1、一、硝酸濃度與比重對照表(20/4)波美度Be比重HNO3(%)每升酸含HNO3克數(shù)波美度Be比重HNO3(%)每升酸含HNO3克數(shù)0.53.67.511.315.018.522.123.524.926.227.528.729.831.032.133.234.335.336.337.238.11.00361.02561.05431.08421.11501.14691.18001.19341.20711.22051.23351.24631.25911.27191.28471.29751.31001.32191.33361.34491.3560101520253032343638404244464

2、8505254565810.0451.28105.4162.6223.0286.7354.0381.9410.4439.4468.7498.5528.8559.6591.0622.8655.0687.4720.1753.1768.538.939.740.441.141.842.443.043.644.144.745.145.646.146.546.847.247.547.848.048.449.21.36671.37691.38661.39591.40481.41341.42181.42981.43751.44501.45211.45891.46551.47161.47731.48261.48

3、731.49121.49521.50081.51296062646668707274767880828486889092949698100820.0853.7887.4921.3955.3989.41024.010581093112711621196123112661300133413681402143514711513C=1000PW/M 其中C是物質(zhì)的量濃度 P是硝酸的密度，注意單位是g/ml W指的是硝酸的質(zhì)量分數(shù)，也就是65%-68%，M指的是硝酸的摩爾質(zhì)量（63g/mol) 二、硫酸質(zhì)量分數(shù)濃度、密度對照表硫酸溶液質(zhì)量百分濃度密度g /cm-3 100.0 %1.830594.0 %

4、1.831290.0 %1.814484.0 %1.769380.0 %1.727274.0 %1.657470.0 %1.610564.0 %1.542160.0 %1.498754.0 %1.435150.0 %1.395244.0 %1.338640.0 %1.302834.0 %1.251830.0 %1.219124.0 %1.171420.0 %1.139814.0 %1.087410.0 %1.06615.0%1.03181.0 %1.0049三、濃度單位的換算公式： 1）當量濃度=1000.d.質(zhì)量百分濃度/E 2）質(zhì)量百分濃度=當量濃度E/1000.d 3）摩爾濃度=1000.d質(zhì)量百分濃度/M 4）質(zhì)量百分濃度=質(zhì)量-體積濃度（毫克/升）/104.d 5）質(zhì)量-體積濃度（mg/L）=104質(zhì)量百分濃度 5、ppm是重量的百分率，ppm=mg/kg=mg/L 即:1ppm=1ppm=1000ug/L 1ppb=1ug/L=0.001mg 式中：E溶質(zhì)的克當量； d溶液的比重； M溶質(zhì)的摩爾質(zhì)量； 體積濃度是用每立方米的大氣中含有污染物的體積數(shù)（立方厘米）或（ml/m3）來表示， 常用的表示方法是ppm，即1ppm=1立方厘米/立方米=10-6。除ppm外，還有ppb和ppt， 他們之間的關(guān)系是： 1p