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
-BARSIC- [3]
3 years ago
14

Hydrogen peroxide (h​2​o​2​) decomposes according to the equation:h​2​o​2​(​l​) ​⇆​ h​2​o(​l​) + ½ o​2​(​g​)calculate k​p​ for t

his reaction at 25°c. (δh° = –98.2 kj/mol, δs° = 70.1 j/k·mol)

Chemistry
1 answer:
goldenfox [79]3 years ago
6 0
Hello! Let me try to answer this :)

Thanks and please correct if there are any mistakes ^ ^

You might be interested in
Suppose you see a crescent Moon. How do you know if it is waxing or waning?
nasty-shy [4]

Answer:

waxing is in the evening and waning is in the morning if you cant see the moon in the evening it is waning if you can see it in the evening it is waxing

5 0
3 years ago
Molecules have ionization energies, just like atoms do. The ionization energy for molecular oxygen, for example, is 1314 kJ/mol.
taurus [48]

Answer:

91.1835 nm

Explanation:

Given that the ionization energy of the oxygen molecule = 1314 kJ/mol

It means that

1 mole of oxygen molecules can be ionized by the energy = 1314 kJ = 1314000 J

1 mole of molecules contains 6.022 × 10²³ atoms

So,

6.022 × 10²³ atoms of oxygen molecules can be ionized by the energy = 1314000 J

1 atom require \frac{1314000}{6.022\times 10^{23}}\ J of energy

Energy = 2.18\times 10^{-18}\ J

Also

E=\frac {h\times c}{\lambda}

Where,  

h is Plank's constant having value 6.626\times 10^{-34}\ Js

c is the speed of light having value 3\times 10^8\ m/s

\lambda is the wavelength

So,

\lambda=\frac {h\times c}{E}

\lambda=\frac{6.626\times 10^{-34}\times 3\times 10^8}{2.18\times 10^{-18}}\ m

\lambda=91.1835\times 10^{-9}}\ m

Also,

1\ nm=10^{-9}}\ m

So, wavelength = 91.1835 nm

6 0
3 years ago
An unknown compound contains 38.7 % calcium, 19.9 % phosphorus and 41.2 % oxygen. what is the empirical formula of this compound
Softa [21]

Answer: Ca3(PO4)2

Explanation:

  • We assume that the sample is 100.0 g.
  • The sample contains 38.7 g of Ca, 19.9 g of P, and 41.2 g of O as the proportions show.
  • Then we can calculate the number of moles of each component (n = m/atomic mass).
  • The number of moles of Ca = 38.7/40.078 = 0.96 mol.
  • The number of moles of P = 19.9/30.97 = 0.64 mol.
  • The number of moles of O = 41.2/15.99 = 2.75 mol.
  • Now, we can get the molar ratios of different components (Ca, P, and O) in the sample by dividing the number of moles of each component by the lower number of moles, that we should divide the number of moles by (0.64).
  • Ca: P: O = (0.96/0.64) : (0.64/0.64) : (2.75/0.64) = 1.5 : 1 : 4.
  • To avoid the fraction of the ratios, we can multiply all ratios by 2.0.
  • Now, the ratio of Ca : P : O will be 3 : 2 : 8.
  • That main the empirical formula of the compound is Ca3P2O8 which can be expressed as calcium phosphate (Ca3(PO4)2).
8 0
3 years ago
Write the empirical formula for Mg+2, Fe+2, I−, S−2
artcher [175]
Mg 10 
fe 24 
s 18 
i 54
divide by smallest no.
mg1 
fe 2.4/2
s 1.8/2
i 5.4/5

if u think this is wrong comment i will fix it 
Thanks!
8 0
3 years ago
Which type of energy is generated due to the movement of charged particles?
____ [38]
Electrical energy or the answer C
4 0
3 years ago
Read 2 more answers
Other questions:
  • !!Help ASAP!!! Imagine you have just baked a pizza in the oven. You've only let it cool for a minute, but you're hungry and you
    14·2 answers
  • What are electrons?
    12·2 answers
  • Which of the following is NOT a fate for pyruvate?
    13·1 answer
  • You are asked to prepare a solution that is 2% by weight ethanol in water. Note that the molecular weight of ethanol is 46.07 g/
    13·1 answer
  • How do the particles of a gas differ from the particles of a solid?
    13·1 answer
  • Question 7
    13·2 answers
  • Can someone please help me with this quickly thank you
    8·1 answer
  • How many moles of CF4 could be made from 456g of F?
    6·1 answer
  • When a seed germinates a new plant begins to grow. What is another word for germinates
    9·1 answer
  • Pls help i will give brainliest :)))) love youuuu
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!