ng a rate law from the change in concentration over time A chemistry graduate student is studying the rate of this reaction: NH OH (aq) NIH, (aq)+H,O (aq) 4 He fills a reaction vessel with NH OH and measures its concentration as the reaction proceeds: time NH OH (minutes) 0 0.0900 M 0.0249 M 1.0 0.0145 M 2.0 0.0102 M 3.0 0.00787 M 4.0 Use this data to answer the following questions. k Write the rate law for this reaction. rate ఉ x10 Calculate the value of the rate constant k. k Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. X

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