Chemistry Homework Help: Answers & Questions Page 75

• What is t-butyl alcohol?

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• At 27°C and 1 atm, 20% of N2O4 dissociated into NO2 as shown below. Determine partial pressure and equilibrium constant, kp N2O4 (g) <> 2NO2 (g) (Assume that the number of mole of N2O4 before dissociation is 1 mole)?

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• An aqueous solution is 12.00% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.036 g/mL. What are the molality, mole fraction, and molarity of NH4Cl in the solution?

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• How many resonance structures can be drawn for ozone, O3?

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• What does the atomic number represent?

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• What is steel an example of?

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• What is a salt and how is it compared with acids and bases?

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• When a sulfur (s) atom becomes an ion, what charge does it usually have?

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• What is the full electron configuration for ##"Mg"^(2+)##?

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• How would you explain the Aufbau principle?

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• R/S Absolute configuration: how to decide if it is R or S configuration ?if it given that (1) NH2 will be in the position of W (2) CH3 will be X (3) Cl will be Y (4) CH2NH2 will be in the position of Z I will attach a pic to show the place of compounds

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• Will a precipitate form when we micx Ca(NO3)2(aq) with NaOH(aq) if the concentrations after mixing are both 0.0175M?

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• Why does hydrogenation require a catalyst?

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• What is the formula for magnesium sulfate heptahydrate?

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• What is the most acceptable electron dot structure for ##N_2H_2##?

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• The density 10.5 molal of ##NaOH## solution is 1.33 gmL-1. How do you calculate mole fraction of ##NaOH##?

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• What are the differences between E1 and E2 reactions?

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• Two elements that have properties similar to those of the element sodium?

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• What is the hybridization of the central atom in ##ClF_5##?

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• Using lewis structure,determine which of CO and OH is a radical (2)Why is it possible for a molecule to have polar bonds yet have a dipole moment of zero?

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• What is the difference between electrostatic attraction and intermolecular forces?

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• What is the formula of aluminum phosphate?

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• Why are valence electrons important?

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• What are the conclusions of the Cathode ray experiment?

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• A sample of 0.2 moles of magnesium bromide. What is the number of moles of magnesium ions and bromide ions?

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• Explain what is ferrocene?

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• What are binary compounds?

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• Which ionic compounds are insoluble in water?

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• How does molality affect the freezing point?

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• Please let know how is Electronegativity value in Halogen family? I am really unclear. Thank you.

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• What are examples of physical changes? Chemical changes?

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• What causes bond polarity?

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• How would you represent potassium and bromine using an electron dot diagram? How about KBr?

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• What is Hydrogen?

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• Finding the empirical formula of iron oxide?

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• Is NF3 an acid or a base?

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• What covalent compound is SCl4?

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• What is Iodoform test?

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• How do you write the formula of zinc oxide?

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• The mass solubility of CaF2 in water is 0.016 g/L in water. What is the molar concentration of fluoride ions in a saturated solution of CaF2? And what is the value of Ksp for CaF2?

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• Where is the electron cloud located in the atom?

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• What it the chemical equation for sugar with potassium nitrate?

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• How can I balance this chemical equations? hydrogen gas and nitrogen monoxide react to form water and nitrogen gas

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• Is ##Ba(NO_3)_2## ionic or covalent? What is its name?

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• What are the intermolecular forces of CHF3, OF2, HF, and CF4?

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• What are the key points in Dalton's atomic theory

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• What is the formula for calcium hydroxide?

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• What is solubility?

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• At what temperature, the hydrogen molecules will have same kinetic energy as nitrogen molecules at 280 K?

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• What would be the major product obtained from hydroboration–oxidation in 2-methyl-2-butene?

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