Chemistry, 02.03.2021 21:20 colemomdad11
el amoniaco concentrado NH3 al 28,0% p/p tiene una densidad de 0,899g/ml. ¿qué volumen de este reactivo se debe diluir a un volumen final de 1.00x10^3mL para obtener una solución 0,300 M de NH3?
Answers: 1
Chemistry, 21.06.2019 18:00
Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you
Answers: 3
Chemistry, 22.06.2019 13:00
Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 22:30
Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.
Answers: 1
el amoniaco concentrado NH3 al 28,0% p/p tiene una densidad de 0,899g/ml. ¿qué volumen de este react...
Mathematics, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40
Computers and Technology, 02.09.2021 19:40
Chemistry, 02.09.2021 19:40
Advanced Placement (AP), 02.09.2021 19:40
Business, 02.09.2021 19:40
Mathematics, 02.09.2021 19:40