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Leno4ka [110]
3 years ago
10

Calculate the pH of 0.50M H2S

Chemistry
1 answer:
-BARSIC- [3]3 years ago
5 0
I got that pH=3.65 using the fact that Ka=[H⁺][A⁻]/[HA] at equilibrium.  In the ice table, I stands for initial, C stands for change, and E stands for equilibrium.  

I hope this helps.  Let me know if anything is unclear.

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What type of covalent bond is formed between amino acid molecules during protein synthesis? peptide bond electrovalent bond hydr
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The type of covalent bond is formed between amino acid molecules during protein synthesis will be  <u>"peptide bond".</u>

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A peptide bond would be a sort of covalent link that connects an amino acid's carboxyl group to its amino group. Amino acids itself were comprised of atoms bonded together through covalent bonds.

Two atoms share an electron pair equally in a covalent link. Peptide (amide) but also disulfide links between amino acids, as well as C-C, C-O, and C-N bonds within amino acids, represent examples of significant covalent bonds.

Therefore, the type of covalent bond is formed between amino acid molecules during protein synthesis will be  <u>"</u><u>peptide bond"</u><u>.</u>

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8 0
1 year ago
Endothermic or exothermic
yanalaym [24]

Answer:

endo takes energy in and exo releases it out

Explanation:

3 0
3 years ago
Complete combustion of 7.50 g of a hydrocarbon produced 23.1 g of CO2 and 10.6 g of H2O. What is the empirical formula for the h
r-ruslan [8.4K]
A CH compound is combusted to produce CO2 and H2O 
CnHm + O2 -----> CO2 + H2O 
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 Mass of H2O = 10.6g
 Calculate by mass of the compounds
 For Carbon C, divide by molecular weight of CO2 and multiply with Carbon
molecular weight. So C in grams = 23.1 x (12.01 / 44.01) = 6.3 g C
 For Hydrogen H, divide by molecular weight of H2O and multiply with Hydrogen molecular weight. So H in grams = 10.6 x (2.01 / 18.01) = 0.53 g C
= 1.18 of H
 Calculate the moles for C and H
 6.3 grams of C x (1 mole/12.01 g C) = 0.524 moles of C
 1.18 grams of H x (1 mole/1.008 g H) = 1.17 moles of H
 Divides by both mole entities with smallest
 C = 0.524 / 0.524 = 1 x 4 = 4
 H = 1.17 / 0.524 = 2.23 x 4 = 10
 The empirical formula is C4H10.
7 0
3 years ago
Read 2 more answers
What is the volume of a gas if 0.182 moles of the gas is at 1.99 atm and 83.4oC?
Sunny_sXe [5.5K]

Answer:

2,67 L

Explanation:

8 0
2 years ago
Why is this reaction considered to be exothermic? a Because energy difference A is greater than energy difference C. b Because e
Pani-rosa [81]

Answer:

we would need a bit more info for this

Explanation:

4 0
3 years ago
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