There is/are + "so much"

[Ched133]

hello

Can anyone help me explain why "is" used for this phrase and not "are"

There is so much to learn

Why is "is" correct and not "are".

Is "much" always singular?

[Torsten]

'Much' is used in connection with singular nouns while 'many' is used with plurals.

There are many people who want to learn English.
There is much to learn for them.

TOEIC listening, talks: Announcement by hospital staff asking to use different entrance during repainting