Find the equilibrium partial pressure of I2 at this temperature. Express the pressure to three decimal places and include the appropriate units. PI2 = 0.022atm Incorrect; Try Again; 5 attempts remaining

The product of this reaction is PH3. All of the atoms in PH3 have a stable configuration.

According to the octet rule, atoms are stable when they have two or eight electrons around their outermost shell. A stable configuration is one in which the outermost shell is fully filled with eight electrons.

The reason behind chemical combination is to enable atoms attain this stable configuration. If we look at the compound, PH3, we will notice that phosphorus has eight electrons around its outermost shell while each hydrogen atom has two electrons around its outermost shell hence  all of the atoms have a stable configuration.

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Answer:ph3

Explanation:yeah

Answer:

required diameter is 7.65 mm

Explanation:

Given the data in the question;

F = 6660 N

l₀ = 380 mm = 0.38 m

E = 110 GPa = 110 × 10⁹ N/m²

Δl = 0.50 mm = 0.0005 m

So, lets assume the deformation is elastic;

d₀ = √(  [4l₀F] / [πEΔl] )

we substitute

d₀ = √(  [4 × 0.38 × 6660] / [π × (110 × 10⁹) × 0.0005]] )

d₀ = √( 10123.2 / 172787595.947 )

d₀ = √( 5.85875 × 10⁻⁵ )

d₀ = 0.007654 m

d₀ = ( 0.007654 × 1000 )mm

d₀ = 7.65 mm

Therefore, required diameter is 7.65 mm

Answer:

statement C is the correct answer

The reaction types are oxidation-reduction, displacement, and double displacement reaction.

1. 2H₂O₂ -> 2H₂O + O₂   -----------  reduction.

2. 2CO + O₂ -> 2CO₂   ------------   Synthesis

3. 2KBr + Cl₂-> 2KCI + Br₂  ----- Single Replacement

4. 2H₂O₂ -> 2H₂O + O₂  ---------------- reduction.

5. 2HgO -> 2Hg + O₂  -----------  Decomposition.

6. CaO + H₂O -> Ca(OH)₂ ----------  synthesis / hydration

7. Zn + H₂SO4 -> ZnSO4 + H2 ----- single displacement

8. 2H2 + O2 -> 2H2O  ---------- Synthesis.

9. Ca(OH)2 + H2SO4 -> CaSO4 + 2H2O  --- double displacement.

10. AgNO3 + NaCl -> AgCl + NaNO3 --- double displacement.

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From the equation, MgSO₄ is the limiting reagent and the mass of Magnesium Hydroxide produced is 48.3g.

It is given that the mass of MgSO₄ is 100g and the mass of Sodium Hydroxide is 70g. Then the number of moles of Magnesium Sulfate and Sodium Hydroxide is given by,

Moles of MgSO₄ = 100/120

Moles of MgSO₄ = 0.833 mol

Moles of NaOH = 70/40

Moles of NaOH = 1.75 mol

It is given that 1 mol MgSO₄ needs 2 mol of NaOH, then 0.833mol of MgSO₄ needs 2x0.833 mol of NaOH which is given by 1.67mol. This is less than 1.75 mol of NaOH.

Thus, MgSO₄ is the limiting reagent. To find the mass of Magnesium Hydroxide the following steps are to be taken,

1mol of MgSO₄ forms 1mol of Magnesium Hydroxide

Then 0.833mol of MgSO₄ forms 0.833mol of Magnesium Hydroxide

Therefore, the mass of Magnesium Hydroxide is the product of moles and molar mass which is given by,

Mass of Magnesium Hydroxide = 0.833x58

Mass of Magnesium Hydroxide = 48.3g

Therefore the mass of Magnesium Hydroxide is 48.3g

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At equilibrium, the HI concentration is 2.92 mol/L.

For the process H2(g)+CO2(g)updownarrow H2O+CO. at 1660 °C, the equilibrium constant KP is 4. In a 5 liter flask, 0.8 moles each of H2 and CO2 are first injected. Reactions occur in the following order with relation to H2: 1. In experiments 1 and 2, the reaction rate doubles when the initial concentration of H2 is doubled while the initial concentration of Cl2 is held constant.

H2(g) + I2(g) ⇌ 2HI(g)

c = [HI]² / [H2][I2]

At the specified temperature, c = 53.3, hence the following can be written:

53.3 = [HI]^2 / (0.400 mol/L) × (0.400 mol/L)

or, [HI]² = 53.3 × 0.16

or, [HI]² = 8.528

or, [HI] = sqrt(8.528) mol/L

or, [HI] = 2.92 mol/L

As a result, 2.92 mol/L of HI are present at equilibrium.

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Part - A 164000 molecules of substrate can a molecule of enzyme process in each minute.

Part - B The kcat/KM for the enzyme reaction is  85.416×10⁶ (M.s)⁻¹

An enzyme will attach itself to one or more reactant molecules and start the reaction by catalyzing it. These molecules are the substrates for the enzyme. One substrate may undergo several product breakdowns in some reactions. Others involve the fusion of two substrates into a single larger molecule or the exchange of individual molecules.

The place on an enzyme's surface where substrates bind and the chemical reaction it catalyzes take place is called the active site of the enzyme.

(A)kcat = turnover number

kcat = Vmax/[Etotal] = ( 164×10⁻⁶ (mol/L)min⁻¹ )/(1×10⁻⁹ mol/L)

kcat = 164000 min⁻¹

(B) kcat/kM = ( 164000 min⁻¹ / 32×10⁻⁶M )

kcat/kM = 5125×10⁶ (M.min)⁻¹

kcat/kM  = 85.416×10⁶ (M.s)⁻¹.

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Answer: A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

Explanation:

Answer:

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Explanation:

The compound belongs to the alcohol class. This is indicated by the hydroxyl group (-OH) bonded to one of the carbons.

The name for this compound is Ethanol.

The Ksp of SrCO3 is obtained as 1.6 * 10^-9.

The kind of salt used and the temperature of the solution both affect Ksp's value. It offers details on the maximum quantity of salt that can dissolve in the solvent under a specific set of circumstances.

A solution is referred to as supersaturated and the excess ions may precipitate out of solution if the concentration of the ions in it exceeds the value of Ksp.

We know that the Ksp for the SrCO3(s) can be obtained from;

Ksp = [Sr^2+] [CO3^2-]

Ksp = x^2

But  [Sr^2+] = [CO3^2-] = 4 * 10^-5 M = x

Thus;

Ksp = (4 * 10^-5)^2

= 1.6 * 10^-9

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31). 1.088 L of oxygen gas will react with sodium to produce 3.87g of magnesium oxide.

32.) 4.93 grams of magnesium is produced when 3.96 grams of sodium reacts with magnesium chloride.

33). 9.52 grams of potassium chloride is produced when 4.7 L of chlorine reacts with 8.7g of potassium.

34). 90.35 grams of HCl is produced from the reaction of 47.3 L of chlorine with 2.50 g of hydrogen (H₂) as the limiting reactant.

31.) To determine the volume of oxygen gas (O₂) that will react with sodium to produce 3.87g of magnesium oxide (MgO), we first need to balance the chemical equation:

4Na + O₂ → 2Na₂O

From the balanced equation, we can see that the molar ratio between O₂ and MgO is 1:2. The molar mass of MgO is 40.31 g/mol. Using these values, we can calculate the number of moles of MgO produced:

moles of MgO = (3.87 g MgO) / (40.31 g/mol MgO) = 0.096 mol MgO

Since the molar ratio between O₂ and MgO is 1:2, we know that 0.096 mol of MgO requires 0.048 mol of O₂.

Now, we can use the ideal gas law to find the volume of O₂ at standard temperature and pressure (STP) conditions (0°C and 1 atm):

PV = nRT

V = (nRT) / P

= [(0.048 mol)(0.0821 L·atm/(mol·K))(273 K)] / (1 atm)

= 1.088 L

32). To determine the mass of magnesium (Mg) produced when 3.96 grams of sodium reacts with magnesium chloride (MgCl₂) to produce sodium chloride (NaCl), we need to balance the chemical equation:

2Na + MgCl₂ → Mg + 2NaCl

From the balanced equation, we can see that the molar ratio between sodium (Na) and magnesium (Mg) is 2:1. The molar mass of Mg is 24.31 g/mol. Using these values, we can calculate the number of moles of Mg:

moles of Mg = (3.96 g Na) / (22.99 g/mol Na) * (1 mol Mg / 2 mol Na) * (24.31 g/mol Mg)

= 4.93 g Mg

33). In the reaction where 4.7 L of chlorine (Cl₂) reacts with 8.7g of potassium (K), the balanced equation is:

2K + Cl₂ → 2KCl

From the balanced equation, we can see that the molar ratio between potassium (K) and potassium chloride (KCl) is 2:2 or 1:1. The molar mass of KCl is 74.55 g/mol. Using these values, we can calculate the number of moles of KCl produced:

moles of KCl = (8.7 g K) / (39.10 g/mol K) * (1 mol KCl / 2 mol K) * (74.55 g/mol KCl)

= 9.52 g KCl

34. To determine the limiting reactant and the mass of HCl produced, we need to compare the amount of HCl that can be formed from each reactant and identify the reactant that produces the lesser amount of HCl.

The balanced equation for the reaction is:

H₂ + Cl₂ → 2HCl

From the balanced equation, we can see that the molar ratio between H₂ and HCl is 1:2. This means that 1 mole of H₂ produces 2 moles of HCl.

First, let's calculate the number of moles of HCl that can be produced from 47.3 L of Cl₂ using the ideal gas law at STP conditions:

PV = nRT

n = (PV) / RT

= (1 atm)(47.3 L) / (0.0821 L·atm/(mol·K))(273 K)

= 2.10 mol Cl₂

Since the molar ratio between Cl₂ and HCl is 1:2, we know that 2.10 moles of Cl₂ can produce 2.10 * 2 = 4.20 moles of HCl.

Next, let's calculate the number of moles of HCl that can be produced from 2.50 g of H₂:

moles of H₂ = (2.50 g H₂) / (2.02 g/mol H₂)

= 1.24 mol H₂

Since the molar ratio between H₂ and HCl is 1:2, we know that 1.24 moles of H₂ can produce 1.24 * 2 = 2.48 moles of HCl.

Mass of HCl produced from 2.50 g of H₂:

mass of HCl = (2.48 mol HCl) * (36.46 g/mol HCl)

= 90.35 g HCl

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Answer:

Lysosomes are predominantly found in eukaryotic animal cells and are responsible for breaking down cellular debris

Explanation:

Answer:

0.02kg

Explanation:

Given parameters:

Amount of heat  = 5200J

Unknown:

Mass of ice that would be melted at 0°C = ?

Solution:

To solve this problem, use the expression below;

        H  = mL

H is the heat

m is the mass

L is the latent heat of fusion of ice  =  3.33 x 10⁵ J/kg.

 Insert the parameters and solve for m;

           5200  = m x 3.3 x 10⁵

             m  = \(\frac{5200}{3.33 x 10^{5} }\)   = 0.02kg

Heat is absorbed when ammonium chloride is dissolved in water. Identify the chemical equation that is option A. NH₂Cl (s) + H₂O (1) → NH₂Cl (aq) + heat, q is negative.

Exothermic reactions are chemical reactions that produce warmness. In phase II-B of bankruptcy three, we defined the warmth waft q as negative whilst warmness flows from the machine to the surroundings. consequently, exothermic reactions have a negative ΔH of reaction.

Ammonium chloride is an inorganic compound with the formula NH4Cl and a white crystalline salt this is highly soluble in water A chemical equation is the symbolic illustration of a chemical response inside the form of symbols and formulae, wherein the reactant entities are given in the left-hand facet and the product entities on, right hand

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Answer:

273 °K annd 0°C are equivalent

Answer:

300

Explanation:

how much is withdrawn

Answer:    es no metales

Explanation:

Answer:

it losses one neutrons that is hydrogen

0.25 kg of water losing heat will generate about 83.39 kJ when frozen.

The heat released by a substance when it freezes is expressed by the formula:

Q = m × Lf

where

Q is the released heat,

m is the mass of the substance, and

Lf is its latent heat of fusion. for water, this value is 333.55 kJ/kg.

Q = 0.25 kg * 333.55

Q = 83.5 kJ

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Yes, s = u+v/2+t, where s is the displacement, u is the beginning velocity, v is the end velocity, and t is the time required, is the equation of motion for a body travelling with uniform acceleration.

The basic law of motion, which states that a body's rate of change in displacement is directly proportional to its velocity, provides the basis for this equation. The equation of motion for a body travelling with constant acceleration, s = ut + 1/2at2, may be used to derive it.

The equation of motion for a body travelling with uniform acceleration is given by replacing the value of an as (v-u)/t and getting s = u+v/2+t. This formula is only accurate when the body's acceleration is constant and uniform.

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Answer:

Electrostatic

Explanation:

An ionic bond results from the electrostatic attraction between oppositely charged ion.

Usually, metallic ion is positively charge and the non-metallic ion is negatively charged.

Step 1

We will use the colligative property relative to the lowering of vapor pressure. The formula:

ΔP = Psv° . X

ΔP = Pressure sv pure - Pressure of the solution

X means molar fraction for solute

--------------------

Step 2

The vapor pressure of the solution at 25°C is 54.68 mmHg and:

54,68 mmHg - P sl = 54,68 mmHg . X

P sl = 53.64 mmHg (please read the question)

-------------------

Step 3

X is calculated first:

54.68 mmHg - P sl = 54.68mmHg . X

54.68 mmHg - 53.64 mmg = 1.04 mmHg = 54.68 mmHg . X

=> X = 0.0109 (solute) = moles from solute / moles from solute + moles from solvent (1)

------------------

Step 4

Moles of ethanol = mass of ethanol/molar mass of ethanol

Moles for ethanol: 270 g / 46.07 g/m = 5.86 moles of ethanol

-----------------

Step 5

Moles from solute are cleared from (1) and the result is:

Moles from solute = 0.0109 x moles from solvent/(1-0.0109) =

Moles from solute = 0.0109 x 5.86 moles/(1-0.0109) = 0.065 moles

Moles from solute = mass of solute/molar mass solute = 0.065 moles

Mass of solute = 0.065 moles x 288.4 g/mol = 18.7 g of solute

Answer: 17.7 g Testosterone

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Answer:

C. Resource use by humans has gone up and down over the years is a false statement

Explanation:

In the graph you can make an observation on how the increase of human population is directly positive.

The resource use either has a positive or negative correlation, making it impossible for the usage to fluctuate over the years.

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Answer:

Questions are an essential part of science. ... They state the final question in a way that can be answered by investigation or experiment. A good scientific question is: “What effect does the pH of water have on radish seed germination?” Good scientific questions are defined, measurable, and controllable.

Answer:

Option A is correct.

Option D is correct.

E is the correct answer

Explanation:

This a theoretical calorimetry problem that can be solved by thermodynamic concepts.

Our system is the unknown solid. If the temperature of water has increased, we can think, that the heat from the metal was absorbed by water, which is our surrounding. If in the analysis of the situation we use a calorimeter, knowing that it is an isolated system, which does not allow the entry or exit of heat, we can conclude that the heat released is equal to the heat absorbed.

In conclusion, the thermodynamic system is constituted by the chemical reaction. In this case, the surrounding is made up of water and the calorimeter itself.

Answer:

  -172.6 °C

Explanation:

You want to know the Celsius equivalent of the temperature 100.6 K.

The relation is ...

  C = K - 273.15

  C = 100.6 -273.15 = -172.55

The temperature is -172.55 °C, about -172.6 °C.

__

Additional comment

We have rounded to tenths, because that is precision of the temperature given. If you use 273 as the conversion constant, you will get -172.4.