Chemistry, 15.10.2020 01:01 b2cutie456
Un trozo irregular de metal que pesa 109.2 g se colocó
en una probeta con 21.0 mL de agua. El volumen total del agua más el trozo de metal fue de 33.2 mL.
a. ¿Cuál es la densidad del metal?
b. Con base en la lista de densidades, ¿de cuál metal po-
dríat ratarse?
c. ¿Por qué no se puede estar seguro por completo de
la identidad de este metal con base en este análisis?
Answers: 2
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
Chemistry, 23.06.2019 00:50
50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)
Answers: 3
Chemistry, 23.06.2019 06:20
Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table
Answers: 1
Un trozo irregular de metal que pesa 109.2 g se colocó
en una probeta con 21.0 mL de agua. El volum...
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