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ACS Final Exam Practice Questions - Document preview page 1

ACS Final Exam Practice Questions - Page 1

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ACS Final Exam Practice Questions

Practice ACS exam questions on unit conversions: speed of light in nm/ms and helium density in lb/ft³, helping students prepare for the General Chemistry official guide exam.

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ACS Final Exam Practice Questions - Page 1 preview imageFinal Exam Practice QuestionsFromPreparingfor Your ACS Exam (nation in General Chemistry: The Official GuideConstants and Conversions7? = 8.314 ? • ?o? -1- ? -J7? = 0.0821 ?at??o?-1- ? -1NA= 6.022 x 1(P mol-ih =6.62 x Iff34J-sc = 2.998 x 10sm-s10°C = 273.15 K1 atm = 760 mmHg1 atm = 760 ton1.The speed of light is 3.0xl03m s. What is this speed in nm ms?A.3.0x104*nm msB.3.0x10:nmmsC.3.0x1014nm insD.3.0x1020nm ms2.The density of helium is 0.164 kg m3. What is this density in lb ft3? 1 kg=2.20 lb and 1 m=3.28 ft.A.0.0102 lb ft3B.0.1101b ft3C.1.18 lb ft3D.12.71b.ft33.Based on the figure what volume should be reported for the liquid?A.20.8 mLB.20.68 mLC.20.6 mLD.20.57 mL4.What is the correctly reported mass of water based on the data in the table?A.BC.D.5.A.BCD.1.3 g1.30 g1.298g1.2980 gWhat is the name of TifPOyw?Titanium phosphateTitanium (III) phosphateTitanium (IV) phosphateTitanium tetraphosphateMass of beakerand waterMass of beaker only29.62 g28.3220 n
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ACS Final Exam Practice Questions - Page 2 preview image6.The formula of strontium hexafluorosilicate is SrSiFj. What is the formula of aluminumhexafluorosilicate?AAlSiFjB.AlSiFaC.Al=SiFsD.Al.<SiF6)i7.Which isNOTnamed correctly?A.MnCh manganese(II)oxideB.CuSOi copper (If) sulfateC.NajPOt sodium phosphateD.CaFi calcium fluorideS.What is the correct name for NjO??A.Nitrogen (II) oxideB.Nitrogen (V) oxideC.Dinitrogen oxideD.Dinitrogen pentoxide9.What is the formula of sulfur tricxide?ASO;B.SOsC.S O /D.S O /10. What is the name of HBrO4(aq)?A.Bromic acidB.Bromous acidC.Hydrobroniic acidD.Perbromic acid11. What is the formula of hydroiodic acid?A.HI (aq)B.HIO (aq)C.EHCh(aq)D.HIOh(aq)12. If a palladium nanoparticle has a density of 12.0 g cm-, tvhat is the mass of a nanoparticle with avolume of l.S4xlO"*]cm3?A.2.21xl0":ogB.1.63xlO"2CgC.6.52x10-21gD.1.53x10"“ g13. Which sample has the largest volume? The density' of aluminum is 2.7 g cnr and for copper is 9.0gem*.A.1.0 g aluminumB.5.0 g aluminumC.1.0 g copperD.5.0 g copper
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ACS Final Exam Practice Questions - Page 3 preview image16.In all neutral atoms, there are equal numbers ofA.Protons and neutronsB.Positrons and electronsC.Neutrons and electronsD.Electrons and protons
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ACS Final Exam Practice Questions - Page 4 preview image17. Which pair of particles has the same number of electrons?A.F;Mg2B .Ne, ArC.B r S eD.Al-'TFIS. Which element is represented by j X?A.IronB .GermaniumCBariumD.Chromium19. Which statement is true?A.The nucleus of an atom contains neutrons and elections.B .The atomic number of an element is the number of protons in one atom.C.The mass number of an atom is the number of protons in the nucleus plus the number of electronsoutside.D.The number of electrons outside the nucleus is the same as the number of neutrons in the nucleus.20. A sodium ion differs from a sodium atom in that the sodium ionA.Has fewer electrons.B .Is an isotope of sodium.C.Exists only in solution.D.Has a negative charge on its nucleus.21 . Two isotopes of hypothetical element X exist with abundance of 30.00% -C0X and 70.00%10 LX. Whatis the approximate atomic mass of X (in atomic units, amu)?A.100.3B.100.5C.100.7D.101.022. Which element is an actinide?A.RbB.UC.MoD.Ga23. Which compound contains a —1 ion?A.MgOB.KC1C.NOD.ALP24. If gallium, atomic number 31, combines with selenium, atomic 34. what is the most likely formulabased on your knowledge of the periodic nature of the elements?A.GaSeB.GaSeC.Ga;SeD.Ga;Se3
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