a 0.7549 g sample of a compoun burns in O2 to produce 1.9061g of CO2 and 0.3370g H201.calculate the individual masses of ,c,h,and o in the 0.7549 sample2.determine the empirical formula of the compound.

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a0.7549gsampleofacompounburnsinO2toproduce1.9061gofCO2and0.3370gH201.calculatetheindividualmassesof,

a 0.7549 g sample of a compoun burns in O2 to produce 1.9061g of CO2 and 0.3370g H201.calculate the individual masses of ,c,h,and o in the 0.7549 sample2.determine the empirical formula of the compound.
a 0.7549 g sample of a compoun burns in O2 to produce 1.9061g of CO2 and 0.3370g H20
1.calculate the individual masses of ,c,h,and o in the 0.7549 sample
2.determine the empirical formula of the compound.

a 0.7549 g sample of a compoun burns in O2 to produce 1.9061g of CO2 and 0.3370g H201.calculate the individual masses of ,c,h,and o in the 0.7549 sample2.determine the empirical formula of the compound.
题目大致意思:0.7549 g的化合物试样在氧气中燃烧,生成1.9061 g的co2和0.3370g的H2O,要求:计算0.7549 g试样中C、H、O三种元素的质量;确定化合物的分子式
(1)C的质量=1.9061*12/44=0.5198
H的质量=0.3370*2/18=0.0374
O的质量=0.7549-0.5198-0.0374=0.1977
(2)C、H、O的物质的量的比=(0.5198/12):(0.0374):(0.1977/16)=7:6:2
根据这个比值来看,应该是苯甲酸了

a 0.7549 g sample of a compoun burns in O2 to produce 1.9061g of CO2 and 0.3370g H201.calculate the individual masses of ,c,h,and o in the 0.7549 sample2.determine the empirical formula of the compound. a sample of gas has a density of 1.96g/l at STP.Determine its molar mass. 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? If Sample is a class,________ is correct copying constructor of this class.a) void Sample(const int& a); b) void Sample(const int& a) const; c) Sample(const int& a); d) Sample(const int& a) const SAT2化学题,涉及randomnessIncreased randomness results under which of the following conditions?1.A 1L sample of He(g) and 1L sample of Ne(g) are mixed in a 2L flask.2.Ice melts.3.CaO(s) reacts with CO2(g) to form CaCO3(s).(A)1 only(B)2 only(C)1 a 英语翻译cell sample in a final volume of 100 ul. name of sample是什么意思 Sample of academic A 58g sample of a gaseous feul mixture contains 0.43 mole fraction C3H8. 这句话怎么理解?是样品...A 58g sample of a gaseous feul mixture contains 0.43 mole fraction C3H8. 这句话怎么理解?是样品含0.43mol 丙烷还是丙烷的摩尔 A 1.778g sample of a component of the light petroleum distillate called naphtha is found to yield5.450g CO2(g) and 2.602g H2O(l) on complete combustion.Use the masses of carbon dioxide,CO2,and water,H2O,to determine the empirical formula of the alkan sample of opening 怎么翻译 Sample of the product,where possible,if not a justification why it has not been possible to obtain a sample英翻中,打错了。 急需一篇英文文献The Relationship Between Parenting Styles andCreativity in a Sample of Jamaican Children a sample used for the shipping approval of products prior to shipment after mass production Why was the origin of life a sample step in the Earth's history? NO VALUE-COMMERCIAL SAMPLE.客户的邮件:We also need you send us a sample of its product for better evaluation.Please send like:NO VALUE-COMMERCIAL SAMPLE.我是刚刚从事外贸工作的. A 16.0 g sample of nickel metal is heated to 100.0°C and dropped into 51.0 g of water,initially at 23.0°C.Assuming that all the heat lost by the nickel is absorbed by the water,calculate the final temperature of the nickel and water.(The specific h 初三和高一化学题目求解维生素药片包含维生素500g, 所以其中包含了多少摩尔和多少分子的维生素?A sample of nitrogen gas has a volume of 1.75L at STP. How many mole of N2 are present?Calculate the molecules of each o