配制0.2%的过氧乙酸溶液1000ml,应取5%的过氧乙酸溶液()
- A400ml
- B40ml
- C20ml
- D10ml
- E4ml
配制0.2%的过氧乙酸溶液1000ml,应取5%的过氧乙酸溶液()
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1、欲配制1%过氧乙酸1000ml,需要20%的过氧乙酸原液和灭菌蒸馏水的ml数
欲配制1%过氧乙酸1000ml,需要20%的过氧乙酸原液和灭菌蒸馏水的ml数分别为()A50ml,950mlB100ml,900mlC150ml,850mlD200ml,800mlE250ml,750ml
2、配制0.2%的过氧乙酸溶液1000ml,应取5%的过氧乙酸溶液的量是
配制0.2%的过氧乙酸溶液1000ml,应取5%的过氧乙酸溶液的量是A10mlB20mlC30mlD40mlE50ml
3、欲配制1000mL,0.1mol/LHCl溶液,应取浓盐酸(12mol/L)
欲配制1000mL,0.1mol/LHCl溶液,应取浓盐酸(12mol/L)多少毫升?()A0.84mLB8.4mLC1.2mLD2.4mL
4、欲配制1%过氧乙酸1000ml,需要20%的过氧乙酸原液和灭菌蒸馏水的ml数
欲配制1%过氧乙酸1000ml,需要20%的过氧乙酸原液和灭菌蒸馏水的ml数分别为()A50ml,950mlB100ml,900mlC150ml,850mlD200ml,800mlE250ml,750ml
5、欲配制1000ml0.1mol/L氢氧化钠溶液,应取20mol/L的饱和氢氧
欲配制1000ml0.1mol/L氢氧化钠溶液,应取20mol/L的饱和氢氧化钠溶液多少ml?()A0.5mlB5mlC0.2mlD80ml
配制0.5%过氧乙酸2000ml,需2%过氧乙酸A100mlB200mlC300mlD400mlE500ml