Given the balanced equation for the reaction of butane and oxygen: 2C4H10 + 13O2 > 8CO2 + 10H2O + energy How many moles of carbon dioxide are produced when 5.0 moles of butane react completely? * 5.0 mol 10. mol 20. mol 40. mol

Answer : The number of moles of carbon dioxide produced is, 20. moles

Explanation :

The given chemical reaction is:

From the balanced chemical reaction we conclude that,

As, 2 moles of butane react to give 8 moles of carbon dioxide

So, 5.0 moles of butane react to give moles of carbon dioxide

Thus, the number of moles of carbon dioxide produced is, 20. moles

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."