The mass of the solute required is 250.25 g.
What is the mass of the solute?We know that the number of moles of the solute can be used to obtain the mass of the solute that is required. We can now try to find the mass of the solute that is required.
Concentration of the solution = 0.350M
Volume of the solution = 6.5 L
Number of moles of the solute = 0.350M * 6.5 L
= 2.275 moles
We now have the mass of the solute as;
2.275 moles * 110 g/mol
= 250.25 g
Th measured mass of the solute that we would have to use is 250.25 g.
Learn more about solute:https://brainly.com/question/7932885
#SPJ1
Missing parts;
A chemist wants to make 6.5 L of a .350M CaCl2 solution. What mass of CaCl2(in g) should the chemist use?
Calculate the volume (mL) of a 2.50M NaOH solution are required to make 725 mL of a 0.150M NaOH solution?
The volume of a 2.50M NaOH solution required to make 725 mL of a 0.150M NaOH solution is 43.5mL.
How to calculate volume of a solution?The volume of a solution can be calculated using the following expression:
CaVa = CbVb
Where;
Ca = initial concentrationCb = final concentrationVa = initial volumeVb = final volumeMolarity is the concentration of a substance in solution, expressed as the number moles of solute per litre of solution.
According to this question, 2.50M NaOH solution are required to make 725 mL of a 0.150M NaOH solution. The volume required can be calculated as follows:
2.5 × Va = 725 × 0.150
2.5Va = 108.75
Va = 43.5mL
Therefore, 43.5mL is the volume of the solution.
Learn more about volume at: https://brainly.com/question/12357202
#SPJ1
If 2.186×10-2 mol of NH3 gas has a volume of 365 mL at 32°C, what would be the volume of 2.186×10-2 mol of N2 gas under identical temperature and pressure conditions?
The volume of the 2.186×10⁻² mole of N₂ gas under identical temperature and pressure conditions will also be 365 mL
How do I determine the volume of N₂?We'll begin by obtaining the pressure of NH₃. This can be obtained by using the ideal gas equation as illustrated below:
Mole of NH₃ (n) = 2.186×10⁻² moleVolume (V) = 365 ml = 365 / 1000 = 0.365 L Temperature (T) = 32 °C = 32 + 273 = 305 KGas constant (R) = 0.0821 atm.L/Kmol Pressure (P) = ?PV = nRT
Divide both sides by V
P = nRT / V
P = (2.186×10⁻² × 0.0821 × 305) / 0.365
P = 1.5 atm
Finally, we shall determine the volume of the N₂ under identical (i.e the same) temperature and pressure conditions. This is illustrated below:
Mole of N₂ (n) = 2.186×10⁻² moleTemperature (T) = 32 °C = 32 + 273 = 305 KPressure (P) = 1.5 atm Gas constant (R) = 0.0821 atm.L/Kmol Volume (V) = ?PV = nRT
Divide both sides by P
V = nRT / P
V = (2.186×10⁻² × 0.0821 × 305) / 1.5
V = 0.365 L
Multiply by 1000 to express in liters
V = 0.365 × 1000
V = 365 mL
Thus, the volume is 365 mL
Learn more about volume:
https://brainly.com/question/7651677
https://brainly.com/question/18449175
#SPJ1
Hydrogenation of cholesterol
The molecular structure of the fat is changed when lipids like cholesterol are exposed to hydrogenation.
What is cholesterol?
Any member of the lipids class of specific chemical compounds is a kind of cholesterol. It is a sterol, a class of lipid (or modified steroid). All animal cells produce cholesterol, which is a crucial part of the membranes that make up those cells. It is a yellowish crystalline solid when chemically separated. It is possible to increase the saturation of fatty acids by adding hydrogen to unsaturated fatty acid chains, which connects the hydrogen atoms to the saturation sites.
Hence, the molecular structure of the fat is changed when lipids like cholesterol are exposed to hydrogenation.
To know more about cholesterol from the given link
https://brainly.com/question/841110
#SPJ1
Commercial concentrated nitric acid, HNO3, is 15.8 M. What volume of concentrated HNO3 would be required to prepare 842 mL of 7.77 M HNO3?
The volume of the concentrated HNO₃ that would be required to prepare 842 mL of 7.77 M HNO₃ is 414 mL
How do I determine the volume concentrated HNO₃ required?We can obtain the volume of the concentrated HNO₃ required to prepare 842 mL of 7.77 M HNO₃ by using the dilution formula as shown below:
Molarity of concentrated HNO₃ (M₁) = 15.8 MVolume of diluted solution (V₂) = 842 mL Molarity of diluted solution (M₂) = 7.77 MVolume of concentrated HNO₃ (V₁) =?M₁V₁ = M₂V₂
15.8 × V₁ = 7.77 × 842
15.8 × V₁ = 6542.34
Divide both side by 15.8
V₁ = 6542.34 / 15.8
V₁ = 414 mL
Thus, the volume of concentrated HNO₃ required is 414 mL
Learn more about volume:
https://brainly.com/question/24159217
#SPJ1
Imagine you are sitting in a room with a volume of 23000 liters and a temperature of 69 degrees F. The total air pressure is 766 mm Hg, and the partial pressure from oxygen is 21% of the total pressure. How many grams of oxygen are in the room?
The mass (in grams) of oxygen gas in the sitting room of 23000 liters is 6412.16 grams
How do I determine the mass of oxygen gas?We'll begin by converting 69 °F to °C. This can be obtained as follow:
Temperature (°F) = 69 °FTemperature (°C) =?°C = 5/9(°F - 32)
°C = 5/9(69 - 32)
°C = 20.6 °C
Next, we shall determine the mole of oxygen gas in the room. This is shown below:
Volume (V) = 23000 L Temperature (T) = 20.6 °C = 20.6 + 273 = 293.6 KTotal pressure = 766 mmHg = 766 / 760 = 1 atmPercentage of oxygen = 21%Presure of oxygen (P) = 21% × 1 = 0.21 atmGas constant (R) = 0.0821 atm.L/Kmol Number of mole (n) =?PV = nRT
0.21 × 23000 = n × 0.0821 × 293.6
Divide both sides by (0.0821 × 293.6)
n = (0.21 × 23000) / (0.0821 × 293.6)
n = 200.38 moles
Finally, we shall determine the mass of oxygen gas in the room
Mole of oxygen gas = 200.38 moles Molar mass of oxygen gas = 32 g/molMass of oxygen gas =?Mole = mass / molar mass
Cross multiply
Mass = Mole × molar mass
Mass of oxygen gas = 200.38 × 32
Mass of oxygen gas = 6412.16 grams
Thus, the mass of oxygen gas is 6412.16 grams
Learn more about mass:
https://brainly.com/question/6613610
#SPJ1
How much NaOH (in moles) must be added to 1 L of a buffer solution that is 1.8 M in acetic acid and 1.2 M in sodium acetate to result in a buffer solution of ph 5.22? Assume volume to remain constant.
18.00 g hydrated magnesium
sulfate is heated to drive off the
water, leaving 9.211 g MgSO4 solid.
What is the formula of the hydrate?
The formula of the hydrate would be [tex]MgSO_4.6H_2O[/tex].
Deducing the formula of a hydrate saltIn order to get the formula of the hydrated salt, the empirical formula method can be used to know the mole of the salt and that of the water.
The formula of magnesium sulfate = [tex]MgSO_4[/tex]
The formula of water = [tex]H_2O[/tex]
Mass of hydrated magnesium sulfate = 18.00 g
Mass of anhydrous magnesium salt = 9.211g
Mass of water = 18 - 9.211
= 8.789 g
Now, let's find the mole equivalent of each component:
Molar mass of magnesium sulfate = 120.366 a/mol
Molar mass of water = 18.01 g/mol
Mole of magnesium sulfate anhydrous = 9.211/120.366
= 0.0765 mole
Mole of water = 8.789/18.01
= 0.4880 mole
Now, let's divide by the lowest mole:
Magnesium sulfate = 0.0765/0.0765
= 1
Water = 0.4880/0.0765
= 6.37
Thus, the mole ratio of magnesium sulfate and water of hydrate is 6 to 1. Therefore, the formula of the hydrated salt would be [tex]MgSO_4.6H_2O[/tex].
More on hydrated salts can be found here: https://brainly.com/question/5586505
#SPJ1
Calculate Gibbs energy for the following condition K = 1.7 x 10^2, T = 25 c
The Gibbs free energy of the system is - 12.7 kJ/mol.
What is the Gibbs free energy?The term Gibbs free energy has to do with the amount of thermodynamic work that could be done by a system. We know that we can find the Gibbs free energy by the use of the equilibrium constant and the temperature of the system and that is what we have to do in this question as we do it.
We know that;
ΔG = -RTlnK
ΔG = The Gibbs free energy
R = gas constant
T = temperature
K = equilibrium constant
Thus;
R = 8.314 J/K/Mol
T = 25°C + 273 = 298 K
K = 1.7 x 10^2
When we substitute the values, we have;
ΔG =-(8.314 * 298 * ln 1.7 x 10^2)
ΔG =- 12.7 kJ/mol
We can see from the calculation that we are going to have the Gibbs free energy of the system thus described as - 12.7 kJ/mol.
Learn more about Gibbs free energy:https://brainly.com/question/20358734
#SPJ1
A chemist needs 16.61 mL of 1.312 M NaOH. What volume in mL of 3.6 M NaOH must be diluted in water to form this solution?
Please report your answer in mL to 3 decimal places.
A chemist must take 6.053 mL of 3.6 M NaOH in water to form 16.61 mL of 1.312 M NaOH solution.
In the laboratory, high-concentration solutions are prepared for using a longer duration. This solution is known as a stock solution. These solutions are diluted based on chemical needs. We need 6.61 mL of 1.312 M NaOH solution The stock concentration of NaOH solution = 3.6 M We have to find the volume of this stock solution that should be taken Given M₁ = 3.6 M M₂ = 1.312 M V₂ = 16.61 mL V₁ =?
M₁V₁ =M₂V₂
3.6 × V₁ = 1.312 × 16.61
V₁ = 1.312 × 16.61 ÷ 3.6
V₁ = 6.053 mL
Hence, 6.053 mL of 3.6 M NaOH is needed to form 16.61 mL of 1.312 M NaOH solution
To know more about NaOH solutions
https://brainly.com/question/29350821
#SPJ1
How much heat is required to melt 39.4 g of ice at (0 ∘C )? The heat of fusion for water is 6.02 kJ/mol .
Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, 13.12KJ of heat is required to melt 39.4 g of ice at (0 ∘C ).
What is Enthalpy?Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.
Mathematically,
q = n ×ΔH
where
q = amount of heat= ?
n = no of moles
ΔH = enthalpy ( 6.02 kJ/ mol)
n = w / M.M
w = given mass =39.4g
M.M = molar mass ( molar mass of water)=18g/mol
n =39.4/ 18
=2.18
Substituting all the given values, we get
q = n ×ΔH
= 2.18 ×6.02
= 12.401 kJ
=13.12KJ
Therefore, 13.12KJ of heat is required to melt 39.4 g of ice at (0 ∘C ).
To know more about enthalpy, here:
https://brainly.com/question/24170335
#SPJ1
The reaction shown has first order kinetics:
2H2 O2 (1) —> 2H2 O (1) + O2 (g)
If originally a solution of 0.600 M H2O2, its concentration was found to be 0.0750 M after 54.0 min.
In how many minutes will the concentration be 0.300M?
A) 6.80
B) 18.0
C) 14.0
D) 28.0 E) 54.0
Option B. 1n 18 minutes the concentration of a solution of 0.600 M changes to 0.300M.
An order of first-order kinetics in which the rate of the reaction relies upon the concentration of only one reactant, and is proportional to the amount of the reactant. it could be represented via the equation, charge = kA, in which ok is the reaction fee steady, and A is the concentration of the reactant.
Calculation:-
T = 2.303/k log a/(a-x)
K = 2.303/T log a/(a-x)
= 2.303/54 log(0.600/0.0750)
K = 2.303/54 log 8
= 2.303/54 × 0.9
= 0.038
new concentration = 0.300M
T = 2.303/k log a/(a-x)
= 2.303/ 0.038 log 0.600/(0.300)
= 0.693/0.038
= 18.2 minutes
or 18 minutes approx.
Learn more about first-order kinetics here:-https://brainly.com/question/18916637
#SPJ1
If a gas that has a pressure of 15 atm, a volume of 28 liters, and a
temperature of 400 K, has an increased pressure to 18 atm and increase
the temperature to 500 K, what is the new volume of the gas?
о 8,571 L
о 29.17 L
525 L
18.9 L
*
2 points
To calculate the new volume of a gas, we must first understand the atm.
What is atm?
oceanic atmospheric pressure At sea level, it has a mean value of about and is defined as the pressure created by the weight of the atmosphere. Sometimes, this figure is used as a standard pressure or a reference pressure. The unit of pressure is atm.
What does one atmosphere of pressure equal?
760 cm of mercury is equal to one atmosphere of pressure at sea level.
Using the atm formula,
P1 V1/T1 = P2 V2/T2
15×28/500= 18×V2/500
15×28×400/500×18 = V2
V2=29.166
V2=29.17 L
Therefore the option (B) is correct.
Learn more about atm from the given link.
https://brainly.com/question/19587559
#SPJ13
How many electronic under layers are there on level n=7?
The seventh shell contains 49 orbitals, making the total number of electrons in 49 orbitals 98.
How do Group 7 elements appear?characteristics of elements in group 7
At room temperature, each halogen exhibits the properties listed below: A light yellow gas is fluorine. A deadly green gas, chlorine is poisonous. The reddish-brown liquid bromine is poisonous.
Since the group number is 7, this means that the outer shell of halogen atoms contains seven electrons (energy level). These atoms gain a single electron in order to stabilize themselves and adopt the same structure as the nearby noble gas (rather than losing seven electrons which would take much more energy).
To know more about electrons visit:
https://brainly.com/question/11486231
#SPJ1
Oxygen gas reacts with powdered aluminum according to the following reaction:
4Al(s)+3O2(g)→2Al2O3(s)
What volume of O2 gas (in L), measured at 792 mmHg and 23 ∘C, is required to completely react with 52.6 g of Al?
The volume (in L) of O₂ gas, measured at 792 mmHg and 23 °C, that is required to completely react with 52.6 g of Al is 34.14 L
How to determine the volume of O₂We'll begin by obtaining the mole of O₂ that reacted. This can be obtained as follow:
Mass of Al = 52.6 gMolar mass of Al = 27 g/molMole of Al = mass / molar mass = 52.6 / 27 = 1.948 mole4Al(s) + 3O₂(g) → 2Al₂O₃(s)
From the balanced equation above,
4 moles of Al reacted with 3 moles of O₂
Therefore,
1.948 moles of Al will react with = (1.948 × 3) / 4 = 1.461 mole
Finally, we shall determine the volume of the O₂ required. Details below
Mole of O₂ (n) = 1.461 moles Pressure (P) = 792 mmHg = 792 / 760 = 1.042 atm Temperature (T) = 23 °C = 23 + 273 = 296 KGas constant (R) = 0.0821 atm.L/Kmol Volume (V) =?PV = nRT
1.042 × V = 1.461 × 0.0821 × 296
Divide both sides by 1.04
V = (1.461 × 0.0821 × 296) / 1.04
V = 34.14 L
Thus, the volume required is 34.14 L
Learn more about volume:
https://brainly.com/question/8476909
#SPJ1
What is a negative control?
A- Group that gives a result that disproves your hypothesis
B- Group in which no response is expected
C- Group that gives an unexpected result
D- Group in which a response is expected
According to the given information Group in which no response is expected is a negative control.
The correct option is C.
What is an example of a hypothesis ?A scientist may develop the hypothesis that a given type of tomato will be red if it carries the gene for the colour red. The scientist then discovers that every tomato of this variety is red during investigation.
What is the purpose of an hypothesis?Hypotheses are frequently employed to promote scientific research and enhance knowledge. These clear declarations serve as the cornerstone for all research experiments. Therefore, a problem in the creation of a hypothesis may lead to errors in the design of a whole experiment.
What is the main function of hypothesis?As previously said, a hypothesis serves as a response to the research question and directs the gathering and analysis of data. Researchers can use hypotheses to both identify relationships between variables and forecast relationships based on theoretical principles and/or empirical data.
To know more about Hypothesis visit:
https://brainly.com/question/5177511
#SPJ13
A 1.20 L weather balloon on the ground has a temperature of 25.0°C and is at atmospheric pressure (1.00 atm). When it rises to an elevation where the pressure is 0.730 atm, then the new volume is 1.80 L. What is the temperature (in °C) of the air at this elevation?
The final temperature (°C) of the air at this elevation is 326.3K.
How to calculate temperature?The temperature of a gas can be calculated using the combined gas law equation as follows:
P₁V₁/T₁ = P₂V₂/T₂
Where;
P₁ = initial pressureV₁ = initial volumeT₁ = initial temperature P₂ = final pressureV₂ = final volumeT₂ = final temperatureAccording to this question, 1.20L weather balloon on the ground has a temperature of 25.0°C and is at atmospheric pressure (1.00 atm). When it rises to an elevation where the pressure is 0.730 atm, then the new volume is 1.80L. The final temperature can be calculated thus:
1 × 1.2/298 = 0.730 × 1.8/T₂
0.004027T = 1.314
T = 326.3K
Therefore, 326.3K is the final temperature of the balloon.
Learn more about combined gas law at: https://brainly.com/question/2441080
#SPJ1
Have two sides that mirror each other along one plane through the central axis.
Have two sides that mirror each other along one plane through the central axis called as symmetrical
The line of centroids or central axis is defined as the line that passes through the centroids along the beam and the cross section are then defined as the beam section which are perpendicular to the central axis and that two side are mirror images of each other and place a mirror on the fold then image of one side of the picture will fall exactly on the other side of the picture and that are called as symmetrical means same
Know more about mirror image
https://brainly.com/question/27656895
#SPJ1
What is one way the concept of stability is seen in chemistry?
Stability can be seen in chemistry through thermodynamics or kinetic stability.
There are two possible meanings of stability when it refers to coordination compounds (metal complexes): kinetic stability or thermodynamic stability.
The change in energy when reactants become products or G for the reaction is referred to as thermodynamic stability. Reactivity, or generally ligand substitution, is referred to as kinetic stability. In some situations, substitution happens relatively quickly, while in others, it happens quite slowly. Complexes of the first type are known as labile, whereas those of the second type are known as inert. These two forms of stability can sometimes be parallel to one another, but they are frequently not.The energetics and associated equilibrium constant for the reaction of an aquated metal ion with another ligand is frequently referred to as the reaction's "thermodynamic stability" (other than water). The stability constant () is equal to the instability constant reciprocated.Learn more about thermodynamic stability here:
https://brainly.com/question/28431165
#SPJ9
How many joules are in 6,458 Cal? Express your answer in scientific notation with the correct number of significant figures.
The number of Joules in 6,458 Calories calculated to the correct number of significant figures would be 2.6790 x [tex]10^4[/tex] Joules.
Unit conversionBoth Joules (J) and Calories (Cal) are units of energy. According to the standard unit of conversion:
1 kiloCalorie = 4148 Joules
Since, 1 kiloCalorie = 1000 Calorie
Then:
1000 Calorie = 4148 Joules
Thus;
1 Calorie = 4148/1000
= 4.148 Joules
Now, let's see the number of Joules that is equivalent to 6,458 Calories.
1 Calorie = 4.148 Joules
6,458 Calories = 4.148 x 6,458
= 26787.784 Joules
According to one of the rules guiding significant figures when performing multiplication operations, the number with the lowest significant figure is considered for the significant figures of the final answer.
Thus, the final answer, in this case, would be to four significant figures.
In other words, 6,458 Calories = 2.6790 x [tex]10^4[/tex] Joules.
More on energy conversion can be found here: https://brainly.com/question/8427473
#SPJ1
According to the collision theory of reaction rates, which of the following are true? Choose all that apply. Raising the temperature would increase the rate of the reverse reaction by increasing the number of successful 2 O2 collisions. Increasing the concentrations of O3 + O would increase the rate of the forward reaction. At a higher temperature, the rate of the reverse reaction will increase because the value of ΔE will be smaller than -392 kJ. Increasing the concentration of O3 + O would have no effect on the rate of the forward reaction. In the presence of a catalyst, the value of ΔE will be smaller than -392 kJ.
The given reaction is an exothermic reaction thus, heat is evolved in the reaction. Thus increasing temperature increases the rate of reverse or backward reaction. Increasing concentration of ozone and O will increase the rate of forward reaction.
What is collision theory?According to collision theory, the rate of a reaction depends on the number of effective collisions of the reactants. The given reaction is the combination of ozone with oxygen to give oxygen molecule.
This reaction is exothermic, hence increasing the temperature will effect the equilibrium so as to consume the extra temperature reverse reaction will take place by which collision of O₂ molecules increases.
Similarly increasing the concentration of reactants O₃ and O will increase the rate of forward reaction. The enthalpy change is negative here indicating the reaction is exothermic, thus, increase the temperature and use of catalyst also decreases the activation energy ΔE.
To find more on collision theory, refer here:
https://brainly.com/question/14566831
#SPJ1
It's 100 degrees outside today. You forgot your nearly full water bottle in the car when you went into the store. When you return later, you open the water bottle and it makes a "hissing" sound. Explain why this occurs. In your response, discuss what is happening with the water molecules and how thermal energy is changing.
The hissing sound from the water bottle occurred due to increase in thermal energy of the car which is the immediate environment of the water bottle.
What is thermal energy?Thermal energy is defined as the type of energy that expresses the flow of heat through a medium.
When there is increase in heat energy, outside the an enclosed medium such as a car, all the contents within the medium also increases in temperature.
There is also a rise in temperature of water in the water bottle and this causes the water molecules to gain energy, vibrate and collide more often among each other.
The hissing sound occurs due to a rise in pressure of the water occuring due to rise in temperature.
Learn more about temperature here:
https://brainly.com/question/26141817
#SPJ1
A sample of gas is placed in a 25.0 L sealed container at STP. The
container is heated to 25 C. What will be the pressure in the container?
The pressure of a sample of gas placed in a 25.0L container at STP is 0.98atm.
How to calculate pressure?The pressure of an ideal gas can be calculated by using the following formula:
PV = nRT
Where;
P = pressureV = volume n = number of molesT = temperatureR = gas law constantAccording to this question, a sample of gas is placed in a 25.0 L sealed container at STP. The container is heated to 25°C. The pressure in the container is as follows:
P × 25 = 1 × 0.0821 × 298
25P = 24.47
P = 0.98atm
Therefore, 0.98atm is the pressure of the gas
Learn more about pressure at: https://brainly.com/question/18124975
#SPJ1
A gas leak was detected in an apartment building and the resulting gas was analyzed. A sample was found to contain 1.54 grams of nitrogen and 0.277 grams of hydrogen. Determine the empirical formula for the leaked gas.
The empirical formula for the leaked gas, given it contains 1.54 grams of nitrogen and 0.277 grams of hydrogen is NH₃
How do I determine the empirical formula?The empirical formula for the leaked gas can be obtained as illustrated below:
Nitrogen (N) = 1.54 gramsHydrogen (H) = 0.277 gramsEmpirical formula =?Divide by their molar mass
N = 1.54/ 14 = 0.11
H = 0.277 / 1 = 0.277
Divide by the smallest
N = 0.11 / 0.11 = 1
H = 0.277 / 0.11 = 3
Thus, from the above calculation, we can conclude that the empirical formula of the gas is NH₃
Learn more about empirical formula:
https://brainly.com/question/9459553
#SPJ1
) Classify each material below as a Strong Electrolyte, Weak Electrolyte, or Non-Electrolyte
Al(OH)3 , HN3 , C8H10 , HC3H5O2
Al(OH)3 = weak electrolyte
HN3 = strong electrolyte
C8H10 = Non electrolyte
HC3H5O2 = weak electrolytes.
What are electrolytes?
An electrolyte is described as a medium containing ions that is electrically conducting through the movement of those ions, but not conducting electrons. Electrolytes includes most soluble salts, acids, and bases dissolved in a polar solvent, such as water.
The human cells use electrolytes to conduct electrical charges, which is how your muscles contract. Those same electrical charges gotten from also help with chemical reactions, especially when it comes to hydration and the balance of fluids inside and outside of cells.
Learn more about electrolytes at: https://brainly.com/question/17089766
#SPJ1
Calculate the molar solubility of iron(II) hydroxide, Fe(OH)2, in a solution buffered at a pH of
13.15. The Ksp of Fe(OH)2 is 1.6 × 10−14.
The solubility of solute in a solution can be find out from the solubility constant Ksp and molar concentrations. The solubility of iron hydroxide in the solution is 3.19 ×10 ⁻¹⁶ M.
What is solubility?Solubility of substance is the fraction of its concentration which dissolves in a solvent at a specific temperature. The solubility constant Ksp is the product of molar concentrations of the ions in the solute.
It is given that the pH of the solution is 13.15. Thus, pOH = 14 -13.15 = 0.85.
[OH-] = Antilog (pOH) = antilog (0.85)
= 7.07 M.
The solute Fe(OH)₂ dissociates into Fe²⁺ ion and 2 OH- ions. Let s be the solubility of one mole of ion. Thus [Fe²⁺] = s. Then, the Ksp can be written as follows:
Ksp = [Fe²⁺] [OH-]²
1.6 × 10⁻¹⁴ = s × [7.07 M]²
s = 1.6 × 10⁻¹⁴/[7.07 M]²
= 3.19 ×10 ⁻¹⁶ M.
Therefore, the molar solubility of iron(II) hydroxide in the given solution is 3.19 ×10 ⁻¹⁶ M.
To find more on solubility, refer here:
https://brainly.com/question/28170449
#SPJ1
If we use 25.05 mL of the solution above to reach the endpoint titrating 10.00 mL of a 0.200 M HCl solution, what is the working (actual) concentration of the NaOH solution? Remember, you need a balanced chemical reaction for stoichiometry. (do not forget about SF)
The concentration of the solution is obtained as 0.08 M.
What is the concentration of sodium hydroxide?We know that the reaction that occurs between the sodium hydroxide and the hydrochloric acid is one that may be referred to as neutralization reaction. We can see that the reaction is given by; [tex]NaOH(aq) + HCl(aq) --- > NaCl(aq) +H_{2} O(l)[/tex]
Thus;
Concentration of the acid CA = 0.200 M
Volume of the acid VA = 10.00 mL
Volume of the base VB = 25.05 mL
Concentration of the base CB = ??
Number of moles of the acid NA = 1
Number of moles of the base NB = 1
Then;
CAVA/CBVB = NA/NB
CAVANB = CBVBNA
CB= CAVANB/VBNA
CB = 0.200 M * 10.00 mL * 1/ 25.05 mL * 1
= 0.08 M
Learn more about concentration:https://brainly.com/question/10725862
#SPJ1
the nuclear equation of the neutron bombardment of cobalt-60
The nuclear equation for this reaction shows the gamma rays that are released when cobalt-60 is produced. 5927Co+10n⟶6027Co+γ
What is nuclear reaction ?
In nuclear physics and chemistry, a nuclear reaction is the process by which two atomic nuclei or nuclei and external particles collide to produce one or more new nuclides. Therefore, a nuclear reaction must transform at least one nuclide into another nuclide. When a nucleus interacts with another nucleus or particle and they separate without changing the properties of the nuclide, this process is simply called a form of nuclear scattering and is not a nuclear reaction.
Although in principle two or more particles could react and collide, the probability of three or more nuclei colliding in the same place at the same time is much lower than for two nuclei, so such Incidents are very rare.
To learn more about the nuclear reaction , click the given link ;
https://brainly.com/question/25387647
#SPJ1
Sulfur trioxide gas reacts with moisture in the atmosphere to produce
sulfuric acid drops, which can fall as acid rain:
SO3(g) + H₂O(1)→ H₂SO4(1)
What mass in grams of sulfuric acid would be produced by the complete
reaction of 40.01 grams of sulfur trioxide?
The mass in grams of sulfuric acid, H₂SO₄, that will be produced by the complete reaction of 40.01 grams of sulfur trioxide is 49.01 grams
How do I determine the mass of sulfuric acid produced?We'll begin by obtaining the reacting mass from the balanced equation. This is shown below
SO₃(g) + H₂O(l) → H₂SO₄
Molar mass of SO₃ = 32 + (16 × 3) = 80 g/molMass of SO₃ from the balanced equation = 1 × 80 = 80 gMolar mass of H₂SO₄ = (1 × 2) + 32 + (16 × 4) = 98 g/mol Mass of H₂SO₄ from the balanced equation = 1 × 98 = 98 gFrom the balanced equation above,
80 g of SO₃ reacted to produce 98 g of H₂SO₄
Finally, we shall determine the mass of sulfuric acid, H₂SO₄ produced as illustrated below:
From the balanced equation above,
80 g of SO₃ reacted to produce 98 g of H₂SO₄
Therefore,
40.01 g of SO₃ will react to produce = (40.01 × 98) / 80 = 49.01 g of H₂SO₄
Thus, the mass of sulfuric acid, H₂SO₄ produced is 49.01 g
Learn more about stoichiometry (mass-mass reaction):
https://brainly.com/question/9526265
#SPJ1
Fe(s) + 2 HNO3(aq) →Fe(NO3)2(aq) + H₂(g)
What is the total number of oxygen atoms represented in the formula of the iron
compound produced?
Answer: 6
Explanation:
If we are only looking at the number of oxygen atoms in the product then the answer is 6.
NO3 contains 3 oxygen atoms.
(NO3)2 means that we have 2 NO3 groups which means there are 6 oxygen atoms.
What is the physical state of strontium at 25 degrees?
Answer:
Strontium is a chemical element with symbol Sr and atomic number 38. Classified as an alkaline earth metal, Strontium is a solid at room temperature.
Explanation:
