in the early universe. Heavier elements like carbon, oxygen, phosphorus and even metals were later formed through various fusion reactions in stars.

Nevertheless, matter makes up only 5% of the universe. Nearly 95% is referred to as 'dark matter' which is a subject of research in many scientific communities.

Answer: A) 5%

First, we need to make the exponent of 10 the same for both.

So let's transform 6.5500 x 10^5 into some number x 10^3.

For this, we need to move the dot to the right, some places where it gives the number 3. In this case, 2 places.

655.00 x 10^3

now we can sum the numbers

8.6500 x 10^3 + 655.00 x 10^3 = 663.65 x 10^3

now we need to transform this number into scientific notation. For this, must have only one number before the dot(on the left side of the dot). We will move the dot to the left, 2 places:

6.6365 x 10^5

Answer: 6.6365 x 10^5

Cornelis Drebbel designed what is believed to be the world's first air conditioning unit, it is work with the system functioned by employing a process called evaporative cooling, which works on the principle of heat absorption by water evaporation.

Drebbel's invention consisted of a wooden box filled with water, a system of rotating paddles, and a fan driven by a clockwork mechanism. The rotating paddles would splash water onto the walls of the wooden box, creating a thin film of water on the surface. As air was drawn into the box, the water would evaporate, absorbing the heat from the incoming air and causing the air temperature to drop. The cooled air was then circulated throughout the room by the clockwork-driven fan.

This early air conditioning unit was able to maintain a comfortable temperature and humidity level in indoor spaces by taking advantage of the natural cooling properties of water. Although the technology was quite rudimentary compared to modern air conditioning systems, Drebbel's invention laid the groundwork for future developments in environmental control and is an essential part of the history of air conditioning. So therefore Cornelis Drebbel designed what is believed to be the world's first air conditioning unit by evaporative cooling process, which works on the principle of heat absorption by water evaporation.

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The number and intensity of CO stretching modes in the IR spectra can be used to distinguish between cis-M(CO)2X2 and trans-M(CO)2X2.

The IR spectra of molecules can offer precious records about their systems. Especially, the CO stretching location of the IR spectra is informative for distinguishing between cis-M(CO)2X2 and trans-M(CO)2X2.

Every CO ligand inside the molecule contributes one stretching mode to the IR spectrum. For cis-M(CO)2X2, there are two feasible preparations of the CO ligands: cis-association, where the CO ligands are on the equal aspect of the molecule, and trans-arrangement, where the CO ligands are on opposite sides of the molecule.

The cis-arrangement will result in a symmetric CO stretching mode and an uneven CO stretching mode. Then again, the trans-arrangement will result in degenerate symmetric CO stretching modes and degenerate uneven CO stretching modes.

Therefore, with the aid of reading the wide variety and intensity of the CO stretching modes inside the IR spectra, one could distinguish between cis-M(CO)2X2 and trans-M(CO)2X2.

Particularly, cis-M(CO)2X2 will show off  CO stretching modes with exclusive frequencies and intensities, at the same time as trans-M(CO)2X2 will show 4 CO stretching modes with the same frequency and intensity.

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