Chemistry, 03.08.2021 01:10 kevinbazalar
Bronsted-Lowry acid/base and conjugate acid/base. Please and thank you.
1. HF(aq)+ H2O(l)⇌H3O^+(aq)+F^−(aq)
2. NH3(aq)+H2O(l)⇌NH4^+(aq)+OH^−(aq)
3. HNO3(aq)+ H2O(l)→H3O+(aq)+NO3^−(aq)
4. C4H9N(aq)+H2O(l)⇌C4H9NH^+(aq)+OH^−( aq)
Answers: 1
Chemistry, 21.06.2019 17:10
Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 1
Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Bronsted-Lowry acid/base and conjugate acid/base. Please and thank you.
1. HF(aq)+ H2O(l)⇌H3O^+(aq)...
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