1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly_w [17]
4 years ago
6

Phosphorus tribromide decomposes to form phosphorus and bromine, like this: 4pbr3 (g) → p4 (g) + 6br2 (g) write the pressure equ

ilibrium constant expression for this reaction
Chemistry
1 answer:
FrozenT [24]4 years ago
3 0
Chemical reaction: 4PBr₃(g) → P₄(g) + 6Br₂<span>(g).
</span>Pressure equilibrium constant (Kp) express the relationship between product pressures and reactant pressures. The partial pressures of gases are used to calculate pressure equilibrium constant.
Kp = (p(P₄)  · p(Br₂)⁶) ÷ p(PBr₃)⁴. 
p(P₄) - partial pressure of phosphorus.
p(Br₂) - partial pressure of bromine.
You might be interested in
How do I begin this problem? How do I set up the problem? What formula do I use?
Ksju [112]
Itis realy not working
4 0
3 years ago
How many total atoms are in 0.170 g of p2o5?
Pachacha [2.7K]
7.20594 x 10^20

First you must determine how many moles of P3O5 you have. This is done by using the formula
Number of moles (n) = mass in grams of substance (m) /divided by/ Molar mass (M) [this is the sum of the atomic mass of all atoms in the compound]

n = 0.170 / P (31 x 2) + O (16 x 5)
n = 0.170 / 142
n = 0.001197 moles

Then you use avagadros number 6.02 x10^23 this is the number of atoms in one mole of any substance. Since you have 0.001197 moles you multiply the number of moles by avagadros number

0.001197 x (6.02 x 10^23)
= 7.20594 x 10^20 atoms
3 0
4 years ago
Which is transferred by all types of waves
bonufazy [111]

Answer:

Explanation:

The question is what do all types of waves transfer. Waves, both mechanical and electromagnetic are disturbances that transfer energy without transporting matter. It doesnt matter wether they are propagating trough a medium or trough vacuum. Therefore the correct answer is A. energy.

3 0
3 years ago
Read 2 more answers
n unknown metal is either aluminum, iron or lead. If 150. g of this metal at 150.0 °C was placed in a calorimeter that contains
Nitella [24]

Answer : The metal used was iron (the specific heat capacity is 0.449J/g^oC).

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of unknown metal = ?

c_2 = specific heat of water = 4.184J/g^oC

m_1 = mass of unknown metal = 150 g

m_2 = mass of water = 200 g

T_f = final temperature of water = 34.3^oC

T_1 = initial temperature of unknown metal = 150.0^oC

T_2 = initial temperature of water = 25.0^oC

Now put all the given values in the above formula, we get

150g\times c_1\times (34.3-150.0)^oC=-200g\times 4.184J/g^oC\times (34.3-25.0)^oC

c_1=0.449J/g^oC

Form the value of specific heat of unknown metal, we conclude that the metal used in this was iron (Fe).

Therefore, the metal used was iron (the specific heat capacity is 0.449J/g^oC).

6 0
4 years ago
Isopropyl Alcohol (C3H8O) is the active ingredient in hand sanitizer. If I have 125 grams of Isopropyl Alcohol (C3H8O)...
AnnyKZ [126]

Answer:

There are 1*10^25 H atoms present

Explanation:

Step 1: data given

Mass of Isopropyl Alcohol (C3H8O) = 125 grams

Molar mass of Isopropyl Alcohol (C3H8O) = 60.1 g/mol

Number of Avogadro = 6.02 *10^23 /mol

Step 2: Calculate moles Isopropyl Alcohol

Calculate moles Isopropyl Alcohol = mass C3H8O / molar mass C3H8O

Calculate moles Isopropyl Alcohol = 125 grams / 60.1 g/mol

Calculate moles Isopropyl Alcohol = 2.08 moles

Step 3: Calculate moles of hydrogen

For 1 mol C3H8O we have 8 moles hydrogen

For 2.08 moles we have 8*2.08 = 16.64 moles hydrogen

Step 4: Calculate amount of hydrogen atoms

Hydorgen atoms = moles H * number of Avogadro

Hydrogen atoms = 16.64 moles * 6.02* 10^23 / mol

Hydorge, atoms = 1*10^25 H atoms

There are 1*10^25 H atoms present

8 0
4 years ago
Other questions:
  • An example of an atom that has no charge is one that has
    8·2 answers
  • If an insufficient amount of liquid unknown had been used, how would this have effected the value of the experimental molar mass
    13·1 answer
  • Write a balanced molecular reaction for the hydrogenation of ethyne to the saturated alkane.
    15·1 answer
  • Consider the following chemical equilibrium:
    6·1 answer
  • PLEASE HELP What is the mass of sodium in 50 grams of salt? Show your work.
    13·2 answers
  • Can someone help me?​
    12·1 answer
  • What would happen if a lighted match stick is placed at the mouth of a jar of ethyne gas ?
    6·1 answer
  • How did President Wilson anger civil rights advocates?
    13·2 answers
  • Which of the following shows the correct sequence of the Cell Cycle?
    5·2 answers
  • Calculate the number of moles and the number of grams of the following solution 1. 0L of 0. 50M NaCI
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!