Express 345.6 in scientific notation

3.456 x 10^2 is the answer you're looking for.

C) ideal gas law the ideal gas law. the volume (v) occupied by n moles of any gas has a pressure (p) at temperature (t) in kelvin. the relationship for these variables, p v = n r t, where r is known as the gas constant, is called the ideal gas law or equation of state.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.