CHEM 120 Week 1 Assignment

  • CHEM 120 Week 1 Assignment
  • $15.00


Institution CHEM 120 Introduction to General, Organic, and Biological Chemistry with Lab
Contributor Greenlee

For the problems given below, show ALL work and always write appropriate units at all times.

  1. Question: You have samples of 3 different sanitizer bottles.  They cost $10 a gallon, $20 a gallon and $30 a gallon respectively.  You would like to determine which one is the most effective.  State your hypothesis, design an experiment, and state a result that would support your hypothesis. (3 points)
  2. Question: If a medicine has a dosage of 20 ml, how many doses are in a 4-gallon bottle? (2 points)

 

Week 1 Assignment  Practice

For the two problems given below, show ALL work and always write appropriate units at all time

  1.  Question: Convert your weight in pounds into Kilograms(2 points)
    1. Now change your weight from kilograms to grams.
  2. Question: If a medicine has a dosage of 2000 ml, how many gallons of fluid is that? This is a 2 step problem.
  3. Question: Aluminum has a density of 2.7 g/cm3, how much space in cm3 would 100 grams of aluminum occupy? (2 points)
  4. Question: Give the charges, and names of the 3 subatomic particles.  (1 point for each row: 3 points total).
  5. Question: 2.92 inches = _______ cm (2 points)
  6. Question: 16500mL = _______ gallon (2 points)
  7. Question: If the density of a metal bar is 3.47 g/mL and volume is 30 mL, calculate the mass of the metal bar in gram (kilo). (2 points)
  8. Question: Identify the following as physical or chemical properties. (3 points, 0.5 point each)
  9. Question: If an atom contains 18 protons and 20 neutrons, its atomic number is __________ and mass number is ___________. It has ____________ electrons. Show calculation where applicable. Identify the element and write its full name and chemical symbol. (2 points)
  10. Question: If an atom contains 2 protons and 5 neutrons, its atomic number is ____________ and mass number is _________. It has ___________ electrons. Show calculation where applicable. Identify the element and write its full name and chemical symbol. (2 points)
  11. Question: Complete the following table based on information given about the element Boron. (1 point each row, 4 points total).

 

 

Instituition / Term
Term Fall 2020
Institution CHEM 120 Introduction to General, Organic, and Biological Chemistry with Lab
Contributor Greenlee
 

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