題目列表(包括答案和解析)
反應(yīng)時(shí)間 |
t0 |
t1 |
t2 |
t3 |
t4 |
t5 |
燒杯和藥品質(zhì)量/g |
210.0 |
206.7 |
204.6 |
203.9 |
203.4 |
203.4 |
求:(1)混合物中NaHCO3的質(zhì)量分?jǐn)?shù)是___________,計(jì)算步驟為:
(2)反應(yīng)后溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)是___________,計(jì)算步驟為:
反應(yīng)時(shí)間 | t0 | t1 | t2 | t3 | t4 | t5 |
燒杯和藥品質(zhì)量/g | 210.0 | 206.7 | 204.6 | 203.9 | 203.4 | 203.4 |
反應(yīng)時(shí)間 | t0 | t1 | t2 | t3 | t4 | t5 |
燒杯和藥品質(zhì)量/g | 210.0 | 206.7 | 204.6 | 203.9 | 203.4 | 203.4 |
反應(yīng)時(shí)間 | t0 | t1 | t2 | t3 | t4 | t5 |
燒杯和藥品質(zhì)量/g | 210.0 | 206.7 | 204.6 | 203.9 | 203.4 | 203.4 |
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