duced when 25.0 g of O2 reacts. ANSWER 27.5 g of CO2 QUESTIONS AND PROBLEMS 7.7 Mass Calculations for Reactions 7.66 Iron(III) oxide reacts with monoxide. LEARNING GOAL Given the mass in grams of a substance in a reaction, calculate the mass in grams of another substance in the reaction. Fe2O3(s) + 3C(s) 7.63 Sodium reacts with oxygen to produce sodium oxide. a. How many grams of C Fe 02? b. How many grams of C reacts? c. How many grams of Fe2O3 reacts? Nitrogen dioxide and w and nitrogen oxide. 4Na(s) + O2(8) 2Na,O(s) a. How many grams of Na20 are produced when 57.5 g of Na reacts? b. If have 18.0 g of Na, how many grams of O2 are needed you for the reaction? c. How many grams of O2 are needed ina reaction that duces 75.0 g of Na20? pro- 7.67 7.64 Nitrogen gas reacts with hydrogen gas to produce ammonia. 2NH3(8) 3NO2(8) + H20(E N2(g) + 3H2(8) a. How many grams NO2? b. How many grams c. How many grams a. If you have 3.64 g of H2, how many grams of NH3 can be produced? b. How many grams of H2 are needed to react with 2.80 g of N2? c. How many grams of NH3 can be produced from 12.0 g of H2? 7.68 Calcium cyanamide ate and ammonia. Ammonia and oxygen react to form nitrogen and water. CaCN2(s) + 3H 7.65

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.