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Creating a rollover button, Tutorial: Creating a rollover button. Welcome to CorelDRAW a comprehensive vectorbased drawing program that lets you create professional. graphics. ...,

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Basic Chemistry Concepts




Basic Chemistry Concepts thumbnail Short summary:

Chemistry. Tutorial - Basic Chemistry Concepts. A compound X contains 63.3% Mn and 36.7% O by mass. When X is heated, oxygen gas is evolved and a new compound Y containing 72.0% Mn and 28.0% O is formed. ...


Long summary:

2.4g of a compound of C, H and O gave on combustion, 3.52g of CO2 and 1.44g of H 2 O. The relative molecular mass of the compound was found to be 60. (a) What are the masses of C, H and O in 2.4g of the compound? (b) What are the empirical and molecular formulae of the compounds?


 


Source: www.ntu.edu.sg

 

 


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