Initial Rates Method

In which experiment is the rate of reaction between hydrochloric acid and calcium carbonate slowest?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-5

Which trials would be used to measure the rate exponent for A?

• trials 1 and 2
• trials 1 and 3
• trials 2 and 3

Tags

NGSS.HS-PS1-5

What is the rate exponent for A?

• 0
• 1
• 2

Tags

NGSS.HS-PS1-5

What is the rate exponent for B?

• 0
• 1
• 2

Tags

NGSS.HS-PS1-5

A reaction has the rate law: Rate = k [A][B].
What is the order of reaction with respect to A?

• 1st
• 2nd
• 3rd
• 4th

A reaction has the rate law: Rate = k [A][B].
What is the overall order of reaction?

• 1st
• 2nd
• 3rd
• 4th

The rate law for the reaction 2NO_(g) + O_2(g) → 2NO_2(g) is first order in O₂ and third order overall. What is the rate law for the reaction?

• Rate = k [NO]²[O₂]²
• Rate = k [NO]¹[O₂]²
• Rate = k [NO]²[O₂]¹
• Rate = k [2NO]²[O₂]¹

Tags

NGSS.HS-PS1-5

Find the order for F₂ and CIO₂ using data shown below.

• (F₂ - 2^nd order) (CIO₂ - 1^st order)

• (F₂ - 1^st order) (CIO₂ - 1^st order)

• (F₂ - 1^st order) (CIO₂ - 2^nd order)

• (F₂ - 2^nd order) (CIO₂ - 2^nd order)

Tags

NGSS.HS-PS1-5

The reaction

2ClO_2(aq) + 2OH^-_(aq) —> ClO_3(aq) + ClO₂^-_(aq) + H₂O_(l) was studied with the following results:

Calculate the rate constant with proper units.

• 230 M/S

• 230 M^-1s^-1

• 230 M^-2-s^-1

• R=K[ClO₂][OH^-]

Tags

NGSS.HS-PS1-5

The following data were measured for the reaction BF3(g) + NH3(g) —> F3BNH3(g)

What is the rate law for the reaction? 

• R=K[NH₃]

• R=K[BF₃]²[NH₃]

• R=K[BF₃][NH₃]

• R=K[BF₃][NH₃]²

Tags

NGSS.HS-PS1-5