Can a book sitting on a desk represent each of Newton's Laws?
1. yes
2. no
3. depends<...
Chemistry, 10.12.2020 17:40 shsbbdDnsgs3913
Can a book sitting on a desk represent each of Newton's Laws?
1. yes
2. no
3. depends
4. not applicable
Answers: 3
Chemistry, 21.06.2019 17:00
What were the success and failures that came to boyle’s excitements?
Answers: 1
Chemistry, 22.06.2019 05:30
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
Chemistry, 22.06.2019 06:00
Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?
Answers: 3
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
Answers: 1
Mathematics, 27.09.2019 00:00
Mathematics, 27.09.2019 00:00
English, 27.09.2019 00:00
Mathematics, 27.09.2019 00:00
Mathematics, 27.09.2019 00:00
Business, 27.09.2019 00:00
Law, 27.09.2019 00:00
Advanced Placement (AP), 27.09.2019 00:00
Mathematics, 27.09.2019 00:00
English, 27.09.2019 00:00
Mathematics, 27.09.2019 00:00
Mathematics, 27.09.2019 00:00