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Questions:
2 AgNO3(aq) + K2CO3 (aq) → Ag2CO3 + KNO3
The 20 mL of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic,
How are crops genetically modified? What are the health consequences of athletic supplements? How do fuel cells work? How does aspirin cure headaches?
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6). 2 C6H6(l) + 15 O2(g) ? 12 CO2(g) + 6 H2O(g) ?H°rxn = -6278 kJ
a race car is traveling in a clockwise direction around a circular track with a constant speed of 200 kmhr. if is at
a sample of sulfuric acid contains 2.11 g of hydrogen 32.21 g of sulfur and 63.63 g of oxygen. how many grams of sulfur
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 16.0 L
Suppose you have 0.001 M solution of a dye with pka of 7.2. from the color, concentration of protonated form is found to be 0.0002 M. Assume remainder of the dye is in the deprotonated form. What is the pH of the solution?
For each pair of substances below, which one will have the higher molar entropy. Justify each choice with a brief explanation. Which substance has greater molar entropy. Why is its entropy greater
a pure diamond with a mass of 0.1000 g contains 5.014 1021 carbon atoms and has a density of 3.52 gcm3.what is the
For each metal complex, give the coordination number for the metal species. a. [M(CO)3F3 b. Na[Ag(CN)2] c. [Pt(en)Cl2]
Explain the specific heat of iron metal is 0.450J/g-K. Explain how many J of heat are needed to raise the temperature of a 1.05-kg block of iron from 25.0°C to 88.5°C
Explain why dichloroethene has a boiling point of 60 degrees C while trans-dichloroethene as a boiling point of 48 degrees C. Include drawings of the structures with dipoles in your answer.
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