3) The empirical formula of a compound with molecules containing 12 carbon atoms

Question

3) The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6 oxygen atoms is (circle one answer, 5 points) 4) Which number correctly shows the result of the molecular mass calculation for 11:S0(7 Report the correct number of significant figures. Remember. do not round off until the final step! (circle one answer. 5 points) 51 Name or write the correct inorganic formula and formula mass for each of the following compounds. (Report the answer with 4 significant figures, 5 points each) 6) Consider a mixture consisting of sand in salt water. This mixture could be separated into its three components (sand, salt, and water) by first the mixture and then the remaining mixture. (circle one answer. 5 points) 7) There are protons, neutrons, and electrons in 131 gamma.

Explanation / Answer

Answers

Q3) option d The empirical formula is C6H7O3

Q4) option (b) 98.0794

Q5) a) HCl(Gas) 36.4609

b) CuCl2.5H2O 224.5255

c) ammonium carbonate 96.0855

Q6) option c, filtering and distilling

Q7) iodide(131) ion has 53 protons 78neutrons and 54 electrons

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