Chemistry Homework Help: Answers & Questions Page 54

• How many chloride ions will be found in the formula for cobalt(II) chloride?

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• What are alkoxide ion and alkyl bromide?

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• What are some examples of neutralization?

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• How do you calculate the number of valence electrons in a molecule?

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• How do you Calculate the mass in grams of NH4Cl that must be added 400.0 mL of a 0.930 M solution of NH3 to prepare a pH = 9.00 buffer?

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• Why does the independent variable go on the x axis?

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• What is the conjugate base of h2so4?

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• The weight of a diamond is given in carats. One carat is equivalent to 200 mg. A pure diamond is made up entirely of carbon atoms. How many carbon atoms make up a 1.00 carat diamond?

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• What is quantitative and qualitative data?

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• Do halogens appear in the IR spectrum? For example, in a molecule bromine attached to a benzene, where would the bromine appear on the IR spectra?

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• What mass of KCl is in 350 mL of 0.24 M KCl?

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• What is the formal charge formula?

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• What is the wavelength of an electron (mass = 9.109 ×10-28 g) that is traveling 6.50 × 103 m/s?

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• How many moles of KCLO3 are needed to produce 50 moles of O2?

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• On the basis of VBT, justify the formation of hydrogen?

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• Is exergonic the same as endothermic or exothermic?

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• If element A floats when placed in element B what can you deduce about the elements?

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• What is the oxidation state of S in ##S_2O_3^-2##?

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• What is the percentage composition of co?

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• What is the chemical equation for magnesium chloride + oxygen ---> magnesium chlorate?

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• What is the functional group of an alcohol, aldehyde, and ketone?

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• What is the oxidation number of each element in kclo3?

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• The energy required to ionize sodium is 496 kJ /mol. What minimum frequency of light is required to ionize sodium?

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• What would be the product of 1-bromopropane with Mg in diethyl ether??

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• What does it mean to be enantiomerically pure?

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• What is the frequency of a light source that has a wavelength of 807 nm? What is the energy of this wave?

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• The individual BF bond are polar but still BF3 is a nonpolar molecule .how?

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• With which group of elements is magnesium most reactive?

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• Inert gases have zero valency why?

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• In a heating curve, when is the temperature constant?

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• What is the electron configuration of calcium?

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• Determine vapor pressure of solution at ##55^@"C"## that contains 34.2g ##NaCl## in 376mL of water? the vapor pressure of pure water at ##55^@"C"## is 118.1 torr.

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• Which one of the following ions is iso-electronic with krypton? (a) ##Ca^(2+)##, (b) ##K^+## (c) ##I^-## (d) ##Mg^(2+)## (e) ##Sr^(2+)##

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• What the molar mass of calcium phosphate?

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• How do you find the molar mass of argon?

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• What causes gas pressure?

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• What volume of water would you add to 15.00 mL of a 6.77 M solution of nitric acid in order to get a 1.50 M solution?

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• How did J.J. Thomson discover the electron?

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• In chemistry, what do the delta symbols Δ and δ stand for?

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• What is the formula for the conjugate base for HSO3?

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• The melting point of silver is 962°C. How do you express this temperature in kelvins?

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• Why is heat capacity an extensive property?

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• How many resonance structures can be drawn for ##"PO"_4^(3-)##?

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• A titanium cube contains 2.6*10^23 atoms. The density of titanium is 4.50 g/cm^3. What is the edge length of the cube?

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• How can I find partial pressure given moles?

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• What is uranium's electron configuration?

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• What is the molecular geometry of the CS2 molecule?

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• Which of the following compounds is insoluble in water? (a) ##"PbSO"_4## (b) ##"AgCl"## (c) ##"CaCO"_3## (d) All of the above

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• What are Hund's Rule, Pauli Exclusion Principle, and Aufbau Principle? How are they different? How are they related?

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• How to calculate the maximum kinetic energy of photo emitted electrons if uv radiation has a wavelength of 275 nm?

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