what volume of 0.162 mna3po4 solution is necessary to completely react with 91.4 ml of 0.104 m cacl2 ?

To produce 31.38 mol/h of the desired product with 0.6% water vapor, the flow rate of stream B (enriched air saturated with water vapor) needed would be 158.29 mol/h.

To determine the flow rate of stream B needed, we can set up a calculation based on the desired product composition.

First, we calculate the total moles of water vapor in the desired product:

31.38 mol/h * 0.6% = 0.18828 mol/h

Next, we determine the moles of water vapor in stream A:

7996 mol/h * 21% * 0.01 = 1679.16 mol/h

To achieve the desired product composition, the additional moles of water vapor needed will be the difference between the desired moles and the moles in stream A:

0.18828 mol/h - 1679.16 mol/h = -1678.97 mol/h

Since the result is negative, it means that stream A has more water vapor than required. Therefore, we need to compensate for the excess by subtracting it from stream B.

Finally, we calculate the flow rate of stream B needed:

1678.97 mol/h - 0.0389 * 57.47/100 * 158.29 mol/h = 158.29 mol/h

Therefore, a flow rate of 158.29 mol/h of stream B is required to produce 31.38 mol/h of the desired product with 0.6% water vapor.

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Answer:

carbon nitrogen and oxygen

Answer:

WEATHER!

Explanation:

Weather can cause an unexpected temperature change! :) Hope this helps!

Answer:

The distance covered by the body per unit time is called speed.

A distance travelled by the body per unit time in a fixed direction is called velocity

I hope this help u:)

Answer:

Force is an external agency that changes or tends to change the state of a body from rest to motion or from motion to rest is called force

Explanation:

The distance covered by a body in a unit time is called speed

Each reaction has its own characteristics which can be determined from the reactants and products

Every chemical reaction involves a compound consisting of reactants and products

Reactants are compounds that react and form new compounds called products

There are several forms of reactions that can occur, including single replacement, double replacement, synthesis, decomposition, etc.

A. substances after the arrow are called 1 products

The product compounds in this reaction are: CO₂ + H₂O

B. which substances are the reactants : sodium + water

and The product compounds : sodium hydroxide + hydrogen gas

Reaction

2Na(s) + 2H₂O → 2NaOH(aq) + H₂(g)

C. Mg + Fe₂O₃ → Fe + 3 MgO is an example of single replacement :one element replaces the other elements of a compound to produce new elements and compounds

D. Ca(OH)₂ + Al₂(SO₄)₃ → CaSO₄ + Al(OH)₃  is an example of double replacement : there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

E. PbSO₄->PbSO₃ + O₂ is an example of decomposition : One compound breaks down into 2 components

F.C₂H₄ + O₂ → CO₂ + H₂O is an example of combustion : when Oxygen combines with hydrocarbon

Answer:

24

Explanation:

In the novel "A Separate Peace" by John Knowles, Gene changes his mind about enlisting in the war when he realizes that Finny, his close friend, is returning. This change of mind can be interpreted as a shift in Gene's perspective and priorities.

Initially, Gene's decision to enlist in the war could be seen as driven by a sense of duty, honor, or the desire to prove himself. However, upon learning about Finny's return, Gene experiences a change of heart. It suggests that his friendship with Finny holds more significance to him than the pursuit of external validation or conformity to societal expectations.

This change of mind may reflect the growth of Gene's character throughout the novel. It signifies a realization of the value of personal relationships and the importance of emotional connections over external achievements.

Gene's decision to prioritize his friendship with Finny over enlisting in the war highlights his desire for a sense of belonging, camaraderie, and a more meaningful purpose in life.

Furthermore, this change of mind could also indicate a sense of guilt or remorse within Gene. The story explores themes of jealousy, competition, and the consequences of destructive impulses.

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Answer:

Potassium (K)

Explanation:

The element with oxidation number of +1 is potassium.

Every element in the first group on the periodic table has an oxidation number of +1.

Answer:

A. Distance = 18 m

    time = 2 hr

    speed = 9 m/hr

Explanation:

Speed is the same thing as velocity.

Velocity = distance/time

18m/2hr = 9m/hr

For choice B, the numbers are right, but the units are mixed (minutes were changed to hours)

Answer: I don't have the ability to conduct physical experiments or obtain solutions. However, I can provide you with some general information about the properties of CoCl2.6H2O in EtOH and H2O.

Cobalt chloride hexahydrate (CoCl2.6H2O) is a crystalline solid that is soluble in both water and ethanol. When dissolved in water, it forms a pink-colored solution due to the presence of hydrated cobalt ions. In contrast, when dissolved in ethanol, it forms a blue-colored solution due to the formation of a complex between cobalt ions and ethanol molecules.

The addition of CoCl2.6H2O to water or ethanol should result in the formation of a homogenous solution with a characteristic color. The color of the solution will depend on the solvent used and the concentration of the CoCl2.6H2O solution.

Sorry this question is incomplete.

The molarity of the \(H_2O_2\) solution is 5.885 M.

To calculate the molarity of a solution, we need to know the number of moles of solute (in this case, H2O2) per liter of solution.

First, we need to determine the density of the solution. Since the percentage by mass is given, we can assume that 100 g of solution contains 20 g of H2O2 and 80 g of water. The density of water is 1 g/mL, so the volume of water in 100 g of solution is 80 mL. The total volume of the solution is therefore 100 mL or 0.1 L.

Next, we need to determine the number of moles of H2O2 in 20 g. The molar mass of H2O2 is 34.0147 g/mol, so 20 g of H2O2 is equal to 20/34.0147 = 0.5885 mol.

Finally, we can calculate the molarity of the solution by dividing the number of moles of H2O2 by the total volume of the solution in liters:

Molarity = 0.5885 mol / 0.1 L = 5.885 M

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The pH of the solution is determined by the hydrogen ion concentration. The pH of the solution with 1.5 M ammonia and 0.50 M hydrochloric acid is 8.77.

The potential of the hydrogen ion in the solution is called pH which determines the basicity and acidity of the solution.  

Given,

The molar concentration of 500 mL ammonia = 1.5 M

The molar concentration of 500 mL hydrochloric acid = 0.50 M

Kb (NH₃) = 1. 8 x 10⁻⁵

First, pOH is calculated as,

pOH = pKb + log [NH₃][HCl]

= - log 1. 8 x 10⁻⁵ + log [1.5][0.50]

= - log 1. 8 x 10⁻⁵ + log [3]

= 4.744 + 0.477

= 5.221

Now, pH is calculated from pOH as,

pH = 14 - pOH

= 14 - 5.221

= 8.77

Therefore, 8.77 is the pH.

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5'-capping, 3'-poly(a) tail addition, splicing contains the three posttranscriptional modifications often seen in the maturation of mRNA in eukaryotes.

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Answer: Electrolysis is passing an electric current through a liquid containing ions so that decomposition reaction takes place.

Electrolysis is passing an electric current through a liquid containing ions so that decomposition reaction takes place.When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode.

Electrolysis is passing an electric current through a liquid containing ions so that decomposition reaction takes place.When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode.The reaction for decomposition of water into oxygen and hydrogen is as follows:

Electrolysis is passing an electric current through a liquid containing ions so that decomposition reaction takes place.When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode.The reaction for decomposition of water into oxygen and hydrogen is as follows:2H2O(l) -------> 2H2(g) + O2(g)

Answer:

Silicon

Explanation:

When viewing the periodic table of elements and locating atomic number 14, you will find that the element present is Silicon (Si), of which is within the metalloid elemental group.

The equilibrium constant for the reaction brcl(g) ⇌ 1/2 br2(g) + 1/2 cl2(g) is 232/\(x^{2}\), where x is the concentration of BrCl at equilibrium.

The equilibrium constant for the reaction of bromine with chlorine to form bromine monochloride is 58.0 at a certain temperature, given by the equation \(br_{2}\)(g) + \(Cl_{2}\)(g) ⇌ 2brcl(g). To find the equilibrium constant for the reaction brcl(g) ⇌ 1/2 \(br_{2}\)(g) + 1/2 \(Cl_{2}\)g), we can use the following equation:
K' = ([BrCl]/([\(br_{2}\)]/2)([\(Cl_{2}\)]/2))
where K' is the equilibrium constant for the second reaction, and [BrCl], [\(br_{2}\)], and [Cl2] are the concentrations of the species at equilibrium. Using the equilibrium constant for the first reaction (K = 58.0) and the stoichiometry of the two reactions, we can write:
K = \([BrCl]^2\)/([\(br_{2}\)][\(Cl_{2}\)])
Simplifying, we get:
K' = 4K/([\(br_{2}\)][\(Cl_{2}\)])
Substituting the value of K (58.0) and the appropriate concentrations at equilibrium, we get:
K' = 4(58.0)/([(1/2)x]([1/2]x)) = 232/\(x^{2}\)

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The complete question is :

the equilibrium constant for the reaction of bromine with chlorine to form bromine monochloride is 58.0 at a certain temperature. br2(g) cl2(g) 2brcl(g) what is the equilibrium constant for the following reaction? brcl(g) 1/2 br2(g) 1/2 cl2(g)

The wavelength of the radiation : λ=5.792 x 10⁻⁸ m = 5.792 x 10⁻⁶ cm

Region of Ultraviolet

Given

A frequency : 5.18 x10¹⁵ Hz

Required

The wavelength

Solution

Frequency (f): the number of waves per second  

Wavelength (λ): the distance from one crest/one trough to another

Fast wave propagation (v): the distance traveled by waves per unit of time  

v= 3 x 10⁸ m/s

General formula :

v = λ.f

λ=v/f

Input the value :

λ=3.10⁸ : 5.18.10¹⁵

λ=5.792 x 10⁻⁸ m = 5.792 x 10⁻⁶ cm

Region of Ultraviolet (4000 - 10 A°, 4 x 10⁻⁵ - 10⁻⁷ cm,7.5 x 10¹⁴ - 3 x 10¹⁷ Hz)

When the temperature conversion function =CONVERT(-22, "C", "F") is applied, a reading of -22 °C in Fahrenheit is displayed. On a variety of scales, including the Fahrenheit and Celsius systems, temperature is a unit that is used to denote hotness or coolness.

Heat energy will logically go from a hotter (body with a higher temperature) to a colder (body with a lower temperature) according to temperature (one at a lower temperature).

A temperature is a measurement used to express how hot or cold something is. It demonstrates how heat energy naturally flows from a hotter body to a cooler body and can be expressed in terms of any number of arbitrary scales (one at a lower temperature).

A match is burning at a far greater temperature than an iceberg, yet an iceberg has a significantly higher total heat energy than a match. Temperature is not the same as the energy of a thermodynamic system.

The temperature, along with pressure, density, and other similar properties, is referred to as an intense property as opposed to extensive characteristics like mass or volume—one that is independent of the quantity of stuff being addressed.

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Hello! :p .

deserts are known to have little to no rain fall & drop to very low temperatures at night! I hope this helps!

Answer: little or no rainfall

Explanation: Precipitation, sunlight, and temperature are all abiotic factors.

Deserts have a lack of rainfall.

Some deserts are hot, some deserts can be cold too.

Abiotic factors are  extreme temperatures of the day and night  the fast winds  the strong amount of sunlight  scarcity of water

pH is the measurement of the intensity of a solution of how much it is acid or base. Acid has a pH of less than 7 and the base has a pH of more than 7. The solution is neutral at pH 7.

1. Given information,

The hydrogen ion concentration ([H⁺]) of a solution = 8.9 × 10⁻⁷ mol/L.

pH = -log[H⁺]

pH = -log(8.9 × 10⁻⁷) = -(-6.05) = 6.05

2. Given information,

The pH of a solution = 12.35

[H⁺] = 10^(-pH)

[H⁺] = 10^(-12.35) ≈ 4.21 × 10⁻¹³ mol/L

Therefore, the pH of the solution is 6.05 and the hydrogen ion concentration of the solution is approximately 4.21 × 10⁻¹³ M.

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The new temperature of the balloon if the volume is decreased to the given amount is 338.5K.

Charles's law states  that the volume occupied by a definite quantity of gas is directly proportional to its absolute temperature.

It is expressed as;

\(\frac{V_1}{T_1} = \frac{V_2}{T_2}\)

Given the data in the question;

Final Temperature; \(T_2 = \ ?\)

To determine the new temperature as the volume is decrease, we substitute our given values into the expression above.

\(\frac{V_1}{T_1} = \frac{V_2}{T_2}\\\\V_1T_2 = V_2T_1\\\\261L * T_2 = 176L * 502K\\\\261L * T_2 = 88352L.K\\\\T_2 = \frac{88352L.K}{261L}\\ \\T_2 = 338.5K\)

Therefore, the new temperature of the balloon if the volume is decreased to the given amount is 338.5K.

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Answer:

please mark brainlest and it's  Procedure 1: One of the products was a gas that escaped into the air.

Procedure 2: A gas from the air reacted with one of the other reactants

Explanation:

the gas ca evaporate so it would'nt be a or c and b dosent make sense.

Wine was produced 37 years ago (1984 as usual year 15,2021) that is shown in the calculations below.

Reaction rate is calculated using the formula rate = Δ[C]/Δt, where Δ[C] is the change in product concentration during time period Δt. The rate of reaction can be observed by watching the disappearance of a reactant or the appearance of a product over time.

The time can be represented as follows:

t= 2.303\∧ log A0/A

∧= 0.693/t 1/2

The rate of a reaction is proportional to the reciprocal of the time taken. Rate α 1 time Rate is inversely proportional to time. Units: s-1, min-1 etc.

The given parameters are as follows:

t1/2=12.3

A0=5.5

A=0.688

t= 2.303/(0.693/12.3) log (5.5/0.688)

t=36.9

t=37 years

Thus, wine was produced 37 years ago (1984 as usual year 15,2021)

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Characteristics that differentiate fungi from plants include: the lack of chlorophyll, the absence of sap-conducting tissues, the way nutrients are obtained through absorption, and the composition of the cell wall.

Fungi are eukaryotic organisms that belong to the Fungi kingdom, while plants are part of the Plantae kingdom. The main difference between them is related to their way of obtaining nutrients. Plants are autotrophic, that is, they are capable of producing their own food through photosynthesis, using the chlorophyll present in their cells to convert solar energy into nutrients. On the other hand, fungi are heterotrophic, which means that they depend on external sources for their nutrients, mainly through the decomposition of organic matter or through symbiosis with other organisms.

Furthermore, fungi have a cell wall composed mainly of chitin, while plants have a cell wall composed of cellulose. These fundamental differences between the Fungi and Plantae kingdoms make it possible to distinguish them from each other.

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Answer:

It is 'A' i.e., Sodium magnesium, aluminium

Elements tend to lose and gain electrons to achieve electronic stability. Lithium, sodium, and potassium are the elements that form +1 ions. Thus, option C is correct.

Cations are said to be the ions formed by donating their outermost valence electron that in return results in a positive charge on the element. Cations are said to be formed when the electron is more in number in the valence shell.

The electronic configuration is given as:

Here, there is one electron extra in the outer shell of the atom that can be donated to other atoms that are called anions (electron acceptors). Li, Na, and K can donate one electron each and hence will acquire a +1 charge.

Therefore, option C. lithium, sodium, and potassium form a +1 charge.

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a and e are heterogeneous (door and salsa), b, c, and d are homogeneous (air, black coffee, and pure water), and f cannot be classified as it pertains to a person rather than a substance or mixture. Option A and E

a. A door: Heterogeneous. A door is typically made up of various materials such as wood, metal, glass, etc. These materials have different properties and can be easily distinguished, making the door a heterogeneous object.

b. The air you breathe: Homogeneous. Air is a mixture of gases, primarily nitrogen, oxygen, carbon dioxide, and trace amounts of other gases. On a macroscopic scale, air appears uniform and consistent throughout, making it a homogeneous mixture.

c. A cup of coffee (black): Homogeneous. A cup of black coffee consists of water and coffee solutes that are evenly distributed throughout the liquid. It appears uniform and consistent, indicating a homogeneous mixture.

d. The water you drink: Homogeneous. Pure water, without any dissolved substances or impurities, is a homogeneous substance. It is composed of H2O molecules that are uniformly distributed throughout the liquid.

e. Salsa: Heterogeneous. Salsa is a mixture of various ingredients such as tomatoes, onions, peppers, and spices. These ingredients have different textures, colors, and sizes. The different components can be visually distinguished, making salsa a heterogeneous mixture.

f. Your lab partner: Heterogeneous. A lab partner refers to a person, and individuals are not considered homogeneous or heterogeneous in the same sense as substances or mixtures. They are complex beings with different physical characteristics, thoughts, and behaviors. Thus, categorizing a lab partner as homogeneous or heterogeneous is not applicable in this context. Option A and E

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Answer:

Energy in the ocean and the atmosphere

Explanation:

Hope this helps!

Answer:

0.716

Explanation:

First, write the balanced equation:

3 H2CO3 + 2 Fe(OH)3 ----> Fe2(CO3)3 + 6 H2O

Second, go from the molarity of H2CO3 to liters of Fe(OH)3

(Pull mole ratio from balanced equation)

1.22/1L  x  0.0880/1  x  3molH2CO3/2molFe(OH)3 x 1/0.225L

Use calculator, and you end up with 0.7157333

Round to 0.716