Learn French: Ce nouvel hôtel offre un bel accueil. - This new hotel offers a beautiful welcome.

Both hôtel and accueil are masculine singular nouns, but they start with a mute h and a vowel, respectively. To avoid a clunky pause between vowel sounds, French changes nouveau to nouvel and beau to bel. This allows for a smooth spoken connection, making them sound like "nou-vè-lô-tel" and "bè-la-kœy".

If we made the sentence plural ("These new hotels offer beautiful welcomes"), would we use "nouvels" and "bels"?

No, these special mutated forms only exist in the singular! In the plural, you simply use the standard masculine plural forms: Ces nouveaux hôtels offrent de beaux accueils. (Notice we also use de instead of des here because an adjective comes before the noun).

Doesn't the word ce usually change to cet before a mute h, like in cet hôtel? Why is it ce here?

It does! If you just said "this hotel," it would indeed be cet hôtel. But the rule applies to the word immediately following the demonstrative. Because we inserted nouvel, the next word now starts with a consonant (n), so ce reverts to its standard form: ce nouvel hôtel.

I usually see accueil translated as "reception desk." Is the sentence saying the hotel has a pretty front desk?