Unit 6 AP Chemistry

What mass of SOCl₂ is produced when 16.2g SO₂ react with 13.7g PCl₅? 

• 7.87g

• 30.1g

• 26.4g

• 19.8g 

Tags

NGSS.HS-PS1-7

Quinone, which is used in the dye industry and in photography, is an organic compound containing only C, H, and O. What is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO₂ and 0.0350 g of H₂O when burned completely?

• CHO

• C₂H₁₀

• C₆H₄O₂

• C₃H₂O

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

The simplest formula for an oxide of element Z (MM= 86.0) that is 32% oxygen by weight is

• Z₂O

• ZO₂

• Z₂O₅

• ZO

In which of the following compounds is the mass ratio of Titanium to Oxygen closest to 2.1 to 1.0?

• TiO₃

• TiO₂

• TiO

• Ti₂O₃

Which measurement contains 3 sig figs?

• 200 mL

• 20.0 mL

• 0.02 mL

• 0.020mL

Which is a halogen?

• Helium

• Chlorine

• Oxygen

• Neptune

Tags

NGSS.HS-PS1-1

Based on Coulomb's law, an electron is more tightly held to the nucleus if the charge of the nucleus is ___________ and the distance between them is ____________.

• greater

  greater

• greater

  smaller

• smaller

  smaller

• smaller

  greater

Tags

NGSS.HS-PS1-3

NGSS.HS-PS3-5

Calculate the average atomic mass from the mass spec.

• 85.56 amu

• 85.75 amu

• 86.44 amu

• 86.74

How many isotopes are shown in this mass spec?

• 1

• 2

• 6

• 7

Based on the mass spec data, which Iron isotope is the most abundant?

• Fe-54

• Fe-56

• Fe-57

• Fe-58

Tags

NGSS.HS-PS1-8