Practice problems to do?

[Dencology]

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1. Which of the following is NOT found in normal human blood?

• thrombocytes
• basal cells

2. How many different types of gametes can be produced by an organism with the genotype AabbCc, provided that linkage does not occur?

• 2
• 4
• 8
• 16

3. Carbonic acid (H2CO3) is formed by dissolving CO2 in H2O. how many grams of CO2 (44g/mol) are dissolved in 300mL of a 0.05 M solution of H2CO3?

• (0.3)(0.05)/44
• (300)(0.05)/44
• (0.3)(0.05)(44)

4. How many grams of NaCl (58g/mol) would produce the same freezing point depression of 1L of water as 30 grams of SiO2 (60g/mol)? how do we do this one?

• 0.25
• 14.5
• 29
• 58
• 116

5. If 90% of a 0.1 M solution of HCl is neutralized with 0.1 M NaOH, what is the pH of the solution?
can you explain your answer here?

• 1
• 2
• 6
• 7
• 9

6. For a certain reaction, doubling the concentrations of both reactants doubled in the initial reaction rate. What is the overall order of this reaction?

• 0
• 1
• 2
• 4
• Cannot be determined

7. How many electrons are being exchanged between carbon and oxygen in this reaction?
C (s) + O2 (g)-----------à CO2(g)

• 0
• 1
• 2
• 3
• 4

8. What is the hybridization of the central atom in H2S?

• sp
• sp2
• sp3
• dsp
• dsp3

9. how many milliliters of water need to be added to 60mL of 12M NH3 in order to make it 0.1M?

• 60*12*0.1
• 60*12/0.1
• 0.1/[60*12]
• 0.1/[60*12]-60

[60*12/0.1]-60