PH=10的氨水，它的质量浓度百分比是多少？怎么计算？ PH=10，[OH-]=10^-4mol/L.氨水的K=1.8X10^-5.氨水浓度约等于（10^-4）^2/1.8X10^-5=5.6*10^-4mol/L，溶液很稀，密度近似于水.1升溶液的质量约等于1000克，含有NH3的质量=17*5.6*10^-4=0.001克，质量百分比浓度是0.001/1000=0.0001%.
标况下，某氨水的百分比浓度为29.8%，其密度为0.91克/立方厘米，问(1)标况下，1体积水中溶解了多少体积的氨气？（2）此氨水的物质的量浓度为多少？（要有过程， (1)设标况下，1L水中溶解了xL的氨气，x/22.4*17/(x/22.4*17+1*1000)*100%29.8%（2）此氨水的物质的量浓度为c=1000*0.91*29.8%17
最低0.27元开通文库会员，查看完整内容>；原发布者：廖培龙廖培龙氨水浓度密度对照表.xlsx氨水浓度%比重/(kg/m3)氨水浓度%比重/(kg/m3)氨水浓度%比重/(kg/m3)0.000.120.240.360.480.600.720.840.961.081.201.321.441.561.681.801.922.042.162.282.402.522.642.762.883.003.123.243.361000999.6999.2998.8998.4998.0997.6997.2996.8996.3995.9995.5995.1994.7994.2993.8993.4992.9992.5992.0991.6991.2990.7990.3989.8989.4988.9988.4988.03.483.603.723.843.964.084.204.324.444.564.684.804.925.045.165.285.405.525.645.765.886.006.126.246.366.486.606.726.84987.5987.1986.6986.1985.7985.2984.7984.3983.8983.3982.9982.4981.9981.4981.0980.5980.0979.5979.0978.6978.1977.6977.1976.6976.1975.6975.2974.7974.26.967.087.207.327.447.567.687.807.928.048.168.288.408.528.648.768.889.009.129.249.369.489.609.729.849.9610.0810.2010.32973.7973.2972.7972.2971.7971.2970.7970.3969.8969.3968.8968.3967.8967.3966.8966.3965.8965.3964.8964.3963.9963.4962.9962.4961.9961.4960.9960.4959.9第1页，共3页氨水浓度密度对照表.xlsx氨水浓度%比重/(kg/m3)氨水浓度%。
