Chemistry Homework Help: Answers & Questions Page 46

• How do you convert moles and grams to formula units?

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• How do you find percent change?

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• What is molarity, molality and normality?

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• Why is bromine an electrophile?

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• What does the nucleus of an atom contain?

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• How would you use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 0.120 M in HClO and 0.185 M in KClO?

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• How do intermolecular forces affect evaporation?

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• What type of mixtures can be separated by distillation?

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• How can chemical properties be used to identify substances?

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• How can you use the solubility product constant to calculate the solubility of a sparingly soluble ionic compound?

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• How many p orbitals are there in a neon atom?

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• How many significant figures are there in the measurement 238.230 kg?

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• The specific heat of iron is 0.11 cal/g.°C. Iron melts at 1530 °C. How much heat must be added to 1.0 g of iron at 25 °C to completely melt?

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• Why is BF3 triagonal planar and PF3 triagonal pyramidal?

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• How do you calculate the percent yield of copper?

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• What are the three types of heat transfer?

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• Translate this equation-hydrogen sulphide gas burns in air to give water and sulphur dioxide and then balance them?

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• How can you model half life decay?

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• Does iron (II) sulfide have a high melting point? Why or why not?

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• How does sugar, an organic compound dissolve in water, which is polar?

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• Is chlorine a metal or a nonmetal?

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• Why do SN2 reactions prefer aprotic solvents?

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• What is the density of sulfur trioxide at STP?

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• we say that 1 mole is equal to 6.02 x 10 ^23 particles which consist compounds but what about just elements for example one mole Fe atom should consist 6.02x10^23 particles but which particles what are they for atoms?particle is gen

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• Does the 3rd electron shell have a capacity for 8e- or 18e-?

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• What is a manometer?

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• What is a solute?

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• What ions hydrolyze in aqueous solutions?

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• How many micrograms (µg, ug or mcg) are there in a milligram (mg)?

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• What are the cations and anions for the formula calcium iodide?

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• How do you know which ideal gas constant to use?

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• How can I write the formula for aluminum chloride?

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• A) How to calculate the theoretical yield of water resulting from the complete combustion of 1.60 g of methane b) When the reaction was run in the lab 3.30 g of water were formed. What is the percent yield of water for this run? CH4 + 2 O2 ->CO2 + 2 H2...

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• How does pH affect the Nernst equation?

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• An irregularly shaped stone was lowered into a gradulated cylinder holding a volume of water equal to 2.0mL.the height of the water rose to 7.0mL if the mass of the stone was 25 what was it's density?(find the difference in the height of the water)

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• What are the customary units of solubility on solubility curves?

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• What is the hybridization of ##CH3^-##?

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• Are SN1 reactions faster than SN2?

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• The angular momentum quantum number of an electron in a d orbital is equal to?

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• A solution of silver nitrate (AgNO3 ) is added to a solution of sodium hydroxide (NaOH). In the precipitation reaction that occurs, which ions will be spectator ions?

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• What is an integrated rate law?

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• Why do exothermic reactions release heat?

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• The compound copper(II) bromide is a strong electrolyte. What is the reaction when solid copper(II) bromide is put into water?

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• What is the excited state of carbon?

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• What are covalent bonds?

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• How does Bronsted-Lowry define acids and bases?

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• Consider the reaction: K2S(aq)+Co(NO3)2(aq)→ 2KNO3(aq)+CoS(s) What volume of 0.255 M K2S solution is required to completely react with 170 mL of 0.110 M Co(NO3)2? Thank you!

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• Magnesium reacts with nitrogen to form magnesium nitride. The chemical formula for this reaction is ##Mg+N_2-> MgN_2##. What is the product, or what are the products, of this reaction?

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• What is the average kinetic energy of the molecules in a gas at 273K?

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• What is a solid formed from liquid reactants during a chemical reaction?

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