CHM 1030 General Chemistry I Unit I Problem Solving

CHM 1030 General Chemistry I Unit I Problem Solving for $13 Only
Find the answers to the following problem statements:

1.       Mercury, the only metal that exists as a liquid at room temperature, melts at 234.3 K. Convert this melting point to degrees Celsius.

2.       Mercury has a boiling point of 356.58°C. Convert this temperature to degrees Fahrenheit.

3.       Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury, in grams per cubic centimeter.

4.       What is the density of mercury in pounds per cubic inch (lb/in3)? 1 lb = 454g, 1 in= 2.54 cm.

5.        What are some of the physical and chemical properties of Mercury? Mention at least two of each.

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Cite any direct quotes or paraphrases from the article. Use the author’s name, the year of publication and the page number (for quotes) in the in-text citation. Use APA format.

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Chemistry 130

Chemistry 130

Arrange the following elements in order of increasing atomic size, and explain how you know the order: Ca, Rb, S, Si, Ge, F. Do not simply state the trends but rather explain why the trend exists.

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Coal can be Used to Generate Hydrogen Gas

Coal can be Used to Generate Hydrogen Gas 

76. Coal can be used to generate hydrogen gas (a potential fuel) by this endothermic reaction.
C(s) + H2O(g) = CO(g) + H2(g)
If this reaction mixture is at equilibrium, predict the effect (shift right, shift left, or no effect) of the following:
a. adding more C to the reaction mixture
b. adding more H2O(g) to the reaction mixture
c. raising the temperature of the reaction mixture
d. increasing the volume of the reaction mixture
e. adding a catalyst to the reaction mixture

90. Complete the table. Assume that all concentrations are equilibrium concentrations in moles per liter, M.

Compound [Caption] [Anion] Ksp
CdS 3.7 x 10 (-15) 3.7 x 10 (-15) __________
BaF2 _____________ 7.2 x 10 (-3) 1.9 x 10 (-7)
Ag2SO4 2.8 x 10 (-2) ______________ 1.1 x 10 (-5)

Sample Answer:

e) no effect because catalyst just increase speed of reaction not equilibrium

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