下列各组水溶液等体积相混合时，哪些可以作为缓冲溶液，为什么?[tex=10.857x1.571]Q5GSom8RnssuSOwQeHZdXzT5c7w+fcSTY2TOSlLydmmkj9WkCCfU1mEenVflbIU0[/tex] 和[tex=10.571x1.571]QwXoCY80HnfirL66mH2a+CXCT2HswxFm/o9ic+Semovs1PaCw0EXNpZwdnrhH1ei[/tex] 。
举一反三
- 下列各组水溶液等体积相混合时，哪些可以作为缓冲溶液，为什么?[tex=11.0x1.571]WqIRY5/sALWRQtFKUz3Mq98MWRBlnn59/Mi+XTvcsZHVGcYzU0xmIG5o7czStoJX[/tex] 和[tex=10.429x1.571]WKkWQweYVt2hBeAPHloJGQNQqRRenJUPxB8dm0BPpJyFa2yk4BMojKpviZjImTAy[/tex]
- 下列各组水溶液，当将其等体积相混合时，哪些组可以用作缓冲溶液，为什么？(1) [tex=10.357x1.571]wqeOYjgMPDqEo8SIBRtesG4vdA4srJ63vHPxkAW1qek/sCBT15uSeBrQxMms4rP9q0TSe5trvcoZRTmvJAaGgK7SB/aaVhNiXOYlcG6Ow1U=[/tex] 和 [tex=9.357x1.571]CO93LafWk97JvY57jISureYbGtuKnUJkBIVtdfwSkVWzM1YANQjU3QboVEzusLNfPDh4jgwtHpc60EW5llPlVT+KEqpfKjFgcsGCdUp9QOM=[/tex](2) [tex=9.357x1.571]CO93LafWk97JvY57jISurY/tnu2nEqP8de6QceuQiWKannHaJakHvSRS4epwSB1DY/neZh5vEHVz8AL2ileL+U0BUXu34yP/fOhPhyl39Qg=[/tex] 和 [tex=10.071x1.571]cjQSCueTyIX/55v7lhH/0PWU3eY2TBusdAMBQuIvF9ooDUjYz2mmlK0oalBiBZh72yCr+ssD18oBkfRUNfxLQNYly57t7ujyyrPJkCfQzzM=[/tex](3) [tex=9.357x1.571]CO93LafWk97JvY57jISurY/tnu2nEqP8de6QceuQiWKannHaJakHvSRS4epwSB1DY/neZh5vEHVz8AL2ileL+U0BUXu34yP/fOhPhyl39Qg=[/tex] 和 [tex=10.714x1.571]8OF+3WH0xOYiNX6+eg8xT5R813xZb9FOA3T16v1X/RiuxyvF/837CZWGbBk4U/9EFHu0eWehQuL/slqm3AdvyyXV5g7yurHaLzQLHauqHG0=[/tex](4) [tex=10.214x1.571]HB/KMIjbSRvc6INx7qBFuSDmwKOG0YZioalPeCI8i4WSThznJIoVX9PsXtHTyNzjMvZFyYVnuGuok3h6UNLoi1TLx5Q52V0THOaYBlKT6IA=[/tex]和 [tex=10.857x1.571]wqeOYjgMPDqEo8SIBRtesD/6St1IFLJlo84HmpD2AblN9sWevK453qEwzjkZNia2mSENlq/c0Z0jgOZ9hG/lSAtfKfrAxEdRnGYRX1gH4Cs=[/tex]
- 计算下列溶液的 [tex=1.357x1.214]5Y4aY4NNGp2CUHfWC5RWGA==[/tex]值: (1) [tex=7.0x1.214]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUErNrfRxNWc9rZfAJZon2JHg==[/tex]溶液与 [tex=9.286x1.429]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUEh/4zGAr1/a0N5ftURULQPMrc1M8ApGthJQ1TfwKMDiPpWp0PXQtiJRE7sgES9bXB[/tex]等体积混合; (2)[tex=7.214x1.214]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUESE39SbbABSRHbudiAbi4WA==[/tex]溶液与 [tex=9.286x1.429]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUEh/4zGAr1/a0N5ftURULQPMrc1M8ApGthJQ1TfwKMDiPpWp0PXQtiJRE7sgES9bXB[/tex]等体积混合; (3) [tex=7.0x1.214]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUErNrfRxNWc9rZfAJZon2JHg==[/tex]溶液与 [tex=8.714x1.429]5uMK7aiecx3gzSur6X05t13eugsYvBmgl7n1JY9gbRTnmb6xercsuig7ju1YFpUEu8Gn14PPT1QVQ//q6zy2qEl6F7uDaggHKOX4YcNJe/0=[/tex] 溶液等体积混合。
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']