CWG1748 Placement new with a null pointer
CWG1750 “Argument” vs “parameter”

Added a missing 'the'.
CWG1751 Non-trivial operations vs non-trivial initialization
CWG1752 Right-recursion in mem-initializer-list
CWG1753 decltype-specifier in nested-name-specifier of destructor
CWG1757 Const integral subobjects
CWG1766 Values outside the range of the values of an enumeration
CWG1777 Empty pack expansion in dynamic-exception-specification
CWG1779 Type dependency of __func__

Added a comma.
CWG1780 Explicit instantiation/specialization of generic lambda operator()
CWG1782 Form of initialization for nullptr_t to bool conversion
CWG1791 Incorrect restrictions on cv-qualifier-seq and ref-qualifier
CWG1793 thread_local in explicit specializations
CWG1796 Is all-bits-zero for null characters a meaningful requirement?
CWG1797 Are all bit patterns of unsigned char distinct numbers?
CWG1799 mutable and non-explicit const qualification
CWG1800 Pointer to member of nested anonymous union
CWG1802 char16_t string literals and surrogate pairs
CWG1804 Partial specialization and friendship
CWG1805 Conversions of array operands in conditional-expressions

Editorially reworded, as suggested on the core issues list.
Removed redundant 'i.e.' and changed 'nonclass' to 'non-class'.