what is the chemical formula of the compound如题

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• what is the chemical formula of the compound如题
• A compound contains only carbon,hydrogen,and oxygen.Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O.The molar mass of the compound is 176.1 g/mol.What are the empirical and molecular formulas of the compound?(Type your answer using the format CO2 for CO2.)empirical formula _____________molecular formula _____________
• Combustion of a 0.9835-g sample of a compound containing only carbon,hydrogen,and oxygen produced 1.900 g of CO2 and 1.070 g of H2O.a.What isthe empirical formula of the compound?
• 已知点A(-1,0)和点B（0,1）,在坐标轴上的确定点P,使得三角形ABP为等腰三角形,则满足条件的P点共有
• log4（12-2^（X+1))=X+1/2