If there is no net force on an object, then the object will
a) continue to accelerate
b...
Chemistry, 09.01.2020 05:31 Justadumbemo
If there is no net force on an object, then the object will
a) continue to accelerate
b) begin moving slow down
c) maintain it's rate of speed
d) have to be at rest
Answers: 2
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
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 11:40
Enzymes affect the reactions in living cells by changing the
Answers: 3
Chemistry, 22.06.2019 16:30
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4
Answers: 3
Spanish, 25.02.2021 23:10
English, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Spanish, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Social Studies, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Mathematics, 25.02.2021 23:10
Biology, 25.02.2021 23:10