化学兴趣小组探究碳酸氢钠、氯化钾、氯化钠和氯化铵的溶解性时，查阅资料如下：

表1物质在不同温度时的溶解度

                                                                                                                                                                                                                                                                

温度/℃		0	10	20	30
溶解度/g	NaHCO3	6.9	8.2	9.6	11.1
	KCl	27.6	31.0	34.0	37.0
	NaCl	35.7	35.8	36.0	36.3
	NH4Cl	29.4	33.3	37.2	41.4

表2溶解度的相对大小（20℃）

                                                                                                                                                

溶解度/g	一般称为
<0.01	难溶
0.01~1	微溶
1~10	可溶
>10	易溶

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