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≥0.7IU/mL,≥50g/L ≥0.8IU/mL,≥40g/L ≥0.7IU/mL,≥40g/L ≥0.8IU/mL,≥50g/L >0.7IU/mL,>50g/L
-2.3g +2.9g +1.2g -3.8g -7.5g
-2,3g +2.9g +1.2g -3.8g -7.5g
-2.3g +2.9g +1.2g -3.8g -7.5g
25℃时的硝酸铵饱和溶液中,溶液与溶质的质量比为100:40 25℃时,100g硝酸铵的饱和溶液中含有硝酸铵40g 25℃时,在100g水中最多可溶解硝酸铵40g 25℃时,硝酸铵的饱和溶液中含有硝酸铵40g
-2,3g +2.9g +1.2g -3.8g -7.5g
≥0.7IU/ml,≥50g/L ≥0.8IU/ml,≥40g/L ≥0.7IU/ml,≥40g/L ≥0.8IU/ml,≥50g/L >0.7IU/ml,>50g/L
≥0.7IU/ml,≥50g/L ≥0.8IU/ml,≥40g/L ≥0.7IU/ml,≥40g/L ≥0.8IU/ml,≥50g/L >0.7IU/ml,>50g/L
100g水中最多能溶解某物质40g,则该物质的溶解度为40g 4℃时,溶质N.的饱和溶液120g中含N 20g,所以4℃时,溶质N.的溶解度为20g 一定温度下,物质M.的饱和溶液100g中含M.物质30g,则物质M.在该温度时的溶解度为30g 20℃时,50g水中溶有溶质P 20g,则物质P.在20℃时的溶解度为40g
≥0.71U/ml,≥50g/L ≥0.81U/ml,≥40g/L ≥0.71U/ml,≥40g/L ≥0.81U/ml,≥50g/L >0.71U/ml,>50g/L
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