In 1897 the swedish explorer andreé tried to reach the north pole in a balloon. the balloon was filled with hydrogen gas. the hydrogen gas was prepared from iron splints and diluted sulfuric acid. the reaction is
fe(s)+ h2so_4(aq) > feso4(aq) + h2(g)
the volume of the balloon was 4800 m^3, and the loss of hydrogen gas during filling was estimated at 20.%. what mass of iron splints and 98% (by mass) h2so4 were needed to ensure the complete filling of the balloon? assume a temperature of 0^c, a pressure of 1.0 atm during filling, and 100% yield

Explanation:

Hello,

Based on the given data, the corresponding moles of hydrogen to fill the balloon without loss is:

Now, considering the 20% loss of hydrogen, the amount that ensured the complete filling was:

Based on that result, we proceed to computed the amounts of both iron and 98% by mass sulfuric acid that were needed to ensure the complete filling of the balloon as follows:

Best regards.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.