Question

Report Sheet-Lab 13 Report Sheet-Lab 12 A8 Moles of O Show A.9 mole Mg mole O : smaller value moles Mgmoles Mg (rounded) moles。 moles O (rounded vele A.10 Formala: Mg subscripts Questions and Problems Q1 Using the rules for writing the formulas of ionic compounds, write the ions and the correct formula for magnesium oxide. 02 Write a balanced equation for the reaction of the magnesium and the oxygen. How many grams are needed to obtain 1.5 moles of MgCO,? 126 t CO es Southwes Second Custom Edition for Los Angel Moles and Chemical Formulas Report Sheet-Lab 12 Q4 How many moles are in each of the following? a. 80.0 g of NaOH b. 120 g of Ca(OH) Q5 Write the simplest formula for each of the following compounds: 0.200 mole Al and 0.600 mole Cl 0.080 mole Ba, 0.080 mole S, 0.320 mole O g of copper (Cu) reacts with oxygen, the copper oxide product has a mass of 2.81 g What is the simplest formula of the copper oxide? Q.7 Aluminum and oxygen gas react to produce aluminum oxide. a. Write a balanced equation for the reaction. b. If 12 moles of Al,0, are produced, how many moles of aluminum reacted? c. If 75 g of oxygen react, how many grams of aluminum are required? 127 Dressued it soud be havdfr humans to b 3. Why does a scuba diver teed increased gas pressure in the air tankben the dosp 4 How does temperature affect the kinetic energy of gas molecules? A. Boyle's Law A.1 Reading Pressure () Volume () Px V (Product 630 mm 690 mm 726 mm H 790 mm H 32.0 mL 29.2 mL 27.8 mL 25.6 mL ↓ 24.0 mL 843 mm Hg 914 mm Hg 22.2 mL How do the values for the P × V product compare to each other? 133 Laboratory 13 Report Sheet-Lab 13 A2 Graphing Pressure and Volume: Boyle's Law HEM n Introduct anic, and B Volume ImL) Questions and Problems Q1 According to your graph, what is the relationship between pressure and volume? 02 On your graph, what is the volume of the gas at a pressure of 760 mm Hg? Q3 On your graph, what is the pressure of the gas when the volume is 30.0 mL.? Q.4 Complete the following when T and π remain constant Pressure Volume Increases Increases 134 Second Custom Edition Gas Laws Report Sheet-Lab 13 Q.5 A sample of helium has a volume of 325 mL and a pressure of 655 mm Hg. What will be the pres- sure if the helium is compressed to 125 mL (T constant)? (Show work.) Q.6 A 75.0-ml sample of oxygen has a pressure of 1.50 atm. What will be the new volume if the pressure becomes 4.50 atm (T constant)? (Show work.) Q.7 In a weather report, the atmospheric pressure is given as 29.4 inches of mercury. What is the corresponding pressure in mm Hg? Charles' Law Tengerature of boiling water bath B. B.1 B2 Temperature of cool water (bath B.3 Volume of cool water that entered flask B.4 Total gas volume of flask mL 135

Answer 1

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