Convection a occurs is solids b occurs in fluids requires c physical contact between molecules d is the method of heat transfer used by the sun

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Can anyone answer these questions? ? i need it before 1: 00pm today