1. Answer ALL parts a)-c). a) Why is it important to know the point of zero charge of the support material when preparing a supported platinum nanoparticle catalyst by wet impregnation? b) What factors must be considered when selecting the optimum calcination temperature for a supported metal nanoparticle catalyst prepared by wet impregnation? c) When preparing a metal nanoparticle catalyst by impregnation to incipient wetness, why is it wrong to assume that doubling the metal loading will increase the number of exposed metal atoms by 100%? 1. Answer ALL parts a)-c). a) Why is it important to know the point of zero charge of the support material when preparing a supported platinum nanoparticle catalyst by wet impregnation? b) What factors must be considered when selecting the optimum calcination temperature for a supported metal nanoparticle catalyst prepared by wet impregnation? c) When preparing a metal nanoparticle catalyst by impregnation to incipient wetness, why is it wrong to assume that doubling the metal loading will increase the number of exposed metal atoms by 100%