Question 1 (1 point) Why do scientists use models? to aid in the development of
Question 1 (1 point)
Why do scientists use models?
to aid in the development of questions and explanations about systems.
all answers are true.
to replicate and simplify. physical reality to allow for precise experiments
because some systems are so large, small, or complex they are difficult to predict.
Scientist used models to explain and predict the behavior of real object or system
gamer0078
4,6(3 marks)
We first calculate for the H+ ion concentration from the pH of the solution of benzoic acid. We do as follows:
pH = -log[H+] 2.45 = -log [H+] [H+] = 3.55x10^-3
We then use the initial concentration and the h+ ion concentration as follows for Ka calculation: C6H5COOH = C6H5COO- + H+ I 0.20 0 0 C -x x x E 0.20-x x x