20.下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表.下列說(shuō)法正確的是 溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù) 4% 12% 16% 24% 28% 硫酸溶液的密度/ 查看更多

 

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下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表.下列說(shuō)法正確的是溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)( 。
溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù) 4% 12% 16% 24% 28%
硫酸溶液的密度(g/mL) 1.02 1.08 1.11 1.17 1.20
氨水的密度(g/mL) 0.98 0.95 0.94 0.91 0.90

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下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表.下列說(shuō)法正確的是溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)(  )
溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù) 4% 12% 16% 24% 28%
硫酸溶液的密度(g/mL) 1.02 1.08 1.11 1.17 1.20
氨水的密度(g/mL) 0.98 0.95 0.94 0.91 0.90
A.質(zhì)量分?jǐn)?shù)為28%的硫酸加入等質(zhì)量水,所得溶液的密度小于1.08g/mL
B.質(zhì)量分?jǐn)?shù)為24%的氨水加入等體積水,所得溶液的密度等于0.95g/mL
C.質(zhì)量分?jǐn)?shù)為28%的氨水加入等質(zhì)量水,所得溶液的質(zhì)量分?jǐn)?shù)等于14%
D.質(zhì)量分?jǐn)?shù)為24%的硫酸加入等體積水,所得溶液的密度大于1.08g/mL

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下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表.下列說(shuō)法正確的是溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)( )
溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)4%12%16%24%28%
硫酸溶液的密度(g/mL)1.021.081.111.171.20
氨水的密度(g/mL)0.980.950.940.910.90

A.質(zhì)量分?jǐn)?shù)為28%的硫酸加入等質(zhì)量水,所得溶液的密度小于1.08g/mL
B.質(zhì)量分?jǐn)?shù)為24%的氨水加入等體積水,所得溶液的密度等于0.95g/mL
C.質(zhì)量分?jǐn)?shù)為28%的氨水加入等質(zhì)量水,所得溶液的質(zhì)量分?jǐn)?shù)等于14%
D.質(zhì)量分?jǐn)?shù)為24%的硫酸加入等體積水,所得溶液的密度大于1.08g/mL

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下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表.下列說(shuō)法正確的是
溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)4%12%16%24%28%
硫酸溶液的密度(g/mL)1.021.081.111.171.20
氨水的密度(g/mL)0.980.950.940.910.90


  1. A.
    質(zhì)量分?jǐn)?shù)為28%的硫酸加入等質(zhì)量水,所得溶液的密度大于1.08g/mL
  2. B.
    質(zhì)量分?jǐn)?shù)為24%的硫酸加入等體積水,所得溶液的密度等于1.08g/mL
  3. C.
    質(zhì)量分?jǐn)?shù)為28%的氨水加入等質(zhì)量水,所得溶液的密度等于0.95g/mL
  4. D.
    質(zhì)量分?jǐn)?shù)為24%的氨水加入等體積水,所得溶液的質(zhì)量分?jǐn)?shù)大于12%

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下表是20℃時(shí)硫酸溶液和氨水的密度與其溶質(zhì)的質(zhì)量分?jǐn)?shù)對(duì)照表。下列說(shuō)法正確的是

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A.質(zhì)量分?jǐn)?shù)為28%的硫酸加入等質(zhì)量水,所得溶液的密度小于1.08g/mL
B.質(zhì)量分?jǐn)?shù)為24%的硫酸加入等體積水,所得溶液的密度大于1.08g/mL
C.質(zhì)量分?jǐn)?shù)為28%的氨水加入等質(zhì)量水,所得溶液的質(zhì)量分?jǐn)?shù)等于14%
D.質(zhì)量分?jǐn)?shù)為24%的氨水加入等體積水,所得溶液的密度等于0.95g/mL

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