Quiz Review 10- Chemistry - General Chemistry

1

The conversion of acetyl chloride to methyl acetate occurs via the following two-step mechanism: <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q276g1.jpg" alt="" style="vertical-align: 0.0px;" height="92" width="532" /> The conversion of acetyl chloride to methyl acetate would be classified as which of the following?

2

Calculate the Cd2+ concentration in the following cell if Ecell = 0.23 V

3

Which of the following health conditions is characterized by a high blood sugar level?

4

When milk gets sour, it curdles. What are the ―curdles?‖ What brings about the curdling of the milk?

5

What is the mass of nitrogen in 1.24 g of C4H9N?

6

The percent Fe in a sample was analysed and the following replicate values obtained (2.93, 3.08, 3.11, 3.04, 2.70%). Will omitting the last value affect the result?

7

You are likely to observe H-bonding in which of the following molecules?

8

You want to remove as much CO2 gas as possible from a water solution. Which of the following treatments would be most effective?

9

Which of the following statements about synthetically produced radionuclides is incorrect?

10

Alkaline earth metals react less vigorously with water than do the alkali metals

11

Why do we use different units for mass and weight?

12

Metals tend to _____ electrons to form ions of _____ charge

13

Consider the following decay series: <img src="https://sciemce.com/files/4/ppg__tttt0818190827__f1q70g1.jpg" alt="" style="vertical-align: 0.0px;" height="192" width="336" />What is the complete element symbol for the product labeled Y?

14

Determine the molar solubility of PbSO4 in pure water. Ksp (PbSO4 ) = 1.82 × 10-8

15

When an organic molecule gains hydrogens it is said to be:

16

Which of the following is a variable metal?

17

How many CO2 molecules are released in the formation of a 16-carbon fatty acid by lipogenesis?

18

Madam Curie discovered two new elements

19

Hydrogen bonds in amines are weaker than those in alcohols

20

Which of the following is proper scientific notation for 0.000 000 000 38?

21

Which of the following compounds contains an ionic bond?

22

Exhibit 18-1Consider the figure of a generic voltaic cell below to answer the following question(s). <img width="278" height="218" align="bottom" src="https://sciemce.com/files/3/ppg__examview__images__C_PP3e_Ch_18_nar001-1.jpg" border="0">Refer to Exhibit 18-1. If electrons are flowing in the direction from half-cell D to half-cell B, what is the purpose of component C in the voltaic cell above?

23

Select the correct electron configuration for Te (Z = 52).

24

Electrical conductivity in graphite is maximized

25

Which is not an advantage of using a solid electrolyte in a fuel cell?

26

A dilute solution is prepared by transferring 20.00 mL of a 0.3965 M stock solution to a 900.0 mL volumetric flask and diluting to mark. What is the molarity of this dilute solution?

27

The number of valence electrons represented is __________. Fill in the blank(s) with the appropriate word(s)

28

The ionic compound that forms between Mg and O is MgO

29

What is the term for the moisture that is strongly adsorbed onto the paper chromatogram and

30

Which of these is not a class of detergents?

31

According to molecular orbital theory, for an interaction to be strong between two overlapping orbitals

32

What is the sum of the coefficients when the following equation is balanced using the lowest, whole numbered coefficients? ___ PH3(g) + ___ O2(g) → ___ P4O10(s) + ___ H2O(g)

33

Estimate ΔG°rxn for the following reaction at 449.0 K.<img src="https://sciemce.com/files/4/ppg__mchem5tbb0212192104__f72g1q39g1.jpg" alt="" style="vertical-align: -7.0px;" />

34

H2O(s) ---> H2O(l) When ice melts at its normal melting point, 273.16 K and 1 atmosphere, which of the following is true for the process shown above?

35

Which amino acid has the simplest structure?

36

Exhibit 19-2 The following question(s) pertain to a 450 gram sample of 60Co recovered from a decommissioned nuclear reactor. An activity of 1.11 x 10^13 Bq was measured by technicians dismantling the plant. Refer to Exhibit 19-2. What is the half life of the 60Co?

37

Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose

38

Among the butane conformers, which occur at energy minima on a graph of potential energy versus dihedral angle?

39

Serum albumin is an example of a(an)

40

Which of the following is NOT evidence that a chemical reaction has occurred?

41

If your pencil is an example of matter and matter is made up of atoms and according to Rutherford's gold-foil experiment atoms are mostly empty space, why does your pencil feel solid when you pick it up?

42

________ is the pressure required for standard entropy conditions.

43

A barometer uses mercury because:

44

Starting with a saturated solution of sodium chloride in water at room temperature, adding solid sodium chloride will

45

Aluminum reacts with oxygen to form aluminum oxide. Which of the reactions below is correct and properly balanced?

46

Which of the following statements concerning the common temperature scales is/are true? 1 . Fahrenheit is an absolute temperature scale. 2 . The normal boiling point of water (100°C) is equal to 273 K. 3 . The difference between the boiling point and freezing point of a substance is the same for the Celsius and the kelvin scales

47

Which of the following equations is a combustion reaction?

48

The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct?

49

A sample contains MgNH4PO4, Sb2S3, KBr, Cr(OH)3, and PbCl2. Identify the precipitate after the addition of 6 M HCl; then H2S and 0.2 M HCl; then OH- to a pH of 8; and then (NH4)2HPO4 with NH3.

50

A pure solid reacts with air to produce a new white solid. What can be concluded about the original solid?

51

Which of the following amino acids undergoes oxidation in the presence of photochemical smog?

52

What type of colloid is formed when a liquid is dispersed in a solid?

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Quiz Review 10- Chemistry - General Chemistry

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