Search found 7 matches
- Sat Jul 03, 2021 8:47 am
- Forum: Chemistry forum
- Topic: Enthalpy of reaction using one equation and its enthalpy
- Replies: 4
- Views: 4563
Re: Enthalpy of reaction using one equation and its enthalpy
How much heat is produced when 100 mL of 0.250 M HCl (density, 1.00 g/mL) and 200 mL of 0.150 M NaOH (density, 1.00 g/mL) are mixed? HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l) ∆H°₂₅°c = −58 kJ If both solutions are at the same temperature and the heat capacity of the products is 4.19 J/g℃, how much wil...
- Thu Jul 01, 2021 9:47 am
- Forum: Chemistry forum
- Topic: Thermochemistry questions(1)
- Replies: 5
- Views: 3871
Re: Thermochemistry questions(1)
True, but calorimeter constant is unknown.
- Sat Jun 26, 2021 12:38 am
- Forum: Chemistry forum
- Topic: Unit Conversion mol/kg to mmol/g
- Replies: 14
- Views: 8204
Re: Unit Conversion mol/kg to mmol/g
@cheme209
3,7 mmol / l = 0,0037 mmol / g = 0,163 mg / g
3,7 mmol / l = 0,0037 mmol / g = 0,163 mg / g
- Fri Jun 25, 2021 2:30 pm
- Forum: Chemistry forum
- Topic: Unit Conversion mol/kg to mmol/g
- Replies: 14
- Views: 8204
Re: Unit Conversion mol/kg to mmol/g
3.7 mmol/L is very diluted solution, so gravity is not distinct from 1 g / ml.
- Thu Jun 24, 2021 6:52 am
- Forum: Chemistry forum
- Topic: Equations
- Replies: 2
- Views: 2156
Re: Equations
Condensation and hydrolysis applies to peptide, glycosydic and ester bonds (H2O is sideproduct).
About addition reaction, it is possible to some proteins:
Hgb + O2 ----> Hgb-O2
or
Hgb + CO ----> Hgb-CO
(Hgb - hemoglobine)
About addition reaction, it is possible to some proteins:
Hgb + O2 ----> Hgb-O2
or
Hgb + CO ----> Hgb-CO
(Hgb - hemoglobine)
- Sun Jun 20, 2021 12:31 pm
- Forum: Chemistry forum
- Topic: O chemistry
- Replies: 1
- Views: 3229
Re: O chemistry
First arrow from oxygen atom to H atom, and simultaneously arrow from H-Cl bond to Cl atom.
Second arrow from CH2-OH+ bond to O atom.
Third arrow from Cl- to CH2+.
Second arrow from CH2-OH+ bond to O atom.
Third arrow from Cl- to CH2+.
- Sun Jun 20, 2021 8:33 am
- Forum: Chemistry forum
- Topic: Organic chemistry question
- Replies: 1
- Views: 3289
Re: Organic chemistry question
This is SN1 type reaction. Br- leaves molecule, and H2O or CH3CH2OH attaches to carbocation.
Carbocation is planar so there is a mixture of two isomers for every product (H2O or CH3CH2OH addition).
Carbocation is planar so there is a mixture of two isomers for every product (H2O or CH3CH2OH addition).