and water from the masses.
2.43 g H₂O was vaporized during heating.
The molar mass of H₂O 18.02 g/mol.
How many moles of H₂O are present?
[?] mol H₂O
Keep at least one extra significant figure when reporting your
answer.
mol H₂O
Enter

For the process of dissolving a soluble ionic solid in a sealed container, we would expect the rate of dissolving to be equal to the rate of crystallization of the ions.

When an ionic solid dissolves in a solvent, the solid breaks down into its constituent ions, which then interact with the solvent molecules to form a solution.

In a sealed container, the concentration of ions in the solution will increase over time as more solid dissolves. However, as the concentration of ions increases, the rate at which the solid dissolves will decrease, and the rate at which the ions recombine to form solid will increase.

Eventually, a dynamic equilibrium will be established, where the rate of dissolving is equal to the rate of crystallization.
Therefore, for a sealed container containing a soluble ionic solid, we would expect the rate of dissolving to be equal to the rate of crystallization of the ions, resulting in a dynamic equilibrium.

For more information on crystallization kindly visit to

https://brainly.com/question/30882348

#SPJ11

Answer:

.4586M

Explanation:

It's simple, just devide the mol value by the volume value. So 3.66mol/7.98L=.4586M

The maximum number of moles of SO₃ that can be produced by the reaction of 2.0 mol of S with of O₂ will be 2, two moles.

Moles are the quantity of a material in per unit of solution. It is the SI unit of amount of a substance. The moles can be calculated by dividing the molecular weight of an object with the molecular mass of the substance.

The balanced reaction is

2SO₂ +O₂  →2SO₃

The ratio is 2:1

So if 2.0 mol of sulfur will reaction with 1 mole of oxygen there will be 2 moles of SO₃. The reaction clears the moles of SO₃ in the reaction.

Thus, maximum number of moles of SO₃ will be 2.

To learn more about moles, refer to the link:

https://brainly.com/question/15209553

#SPJ4

when 51.8 and 67.5 are multiplied, the product has three significant figures, and when 51.8 and 67.5 are added, the sum has three significant figures.

The significant figures in multiplying  51.8 and 67.5:

51.8 ×  67.5 = 3496.5 = 3.50  × 10^3

Now according to the rules of significant figures

All non-zero numbers and trailing zeros to the right of the decimal are significant. But 10 and power of ten like in this case its 3 are not significant. So the product has three significant figures.

The significant figures in adding 51.8 and 67.5:

51.8 +  67.5 = 119.5

Now, according to the rules of significant figures, all non-zero digits are significant figures. So the sum has 4 significant figures.

If you need to learn more about significant figures, click here

https://brainly.com/question/11905420?referrer=searchResults

#SPJ4

Answer:

I'm not sure who made this app but someone made it so that people who understand certain topics can help others who are confused about it.

The first blank should be filled with "chemical shift." The chemical shift is the position of a signal on the NMR spectrum, and it is measured in parts per million (ppm). The chemical shift is determined by the magnetic field experienced by the hydrogen atoms in the molecule and is influenced by the surrounding electron density.

The second blank should be filled with "splitting." Splitting is the appearance of a signal on the NMR spectrum and is caused by the spin-spin coupling between neighboring hydrogen atoms. The splitting is based on the formula N+1, where N is the number of equivalent neighboring hydrogen atoms. The splitting pattern gives information about the number and arrangement of hydrogen atoms in the molecule.

The third blank should be filled with "integration." Integration is the area under a signal on the NMR spectrum and is proportional to the number of hydrogen atoms that produce the signal. Integration allows us to determine the relative number of hydrogen atoms in different parts of a molecule and is useful in determining the molecular formula of an unknown compound.

To know more about proton. here

https://brainly.com/question/1481324

#SPJ4

The order of decreasing reactivity towards electrophilic aromatic substitution is as follows: ortho > para > meta.

This is known as the "ortho-para-meta" rule. This is due to the electron-withdrawing effect of the substituents. The ortho and para positions are the least stable due to the presence of a strong electron-withdrawing group.

As a result, they are the most reactive towards electrophilic substitution. The meta position is the most stable due to the presence of an electron-donating group and is the least reactive.

So, the correct order of decreasing reactivity towards electrophilic aromatic substitution is as follows: ortho > para > meta.

For more questions like Electrophilic click the link below:

https://brainly.com/question/17517332

#SPJ4

Answer:

B

Explanation:

The heated atmosphere cause glaciers and ice caps to melt causing the sea level to rise

Answer:

Rising temperatures melt more glaciers and polar ice caps, which add water to the ocean.

Explanation:

Answer:

c

Explanation:

took it

There are 8.78 x 1024 atoms of phosphorus in 7.30 mol of copper (II) phosphate.

The given compound is copper (II) phosphate, which has the molecular formula Cu₃(PO₄)₂.

To determine the number of phosphorus atoms present in 7.30 mol of the compound, we need to use Avogadro's number (6.022 x 1023) and the stoichiometric coefficients of the atoms in the compound.

Let's first find the molar mass of copper (II) phosphate.

Cu₃(PO4)2 = 3Cu + 2PO₄

Cu = 63.55 g/mol

PO₄ = 94.97 g/mol

Total molar mass

= 3(63.55) + 2(94.97)

= 380.7 g/mol

Now we can find the number of moles of copper (II) phosphate in 7.30 mol.

Moles of Cu₃(PO₄)₂ = mass/molar mass

= 7.30 mol x 380.7 g/mol

= 2778.81 g

Next, we can find the number of formula units of Cu₃(PO₄)₂ that corresponds to 7.30 mol.

N = (moles of Cu₃(PO₄)₂) x Avogadro's number

= 7.30 mol x 6.022 x 1023

= 4.39 x 1024 formula units

Finally, we can find the number of phosphorus atoms in 4.39 x 1024 formula units of Cu₃(PO₄)₂.

Number of phosphorus atoms

= 4.39 x 1024 x 2 x 1

= 8.78 x 1024 atoms (since each formula unit contains 2 phosphorus atoms)

Therefore, there are 8.78 x 1024 atoms of phosphorus in 7.30 mol of copper (II) phosphate.

Learn more about the Avogadro's number from the given link-

https://brainly.com/question/859564

#SPJ11

Answer: Yes

The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs.

Answer:

allimorales is correct

Explanation:

Answer:

well done. I hope it's helpful

Explanation:

density= mass/v

density of Al= 40.5 gram/ 18mL

= 2.25 gr/mL

Answer:

most rocks are a mixture of crystals of one or more minerals, or organic matter

Answer:

a ) 2Na +Cl2 ---->2NaCl

b) 63.8g

Explanation:

please let me know if the 2nd answer is right than I can explain it to u how I did it

When two amino acids undergo condensation to form a dipeptide, the byproduct of the reaction is water.

Condensation occurs through the removal of a hydroxyl group (-OH) from the carboxyl group of one amino acid and a hydrogen atom (-H) from the amino group of the other amino acid. The resulting chemical reaction leads to the formation of a peptide bond between the two amino acids, joining them together.

The release of water during this condensation or dehydration synthesis reaction allows for the formation of a dipeptide, which serves as the building block for larger polypeptides and proteins.

Learn more about Condensation, here:

https://brainly.com/question/1287204

#SPJ4

(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

Explanation:

We can assume that room temperature is 25 °C.

The melting point of a pure substance is the temperature at which it changes state from solid to liquid. The metling point of our substance is -187 °C. Since the room temperature is 25 °C we can say that it won't be solid. At least it will be liquid.

The boiling point of a pure substance is the temperature at which it changes state from liquid to gas. The boiling point of our substance is 42 °C. At room temperature we are under that temperature, so it won't convert into a gas. It will remain as a liquid also.

Since room temperature is between the boiling and melting point of our substance, the physical state is liquid.

Answer: liquid

Answer:

The electronegativity difference of the atoms in the bond.

Explanation:

Carbon is electropositive while Oxygen is highly electronegative, hence highly polar due to strong intermolecular forces.

The molecule is not symmetrical because it's dipole moments don't cancel out.

Answer:Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.

Explanation:This is not mine write it in your own words.

The rate of heat absorbed from the combustion chamber (MW) in this power plant is 160 MW, heat is rejected to the cooling lake at a rate of 100 MW.

The rate of heat absorbed from the combustion chamber (MW) in this power plant is 150 MW. A power cycle is defined as a set of processes that occur in a closed system, which produces a net amount of work. The heat engine is an example of a power cycle. It is a device that transforms thermal energy into mechanical energy, which in turn is used to generate electricity.

Thermal efficiency is defined as the ratio of the work produced by a heat engine to the heat input. It is typically expressed as a percentage. The formula for thermal efficiency is as follows:

η = (W_net/Q_H) × 100%,

where η is the thermal efficiency,

W_net is the net work produced, and

Q_H is the heat input.

Using the formula, we have:η = 40%Q_H = 100 MW

Now, we can calculate the network produced as follows:η = (W_net/Q_H) × 100%40%

= (W_net/ Q_H) × 100%W_net

= 0.4 × Q_HW_net

= 0.4 × 100W_net

= 40 MWSince the heat rejected is equal to the heat input minus the net work produced, we have:

Q_L = Q_H - W_netQ_L = 100 - 40Q_L = 60 MW

Therefore, the rate of heat absorbed from the combustion chamber (MW) in this power plant is equal to the rate of heat input, which is Q_H.Q_H = 100 + Q_LQ_H = 100 + 60Q_H = 160 MW

Therefore, the rate of heat absorbed from the combustion chamber (MW) in this power plant is 160 MW.

To know more about closed system please refer:

https://brainly.com/question/13453484

#SPJ11

Answer:

c. iron

Explanation:

iron's atomic number is 26

Answer:

thermal shock

Explanation:

the temperatures inside the glass jar should have continued to increase over time. Internal stresses due to uneven heating. This is also known as “thermal shock”.

In general, the thicker the glass, the more prone it will be to breaking due to the immediate differences in temperature across the thickness of glass.

Borosilicate glass is more tolerant of this, as it has a higher elasticity than standard silicon glass.

You may also note that laboratory test tubes and flasks are made with thinner walls, and of borosilicate glass, when designated for heating.

Answer:

2.8 X 10-5s in standard notation is 28-5s

Explanation:

Multiply 2.8 by 10

This means that they are true for all possible combinations of truth values for p, q, and r

a) (p∧q)→p

p | q | p∧q | p→p

-- | -- | -- | --

T | T | T | T

T | F | F | T

F | T | F | T

F | F | F | T

b) p→(p∨q)

p | q | p∨q | p→(p∨q)

-- | -- | -- | --

T | T | T | T

T | F | T | T

F | T | T | T

F | F | F | T

c) ¬p→(p→q)

p | ¬p | p→q | ¬p→(p→q)

-- | -- | -- | --

T | F | T | F

F | T | F | T

d) (p∧q)→(p→q)

p | q | p∧q | p→q | (p∧q)→(p→q)

-- | -- | -- | -- | --

T | T | T | T | T

T | F | F | T | T

F | T | F | T | T

F | F | F | T | T

10. [p∧(p→q)]→q

p | q | p→q | p∧(p→q) | [p∧(p→q)]→q

-- | -- | -- | -- | --

T | T | T | T | T

T | F | F | F | F

F | T | T | F | F

F | F | T | F | F

22. (p→q)∧(p→r) and p→(q∧r)

p | q | r | p→q | p→r | (p→q)∧(p→r) | p→(q∧r)

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | F | T | F

T | F | F | T | F | T | F

F | T | T | T | T | T | T

F | T | F | T | T | T | F

F | F | T | T | F | T | F

F | F | F | T | F | T | F

23. (p→r)∧(q→r) and (p∨q)→r

p | q | r | p→r | q→r | (p→r)∧(q→r) | (p∨q)→r

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | T | T | T

T | F | F | T | T | T | T

F | T | T | T | T | T | T

F | T | F | T | T | T | T

F | F | T | T | T | T | T

F | F | F | T | T | T | F

24. (p→q)∨(p→r) and p→(q∨r)

p | q | r | p→q | p→r | (p→q)∨(p→r) | p→(q∨r)

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | T | T | T

T | F | F | T | T | T | T

F | T | T | T | T | T | T

F | T | F | T | T | T | T

F | F | T | T | T | T | T

F | F | F | T | T | T | F

As you can see, all of the conditional statements are tautologies.

This means that they are true for all possible combinations of truth values for p, q, and r

Learn more about values with the given link,

https://brainly.com/question/11546044

#SPJ11

a) (p∧q)→p  is shown as a tautology by using truth tables

b) p→(p∨q)   is shown as a tautology by using truth tables

c) ¬p→(p→q)   is shown as a tautology by using truth tables

d) (p∧q)→(p→q)   is shown as a tautology by using truth tables

This can be explained as meaning that  they are true for all possible combinations of truth values for p, q, and r

a)

for (p∧q)→p

p | q | p∧q | p→p

-- | -- | -- | --

T | T | T | T

T | F | F | T

F | T | F | T

F | F | F | T

b)

p→(p∨q)

p | q | p∨q | p→(p∨q)

-- | -- | -- | --

T | T | T | T

T | F | T | T

F | T | T | T

F | F | F | T

c) ¬p→(p→q)

p | ¬p | p→q | ¬p→(p→q)

-- | -- | -- | --

T | F | T | F

F | T | F | T

d) (p∧q)→(p→q)

p | q | p∧q | p→q | (p∧q)→(p→q)

-- | -- | -- | -- | --

T | T | T | T | T

T | F | F | T | T

F | T | F | T | T

F | F | F | T | T

10. [p∧(p→q)]→q

p | q | p→q | p∧(p→q) | [p∧(p→q)]→q

-- | -- | -- | -- | --

T | T | T | T | T

T | F | F | F | F

F | T | T | F | F

F | F | T | F | F

22. (p→q)∧(p→r) and p→(q∧r)

p | q | r | p→q | p→r | (p→q)∧(p→r) | p→(q∧r)

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | F | T | F

T | F | F | T | F | T | F

F | T | T | T | T | T | T

F | T | F | T | T | T | F

F | F | T | T | F | T | F

F | F | F | T | F | T | F

23.

for   (p→r)∧(q→r) and (p∨q)→r

p | q | r | p→r | q→r | (p→r)∧(q→r) | (p∨q)→r

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | T | T | T

T | F | F | T | T | T | T

F | T | T | T | T | T | T

F | T | F | T | T | T | T

F | F | T | T | T | T | T

F | F | F | T | T | T | F

24.

(p→q)∨(p→r) and p→(q∨r)

p | q | r | p→q | p→r | (p→q)∨(p→r) | p→(q∨r)

-- | -- | -- | -- | -- | -- | --

T | T | T | T | T | T | T

T | T | F | T | T | T | T

T | F | T | T | T | T | T

T | F | F | T | T | T | T

F | T | T | T | T | T | T

F | T | F | T | T | T | T

F | F | T | T | T | T | T

F | F | F | T | T | T | F

In conclusion, we see that all of the conditional statements are tautologiesand  that they are true for all possible combinations of truth values for p, q, and r

Learn more about conditional statement at:

https://brainly.com/question/27839142

#SPJ4

The compound names and their prefixes are:

Molecular compounds are named using prefixes to indicate the number of atoms of each element in the compound. The prefix for one is not used for the first element in the compound. For example, CO2 is carbon dioxide, where "di-" indicates the two oxygen atoms.

The full name of the compound is the name of the first element (using its elemental name), followed by the name of the second element (also using its elemental name) with the "-ide" suffix added, and the appropriate prefixes used to indicate the number of atoms of each element.

Learn more on molecular compounds here: https://brainly.com/question/14446156

#SPJ1

Answer:

whats the theisis

Explanation:mmm ok

Table salt solution is neutral in nature. Lemon juice solution is more acidic in nature and soap solution is slightly basic in nature.

Any combination of one or more solutes that have been dissolved in a solvent is referred to as a solution. To create a homogenous mixture, a solute must dissolve in a solvent. To create a homogenous mixture, a solute must dissolve in a solvent.

The solution of soap is alkaline. Alkaline has a pH greater than 7. While lemon juice has an acidic pH of roughly 2, during metabolism it actually becomes alkaline and has a pH much above 7.

Sodium chloride, or table salt, is the original "salt." A neutral salt is sodium chloride, which is produced by neutralizing sodium hydroxide and hydrochloric acid.

Thus, In this way we can differentiate between table salt solution lemon juice and soap solution.

To learn more about the solution,follow the link;

https://brainly.com/question/30665317

#SPJ9

Answer:

The answer I believe is B. Erosion

Explanation:

Just sounds better than all the other choices.

Answer:

erosion b

Explanation:

it breaks down the rocks i remembered this in 4th grade :)