How many atoms are in a sample of 1.83 moles of potassium (K) atoms? How many atoms are in a sample of 1.83 moles of potassium (K) atoms?

What is the mass of sodium in 3 moles of sodium chloride

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.