the volume has increased by a factor of 400/160. So, the concentration has decreased by the same factor.
convert grams to moles and then the concentration is moles/L
What is the concentration in each of the following solutions?
A) 240 mL of 0.200 M KNO3 is added to 160 mL of water.
B) 2.25g of NaCl is dissolved in 250 ml of water.
2 answers
0.3
0.15
0.15