Mole Relations in Balanced Equations Example Problems

These are worked chemistry problems showing how to calculate the number of moles of reactants or products in a balanced chemical equation. Mole Relations Problem #1 Determine the number of moles of N2O4 needed to react completely with 3.62 mol of N2H4 for the reaction 2 N2H4(l) N2O4(l) → 3 N2(g) 4 H2O(l). How to Solve the Problem The first step is to check to see that the chemical equation is balanced. Make sure the number of atoms of each element are the same on both sides of the equation. Remember to multiply the coefficient by all atoms following it. The coefficient is the number in front of a chemical formula. Multiply each subscript only by the atom right before it. The subscripts are the lower numbers found immediately following an atom. Once you verify the equation is balanced, you can establish the relationship between the number of moles of reactants and products. Find the relation between moles of N2H4 and N2O4 by using the coefficients of the balanced equation: 2 mol N2H4 is proportional to 1 mol N2O4 Therefore, the conversion factor is 1 mol N2O4/2 mol N2H4: moles N2O4 3.62 mol N2H4 x 1 mol N2O4/2 mol N2H4 moles N2O4 1.81 mol N2O4 Answer 1.81 mol N2O4 Mole Relations Problem #2 Determine the number of moles of N2 produced for the reaction 2 N2H4(l) N2O4(l) → 3 N2(g) 4 H2O(l) when the reaction begins with 1.24 moles of N2H4. Solution This chemical equation is balanced, so the molar ratio of reactants and products may be used. Find the relation between moles of N2H4 and N2 by using the coefficients of the balanced equation: 2 mol N2H4 is proportional to 3 mol N2 In this case, we want to go from moles of N2H4 to moles of N2, so the conversion factor is 3 mol N2/2 mol N2H4: moles N2 1.24 mol N2H4 x 3 mol N2/2 mol N2H4 moles N2 1.86 mol N2O4 Answer 1.86 mol N2 Tips for Success The keys to getting the correct answer are: Make sure the chemical equation is balanced.Use the coefficients in front of compounds to get molar ratios.Check to make sure you use the appropriate number of significant figures for atomic masses and report mass using the correct number of figures.

Analytical Study on the Employee Issues in an MNC

AN ANALYTICAL STUDY ON THE EMPLOYEES ISSUES IN A MNC ABSTRACT This study shows that how the different leadership theories, style and Tuckmans team building model can help to improve the behaviour of the employees at the organisation. A leader must have influence on his subordinates for encouraging them to work and achieve the predetermined goals. Different behavioural approaches help a person tin learning and Tuckmans model define how a team can be formed and work for achieving the organisational objectives. Different internal issues of the employees affect the performance of themselves and organisation, so it should be rectified and resolved as soon as possible before it has any negative affect on organisational culture. Top Management and leaders should take important necessary steps for resolving the internal issues of the employees at the organisation. The role of leadership can be fully realised in the organisation only when the appropriate leadership pattern is followed. This makes managers essential to understand and identify the various theories and styles are available. Leadership can be defined in general term as the process of influencing the behaviour of others to work willingly and enthusiastically for achieving predetermined goals. As according to Tennenbaum et al (1961), leadership is interpersonal influence exercised in a situation and directed through communication process, towards the attainment of a specified goal or goals. 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Rhetoric and Organizational Method Works Free Essays

Rhetorical Modes Quiz Complete the following chart to identify the purpose and structure of the various rhetorical modes used in academic writing. Provide at least two tips for writing each type of rhetorical device. Rhetorical mode Purpose Explain when or why each rhetorical mode is used. We will write a custom essay sample on Rhetoric and Organizational Method Works or any similar topic only for you Order Now Structure Explain what organizational method works best with each rhetorical mode. Tips Provide two tips for writing in each rhetorical mode. Narration The purpose of narration is to tell a story whether it is factual or fiction. Having a plot, characters, protagonise, conflicts, and theme. Strong details like how each of our senses enteracts with different people, place or things. Also make sure to have a guide for your story whether it is factual, fiction or both. Illustration Description Classification Process analysis Definition Comparison and contrast Cause and effect Persuasion Select one of the topics below and determine at least one rhetorical mode that would be appropriate for addressing the topic you selected. Write 100 to 150 words explaining the topic you selected, the rhetorical mode, and why you think this mode is most appropriate for addressing your topic. Pollution Workplace proposal for a new initiative Arguing to change a law Building a new park in your town Climate change Profile of your best friend or a family member I would like to explain pollution to you by showing you the cause and effects, because this way you will know what may cause pollution and how it effects us. Since pollution is one of the major issue that we have today, it is important that we do what we can to minimize it so that we are able to let the next generation experience this beautiful world of ours. How to cite Rhetoric and Organizational Method Works, Papers