What parameter must remain the same for k to be a constant in the rate law equation?

temperature
pressure
volume
activation energy

I think it means the reaction doesn't have any intermediate phases - the order doesn't change, and it moves at the same rate, it doesn't speed up or slow down at any time

60.0 mL

General Formulas and Concepts:

Chemistry - Solutions

Reading a Periodic TableUsing Dimensional AnalysisMolarity = moles of solute / liters of solution

Explanation:

Step 1: Define

6.33 g CuNO₃

0.840 M Solution

Step 2: Identify Conversions

1 L = 1000 mL

Molar Mass of Cu - 63.55 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CuNO₃ - 63.55 + 14.01 + 3(16.00) = 125.56 g/mol

Step 3: Convert

= 0.050414 mol CuNO₃

Step 4: Find volume

Substitute:                              0.840 M = 0.050414 mol / x LMultiply x on both sides:       (x L)(0.840 M) = 0.050414 molDivide M on both sides:         x L = 0.060017

Step 5: Convert

= 60.0168 mL

Step 6: Check

We are given 3 sig figs. Follow sig fig rules and round.

60.0168 mL ≈ 60.0 mL