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See if you can complete the following table using only what is on this page. Hint: Two of the entries are for the sames element. Element Nuclear Atomic Mass Symbol Symbol Number Number Be C1 dica] References] Use the References to access important values if needed for this question. Submit Answer 17 8 Retry Entire Group Protons Neutrons 20 Electrons in Neutral Atom 4 4 more group attempts remaining
ne kererences to access important values if needed for this question. The liquid cyclohexanone has a density of 0.948 g/mL at 20.0 °C. If a 68.8 mL sample of this compound is provided, what is the mass of the liquid at 20.0 °C that must be provided? Mass= 9 Submit Answer Retry Entire Group 4 more group attempts remaining
Use the References to access important values if needed for this question. The liquid 1,2-dibromobenzene has a density of 1.98 g/mL at 20.0°C. If a 104 gram sample of this compound is needed, what volume of the liquid at 20.0°C must be provided? Volume = mL Submit Answer Retry Entire Group 4 more group attempts remaining
(1) If a 58.1 g sample of the liquid 1-decanethiol has a volume of 68.8 ml, what is the specific gravity of the compound? Take the density of water to be 1.00 g/mL. specific gravity= eded for this question. (2) The liquid 1-decanethiol is insoluble in water. If approximately equal volumes of water and 1-decanethiol were mixed in a separatory funnel, would the water layer end up on the top or on the bottom? Submit Answer Retry Entire Group 4 more group attempts remaining
Review Topical References) A general chemistry student found a chunk of metal in the basement of a friend's house. To figure out what it was, she used the ideas just developed in class about density. She measured the mass of the metal to be 206.2 grams. Then she dropped the metal into a measuring cup and found that it displaced 18.0 mL of water. Calculate the density of the metal. Density= g/mL Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium Nickel Copper Silver Lead Mercury Gold 7.25 8.91 8.94 10.50 11.34 13.60 19.28 Tungsten 19.38 Platinum 21.46 This metal is most likely Previous Evit