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物质的量浓度3.\x05Ex.Howmanymillilitersof12.0Mhydrochloricacidcontain7.30gofHClsolute(36.46g/mol)?4.\x05WhatisthemassofH2SO4(98.09g/mol)in50.0mLof6.00Msulfuricacid?5.\x05HowmanygramsofNaOHaretherein2.50Lof0.3
题目详情
物质的量浓度
3.\x05Ex.How many milliliters of 12.0 M hydrochloric acid contain 7.30g of HCl solute (36.46g/mol)?
4.\x05What is the mass of H2SO4 (98.09 g/mol) in 50.0mL of 6.00M sulfuric acid?
5.\x05How many grams of NaOH are there in 2.50L of 0.343M solution?
3.\x05Ex.How many milliliters of 12.0 M hydrochloric acid contain 7.30g of HCl solute (36.46g/mol)?
4.\x05What is the mass of H2SO4 (98.09 g/mol) in 50.0mL of 6.00M sulfuric acid?
5.\x05How many grams of NaOH are there in 2.50L of 0.343M solution?
▼优质解答
答案和解析
盐酸体积为 ：7.30/36.46/12=0.0167 L 即 16.7 ml
H2SO4 质量为 ：98.09*0.05*6.00=29.4 g
NaOH质量为 ：2.50*0.343*40==34.3 g
H2SO4 质量为 ：98.09*0.05*6.00=29.4 g
NaOH质量为 ：2.50*0.343*40==34.3 g
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