Chemistry, 14.06.2021 19:40 nickames202otpo7q
Đốt cháy hoàn toàn m gam hợp chất hữu cơ A( A chỉ chứa C, H,N và A<50)bằng một lượng không khí vừa đủ thu được 8,96 lít CO2;12,6 gam H2O;69,44lít N2( ở đktc). Xác định m và CTPT của A, biết trong không khí N2 chiếm 80% về thể tích
Answers: 2
Chemistry, 22.06.2019 07:10
An experimental procedure requires a 10 ml of acid to be dissolved
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Chemistry, 22.06.2019 17:30
Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world
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Chemistry, 22.06.2019 22:40
Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution
Answers: 1
Đốt cháy hoàn toàn m gam hợp chất hữu cơ A( A chỉ chứa C, H,N và A<50)bằng một lượng không khí vừ...
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