Chemistry, 13.08.2019 05:10 gachaperson123
Acube made of platinum (pt) has an edge length of 1.0 cm. (a) calculate the number of pt atoms in the cube. (b) atoms are spherical in shape. therefore, the pt atoms in the cube cannot fill all the available space. if only 74 percent of the space inside the cube is taken up by pt atoms, calculate the radius in picometers of a pt atom. the density pt is 21.45 g/cm3, and the mass of a single pt atom is 3.240 x 10^-22 g. (the volume of a sphere of radius r is 4/5ïr^3).
Answers: 2
Chemistry, 21.06.2019 22:10
What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance
Answers: 2
Chemistry, 22.06.2019 10:50
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Chemistry, 22.06.2019 12:10
|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done
Answers: 3
Acube made of platinum (pt) has an edge length of 1.0 cm. (a) calculate the number of pt atoms in th...
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