They have different tastes, because they use espresso, milk and milk foam to make lattes, espresso, milk, cream and chocolate sauce to make mocha. The ratio of latte milk to espresso is about 3:2, and the ratio of milk to espresso in mocha is generally 1:1.
The biggest difference between the two kinds of coffee is that the materials needed to make them are different. Latte is made of espresso, milk and milk foam, while Mocha is made of espresso, milk, cream and chocolate sauce.
Secondly, when making lattes and mocha, the proportion of various materials is also different. When we make lattes, the ratio of milk to espresso is generally about 3:2, while the ratio of milk to espresso in mocha is generally 1:1.
Finally, because the raw materials and raw material ratios of the two kinds of coffee are different, their tastes are also very different. Lattes generally contain more sweet smell of fresh milk, while Mocha has more layers of taste because it also has cream and chocolate sauce.