Question

I just need to know if I did the problem correctly.
The decomposition of phosphine, a very toxic gas, forms phosphorus and hydrogen in the following reaction:
4PH3(g) → P4(g) + 6H2(g)

If the instantaneous rate of the reaction with respect to PH3 is -0.41 M s-1, what is the instantaneous rate of the reaction?

My Anwser:
-(1/4)*-0.41 = 0.10Ms-1

Answer 1

I think you have too many minus signs there. I would have done (1/4)*-0.41 = - 0.10 M/s