After decaying for 7 days, a sample of fermium-257 contained 0.0704 mole. How many atoms of fermlum-257 is this?

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 ) .

The compound formed from 2 atoms of hydrogen and one atom of oxygen is

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4