![]() A 0.5 M solution of H2SO4 is the same as _ H2SO4. What is the normality of a solution of H2SO4 if it has a specific gravity of 1.84 and contains 95.0% H2SO4 by weight? A. A 1.038 M sucrose in water solution has a density of 1.1 g/mL. What is the molarity of ethylene glycol solution? A. The coolant in a car mobile is ethylene glycol, C2H6O2 by mass. What mass of sodium carbonate is needed to make 120 mL of a 1.5 M solution? A. Indicate the concentration of each on or molecule present in a 0.25 M CaBr2 solution. The density of a solution that is 20.0% by weight HClO4 is 1.138 g/ml. mixed with water to make a 100 mL vodka 30. This means the vodka contains 40 mL of pure alcohol A. According to the label, a bottle of vodka has a 40% by volume concentration. If 8.4 g of the element X combine with 6.50 g of oxygen, the atomic weight of the element is A. Al4O6 An element X is found to combine with oxygen to form a compound with the molecular formula X4O6. C6H6 Determine the empirical formula of a compound that contains 52.9% aluminum and 47.1% oxygen A. What is the molecular formula of the compound? A. C12H9O6 A compound has the empirical formula CH and a molecular mass of 78. 9.11 E -31 kg Give the mass empirical formula of the following compound if a sample contains 57.8%C, 36%H, and 38.6%O by mass. 3.2 E 24 What is the mass of the electron? A. 69.72 amu How many electrons are in 0.01 g of gold? A. What is the atomic weight of the element? A. sigma bond An element consist of 60.10% of an isotope with an atomic mass of 68.926 amu and 39.90 % of an isotope with an atomic mass of 70.925 amu. linear Hardness of diamond is due mainly to a large amount of A. 120˚ What can be the molar shape of BCl3? A. ![]() tetrahedral, nonpolar The bond angle in CH4 is approximately A. all of these Describe the geometry of CH2Cl2, dichloromethane. ![]() arsenic Which of the following is a semi-conductor? A. stabilize Which does not belong to the group? A. F As the atomic number increases in a group, the chemical properties A. 3 Which of the following will have the largest size? A. 3 How many components are necessary to define the following equilibrium? CaCO3(s) CaO(S) +CO2(g) A. gold What is the degree of freedom of a system consisting of a gaseous mixture of carbon dioxide and nitrogen? A. 6 Magnesium cannot displace from solution the ions of A. 12 In diamond, each carbon is covalently bonded to _ other carbon atoms A. atomic cluster In the hexagonal close-packed structure, each atom has a coordination number of A. Electrons and protons in the structure can move freely The basic repeating structural unit of a crystal lattice is the A. Electrons in the structure can move freely D. There are no empty spaces in metal structures C. H2 Which of the following is the reason that metals conduct electricity? A. HBr Of the following gases, the one with the greatest density at STP is: A. 273˚C Of the following gases, _ will have the greatest rate of effusion at a given temperature. hydrogen The volume of an ideal gas is zero at _. 4 Which of the following is the lightest? A. 1,836 Deuterium or heavy hydrogen has an atomic no. The mass of a proton or neutron is approximately _ times that of an electron. OctoPhysical and Chemical Principles General Inorganic Chemistry 1 FLORES CHEMICAL ENGINEERING REVIEW CENTER Rm 302 CDC 2 Bldg.
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