Oct 09, 2020 · You are given a mixture of KCl and KClO3. You add MnO2 as a catalyst to the mixture in a test tube and heat the test tube to achieve constant mass. Determine the percent composition of KClO3 in the mixture. Given:K:39.10 g/mole, Cl:35.45 g/mole, O:16.00 g/mole heat 2KClO3(s) --------- 2KCl(s)+ 3O2(g) Mass of Test tube + MnO2:32.0118 g Test tube + MnO2 + KClO3 + KCl:33.2282 g
Solved:Question 9 Chemical Isomers MUST ALWAYS Have biology questions and answers; Question 9 Chemical Isomers MUST ALWAYS Have Identical O Chemical Bonds Shapes Atomic Masses O Chemical Bonds Shapes Atomic Masses. This problem has been solved! See the answer. Show transcribed image text. Expert Answer . Previous question Next question Transcribed Image Text from this Question. Question 9
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What is the mass in grams of NO - in.answers.yahooApr 08, 2021 · Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and, as of 20 April 2021 (Eastern Time), the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account.
What is the number of moles of O2 - ph.answers.yahooApr 29, 2020 · Reaction:2 H2O2 ---> 2 H2O + O2 A student prepares two small beakers, adding 20.0 mL of 9.77 M H2O2 (aq) to each one. Each beaker is placed on an electronic balance. The student adds 0.10 g of MnO2 (s) to the second beaker and records the mass of each beaker and its contents at 10-second interval for one minute. For beaker 2, during the 60 second period (Mass of Beaker 1 + H2O2 is 43.09
Oct 26, 2006 · Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and, as of 20 April 2021 (Eastern Time), the Yahoo Answers website will be in read-only mode. oxygen was a natural standard for an atomic mass scale. Then, chemical analysis would allow one to determine the atomic mass of any other element which formed a compound with oxygen. And
help with chemical formula? explain it please? Yahoo AnswersJul 05, 2011 · Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and, as of 20 April 2021 (Eastern Time), the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account.
reacting masses for AS level chemistry? Yahoo AnswersOct 03, 2011 · You would need information such as a balanced chemical equation. Here is the example I will use. The conversion of Ammonia (NH3) to Nitrous Oxide. The balanced chemical equation looks like . 4NH3 + 5O2 ---> 4NO + 6H2O. From this you can find the molar ratio, or how many moles you need of O2 to react with a number of moles of NH3.
Feb 25, 2011 · A science student carried out an experiment to examine the burning of magnesium. She determined the mass of the magnesium. Then she burned it being careful to collect all the pieces of white ash. Finally, she determined the mass of the ash. Mass of Mg:3.0 grams Mass of Ash:5.0 grams Explain why there appears to be a discrepancy in the mass. Thanks.