15. 20g of marble containing 90% CaCO3 is allowed to react with 50g of a concentrated acid containing 36.5% HCl by mass. Find, a) Limiting reactant b) Number of mole of excess reagent left over unreacted c) Mass of salt in gram d) Volume of CO2 gas liberated at NTP. ​

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.