Answer: 0.25 moles O in the sample
Explanation:
0.250 moles: C = (0.250 moles)*(12 g/mole) = 3 grams C
0.500 moles H: H = (0.500 moles)*(1 g/mole) = 0.5 grams H
Total mass is 7.5g
Subtract C and H to find grams O (7.5 g -(3 grams C + 0.5 grams H) = 4.0 grams O. Molar mass of O is 16 grams/mole.
Moles O = 0.25 O in the sample
The empirical formula is C1H2O1, possibly formalhyde.
Br2 == 2Br
24% dissociated => n total moles, 0.24 mol*n of Br, and 0.76*n mol of Br2
=> partial pressure of Br, P Br = 0.24 bar, and
partical pressure of Br2, P Br2 = 0.76 bar
kp = (P Br)^2 / P Br2 = (0.24)^2 / 0.76 = 0.0758
C The number and types of bonds within the molecule.
Explanation:
In a molecule, the number and types of bonds present determines the amount of available energy therein.
When bonds are broken or formed, energy is usually released.
- Elements combine with one another in order to attain stability in this state.
- Through this process, they form bonds by attraction.
- Where atoms exchange their valence electrons by losing or gaining it, electrovalent bonds form.
- In covalent molecules, electrons are usually shared between atoms.
- An attraction result from this type of interaction.
- The bond formed stores energy in the process.
- When bonds are broken, energy is usually released. The energy accrues when the bond was being formed.
- In molecules, we have covalent bond.
Learn more:
Bond brainly.com/question/7213980
Covalent bonds brainly.com/question/5258547
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Answer:
.6250 M
The Sodium Hydroxide is the solute, and the water is the solvent.
Explanation:
mol/volume= Molarity
(25/22.99+16+1.008)/1=.6250 M.