When coding a number in scientific notation, if you move the decimal point to the left, in order to get back to the original value of the number, you must multiply the new value by a (negative, positive) power of 10.
1. negative 2. positive

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .