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Interpretation: This is to be explained that a law is a summary of observed behavior.
Concept Introduction: Scientific method is a systematic way of collecting evidence to support theories/ concepts. This helps to explain the nature around us. In scientific disciplines, the terms, “model”, “observation”, “theory” and “law” hold different connotations a group of phenomena.
Answer to Problem 9STP
The statement that depicts the relationship between variables is known asscientific law.
Explanation of Solution
Law summarizes a set of observation about natural phenomena. It is based on hypotheses and evidences. For example: Newton’s law of motion. Observations are essential in the subject chemistry. Chemists use observations to collect as well as record the data. Based on calculations. For example: Newton observe the apples fall down from the tree.
In science, the laws are similar to scientific theories which could be used asprinciples for predicting the behavior of the natural world. Both are valid if it is supportedby observations and experimental evidences. Scientific law can be determined as the rules inwhich the nature behave under certain conditions. The behaviors that could be expressed asequations are termed as laws.
Chapter 1 Solutions
World of Chemistry, 3rd edition
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- Draw the mechanism for the following Friedel-Craft reaction. AlBr3 Brarrow_forward(a) Draw the structures of A and B in the following reaction. (i) NaNH2, NH3(1) A + B (ii) H3O+arrow_forwardFor the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →> NO₂+ NO3_(K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → → NO2 + O2 + NO (K2) NO + N2O5- NO2 + NO2 + NO2 (K3) d[N₂O5] __2k‚k₂[N2O5] Indicate whether the following rate expression is acceptable: dt k₁₁+ k₂arrow_forward
- Consider the following decomposition reaction of N2O5(g): For the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 → NO2 + NO3 (K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → NO2 + O2 + NO (K2) NO + N2O5 → NO2 + NO2 + NO2 (K3) Indicate whether the following rate expression is acceptable: d[N2O5] = -k₁[N₂O₂] + K¸₁[NO₂][NO3] - K¸[NO₂]³ dtarrow_forwardIn a reaction of A + B to give C, another compound other than A, B or C may appear in the kinetic equation.arrow_forwardFor the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →> NO₂+ NO3_(K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → → NO2 + O2 + NO (K2) NO + N2O5- NO2 + NO2 + NO2 (K3) d[N₂O5] __2k‚k₂[N2O5] Indicate whether the following rate expression is acceptable: dt k₁₁+ k₂arrow_forward
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