Chemistry, 13.08.2019 04:30 6946599268
(a) describe rutherford's experiment and how the results revealed the nuclear structure of the atom. (b) consider the 23na atom. given that the radius and mass of the nucleus are 3.04 x 10^-15 m and 3.82 x 10^-23 g, respectively, calculate the density of the nucleus in g/cm^3. the radius of a 23-na atom is 186 pm. calculate the density of the space occupied by the electrons outside the nucleus in the sodium atom. do your results support rutherford's model of an atom? (the volume of a sphere of radius r is 4/5ïr^3
Answers: 2
Chemistry, 21.06.2019 13:20
An aqueous solution of calcium hydroxide is standardized by titration with a 0.120 m solution of hydrobromic acid. if 16.5 ml of base are required to neutralize 27.5 ml of the acid, what is the molarity of the calcium hydroxide solution?
Answers: 3
Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
(a) describe rutherford's experiment and how the results revealed the nuclear structure of the atom....
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