Chemistry, 25.01.2021 20:30 AllisonMcruther
Predict whether a reaction occurs, and if so, write on a separate piece of paper the balanced total and net ionic equations (in the field provided you only need to input the sum of the coefficients of the net ionic equation, so enter a whole number, e. g. 0, 1, 2, 3, etc): magnesium bromide (aq) potassium acetate
Answers: 1
Chemistry, 22.06.2019 05:20, barry14201
Identify and describe the three ways that mutations affect organisms.
Answers: 1
Chemistry, 22.06.2019 05:30, MansellS5529
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 08:00, juliannxkim
Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.
Answers: 2
Predict whether a reaction occurs, and if so, write on a separate piece of paper the balanced total...
Mathematics, 25.06.2020 08:01
Mathematics, 25.06.2020 08:01
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Mathematics, 25.06.2020 08:01