Question

What is the mass of 3.04×10^-4 mol of baking soda, NaHCO3?​

Answer 1

0.025536g

Step-by-step explanation:

no. of mole = mass/Mr

mass = Mr × no. of mole

= [23 + 1 + 12 + 3(16)] × 3.04×10^-4

= 0.025536g

= 0.0255g (3 significant figures)