Chemistry Homework Help: Answers & Questions Page 88

• How might you prepare(in one step) copper(II) nitrate from copper(II) chloride?

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• Are single displacement reactions exothermic?

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• What is the set of chemical equations that describe the buffering action of phosphate buffered saline (PBS)? Calculate theoretically the pH of phosphate buffered saline.

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• Can anyone explain this? How and why does the chain length of surfactants affect CMC? How and why does the addition of a salt (eg., NaCl) affect the CMC?

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• Where in a multicellular animal does meiosis occur?

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• What is the net ionic equation that occurs when zinc nitrate and lithium phosphate are mixed together in water?

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• A sample of argon gas has a volume of 6 liters at a temperature of 7 °C. What volume does the gas occupy at 147 °C?

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• How many milliliters of water has been dispensed if the initial buret reading was 0.47 mL and the final is 26.18 mL?

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• Guys, i'm really confused. Who discovered the proton? Goldstein or Rutherford?

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• What is [OH-] in a solution having a pH 9f 13.56?

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• Is SO2 a liquid, a solid, or a gas at room temperature?

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• What element has a noble gas notation (Xe) 6s2?

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• What are the symbol & valence of carbon?

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• What is a homogeneous mixture?

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• Why should distilled water be boiled and cooled when determining its pH?

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• What is the product of acetamide and sodium hydroxide?

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• I have .400 mol of potassium sulfate (K2SO4), how can I calculate how many grams of potassium (K) I have? Does anyone know of a youtube video that will help me understand how to find the mass of just one element within a compound? Thank you!

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• What does the atomic number represent?

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• How can I convert from international units (IU) to milligrams or micrograms?

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• Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species.?

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• Is the law of proportions the same as the law of constant composition?

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• What's the difference between polyatomic compounds and polyatomic ionic compounds?

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• Is sulfur a nonmetal?

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• What is the molar mass of ##Al(NO_3)_3##?

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• How many pi bonds are there in bf3?

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• Ascorbic Acid is composed of 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen. If its molecular mass is 176.1 g/mole what is its molecular formula?

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• Calculate molar solubility of MgF2 in 0.10 M NaF at 25 C?

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• How would you classify the following elements as main group elements, transition metals, or inner transition metals: 1.Ca 2.Fe 3.Ag 4.U 5.O 6.Pb?

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• How do you predict the products of an acid base reaction? I know a salt and water is formed - which salt or how?

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• What state of matter is fire?

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• What was the cathode ray tube experiment conclusion?

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• What is a homogeneous mixture?

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• In the sentence, "Each element of matter has distinct properties and a distinct atomic structure," what does the word structure mean?

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• What is the formula for zinc chloride with a formula weight of 138.28 amu?

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• The equation for the combustion of glucose is: C6H12O6(s) + 6O2(g) -->6CO2(g) + 6H2O(g). How many grams of H2O will be produced when 8.064g of glucose is burned?

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• What is the titration curve of glycine?

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• Two half-cells in a galvanic cell consist of one iron (Fe(s)) electrode in a solution of iron (II) sulphate (FeSO4(aq)) and a silver (Ag(s)) electrode in a silver nitrate solution. What will happen to the mass of the cathode and the mass of the anode while...

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• Potato osmosis. Explain why molar concentration of CaCl2 that is isotonic with potato is less, greater,or same as that of NaCl? I know that CaCl2 has 3 particles and that NaCl has 2 but how would that effect the concentration of each of these

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• What is the difference between structural isomer, geometric isomers, and enantiomers?

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• How would you distinguish between ortho and para nitrophenol using infrared spectroscopy?

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• Draw the cis and Trans isomers of 2-butene.?

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• How do you draw ( S )-1-bromo-1-chlorobutane?

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• Why is percent error important?

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• How do you convert 16 weeks to seconds?

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• A tank of nitrogen has a volume of 14.0 L and a pressure of 760.0 mm Hg. Find the volume of the nitrogen when its pressure is changed to 400.0 mm Hg while the temperature is held constant.

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• What is the functional group for polysaccharides?

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• What is the molar mass of aluminum?

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• How does vapor pressure affect the boiling point of a liquid?

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• What is the half life formula?

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• What is the relationship between atomic number and atomic mass number?

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