A student performs a spectrophotometric analysis using standardaddition calibration and obtains a linear relationship with a slopeof 1.00 a.u./ppm and a y-intercept of 0.960 a.u. What is thex-intercept of the regression?
How many grams of ATP are needed to prepare 0.34 L of a 85.0 mMsolution? The anhydrous molecular weight of ATP is 478.2 g/mole,the ATP powder being used has 3.0 moles of water and 2.0 moles ofNa+ per mole.
chemistry textbook reports that the activity coefficient forhydronium ion H3O+ is 0.933 at 0.005 ionicstrength. What would be the activity coefficient of a hydronium ionat an ionic strength of 0.015?
