That's interesting. I tried it on Grok and it gave the correct answer straight away:
"The pH of the mixed water depends on the volumes mixed. Assuming equal volumes (e.g., one liter of each, as pitchers are typically similar in size and no volumes are specified), the resulting pH will be approximately 8.8."
Along with an explanation of how pH is a logarithmic scale and the calculations involved. It used its code execution tool and wrote a program to do the calculation.
I dislike Musk, and use Grok. I find it most useful for analyzing text to help check if there's anything I've missed in my own reading. Having it built in to Twitter is convenient and it has a generous free tier.
I asked Grok to write a Python script to solve this and it did it in slightly under ten minutes, after one false start where I'd asked it using a mode that doesn't think deeply enough. Impressive.
"The pH of the mixed water depends on the volumes mixed. Assuming equal volumes (e.g., one liter of each, as pitchers are typically similar in size and no volumes are specified), the resulting pH will be approximately 8.8."
Along with an explanation of how pH is a logarithmic scale and the calculations involved. It used its code execution tool and wrote a program to do the calculation.