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Nai cl 2 nacl i 2 6 tinii fluoride formerly found in

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___ NaI + ___ Cl 2 →___ NaCl + ___ I 2 6. Tin(II) fluoride, formerly found in many toothpastes, is produced according to the following reaction: ___ Sn (s) + ___ HF (g) → ___ SnF 2 (s) + ___ H 2 (g) (a) How many grams of HF are needed to produce 2.5 moles of SnF 2 ? (b) How many molecules of H 2 are produced by the reaction of 20.0 grams HF? (c) How many grams of SnF 2 can be made by reacting 7.42 x 10 24 molecules of HF? Game plan: moles SnF 2 → moles HF grams HF
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Chemistry Stoichiometry Unit Name: ___________________________ Stoichiometry Problems set Ω Date: __________________ Period: ___ Directions: Complete the stoichiometry problems below, showing the dimensional analysis work and circling your final answer(s). 1. Calculate the number of moles of water produced from the reaction of 4.2 mol of Al in the following reaction: 6 NH 4 ClO 4 + 10 Al → 5 Al 2 O 3 + 3 N 2 + 6 HCl + 9 H 2 O 2. Nitrogen and hydrogen gas react to form ammonia gas, NH 3 . Calculate the number of moles of nitrogen gas needed to produce 7.2 mol of ammonia. 3. How many moles of water can be formed when propane gas (C 3 H 8 ) reacts with 2.0 moles of oxygen gas in a complete combustion reaction? 4. If 20.0 grams of zinc reacts with hydrochloric acid in a single replacement reaction, how many grams of zinc chloride are produced?
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5. To produce 10.0 grams of NaCl, how many grams of chlorine gas must be reacted with sodium iodide? ___ NaI + ___ Cl 2 →___ NaCl + ___ I 2 6. Tin(II) fluoride, formerly found in many toothpastes, is produced according to the following reaction: __ Sn (s) + __ HF (g) → __SnF 2 (s) + __ H 2 (g) (a) How many moles of HF are needed to produce 9.40 g of SnF 2 ? (b) How many molecules of H 2 are produced by the reaction of 20.0 grams HF? (c) How many grams of SnF 2 can be made by reacting 7.42 x 10 24 molecules of HF?
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