Editing Review Homework For More Mole Concept Test
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<b>Part I Please write the appropriate chemical formula or chemical name for the following. Make sure to give symbols & charges of each ion before writing correct chemical formula.</b><br> <br> a) Trichlorine octabromide<br> <br> <br> b) Fe<sub>2</sub>(H<sub>1</sub>P<sub>1</sub>O<sub>3</sub>)<sub>3</sub><br> <br> <br> c) Ammonium carbonate<br> <br> <br> d) Silicon monophosphide<br> <br> <br> e) O<sub>1</sub>Br<sub>5</sub><br> <br> <br> f) Cobalt (III) sulfate<br> <br> <br> g) Cu<sub>1</sub>(C<sub>2</sub>O<sub>4</sub>)<sub>1</sub><br> <br> <Br> h) Silver nitrate<br> <br> <br> <br> i) Zn<sub>3</sub>(P<sub>1</sub>O<sub>4</sub>)<sub>2</sub><br> <br> <br> <br> j) N<sub>2</sub>Cl<sub>2</sub><br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <b>Part II Answer the following questions showing all work.</b><br> <br> a) How many grams in 23.7 liters of chlorine gas (Cl<sub>2</sub>) @ <nowiki>STP</nowiki>?<br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <br> <br> b) How many molecules in 24.5 grams of water?<br> <br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <Br> <br> <br> c) How many f.u. do I have if I have 14.5grams of aluminum chloride?<br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <br> <br> d) How many liters of N<sub>2</sub> in 3.4E24 molecules of this gas.<br>(The element N is not found alone in nature but instead as in two's so it is actually a molecule)<br> <br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <Br> <br> <br> <br> <br> <br> <br> <br> <Br> e. How many grams of Sodium carbonate do you need to add to get 452mL of a 0.728M solution? <b>(CP/level2 Learner DO NOT DO THIS PROBLEM)</b><br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <b>Part III Answer the following question showing all work</b><br> <br> a. What is the percent composition of K<sub>2</sub>(<nowiki>SO</nowiki><sub>3</sub>)<sub>1</sub> ?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> b. A compound consists of 17.6% sodium (Na), 39.7% chromium (Cr), and 42.7% oxygen (O). What is the empirical formula (EF)?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> c. A molecular compound consists of 54.5% C, 13.6% H and 31.8% N. The molar mass of the compound is 176g/mole. What is the empirical formula (EF) and molecular formula (MF). <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <Br> <br> Answer: Part I : Can't show without giving answer<br> Part II : <br> a. 75.1g Cl<sub>2</sub> @<nowiki>STP</nowiki><br> b. 8.19E23 molecules H<sub>2</sub>O<br> c. 6.51E22 f.u. Al<sub>1</sub>Cl<sub>3</sub><br> d. 130L (or 1.3E2L) N<sub>2</sub> @<nowiki>STP</nowiki><br> e. 34.9g of solid (did not give chemical formula because you need to determine it for problem) <br> Part III : <br> a. K, 49.4%, S, 20.2%, O, 30.4% <br> b. Na<sub>2</sub>(Cr<sub>2</sub>O<sub>7</sub>)<sub>1</sub><br> c. C<sub>8</sub>H<sub>24</sub>N<sub>4</sub> and C<sub>2</sub>H<sub>6</sub>N<sub>1</sub><br> <br>
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