CHEM 120 (CHEM 120)

CHEM120: Week 1 Lab Name: Michelle Ramsaroop You are giving your child a medicine that has a dosage of 2 tsp a dose. The instructions indicate that you are to give the child 3 doses day. How many days will a 100 ml bottle of medication last? Show all work below (1 point) 1tsp = 4.92892 2tsp = 9.85782 3 doses - 9.85782 X 3= 29.57346 100/ 29.58 = 3.347 100ml will last = 3.35 days 1. A chemical process dissolves 500 milligrams of iron oxide every 20 mins. How long would it take this reactio...

dentify an atom that has 4 protons and 6 neutron. What is the number of electrons in that atom? Calculate mass number. Beryllium (Be) Has 4 electrons Mass number = 4+6 = 10 If the number of neutrons are 6, then the mass number will be sum of neutrons and protons 6+4 = 10 Pick any nonmetric to metric equality and convert it. For example, 8.9 lb = _______________ g To find out how many grams in "x" pounds (lb), multiply the number of pounds by 453.59237. 1 lb (pounds) equals 453.592 g...

CHEM 120 Final Exam

Exam 2 Total Points: 60 PART 1: Multiple Choice questions: Q 1-24. (2 point each) 1. Chemical reactions (equations) show the following a. Reactants b. Products c. Physical state of each (gas or liquid or solid) d. All of the above 2. The following is true for a mole a. It is also known as Avagadro’s number b. It contains 6.022 * 1023 molecules c. It contains mass equivalent to molecular weight d. All of the above are true 3. In balancing chemical equations, the coefficients are us...

CHEM 120 Week 1 Discussion Question 1: Scientific Method and Calculations

CHEM 120 Unit 3 Discussion 2: Molarity and Solution Calculations

CHEM 120 FINAL EXAM PRACTICE QUESTIONS & ANSWERS

CHEM 120 Midterm Study Guide