Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
application()
application(gchemcalc-0.14.desktop)
gchemcalc
gchemcalc(x86-32)
metainfo()
metainfo(gchemcalc.appdata.xml)

Requires :

gnome-chemistry-utils-common = 0.14.17
libc.so.6
libc.so.6(GLIBC_2.0)
libc.so.6(GLIBC_2.1.3)
libc.so.6(GLIBC_2.34)
libc.so.6(GLIBC_2.4)
libcairo.so.2
libgcc_s.so.1
libgcc_s.so.1(GCC_3.0)
libgcu-0.14.so.0
libgcugtk-0.14.so.0
libgio-2.0.so.0
libglib-2.0.so.0
libgobject-2.0.so.0
libgoffice-0.10.so.10
libgsf-1.so.114
libgtk-3.so.0
libstdc++.so.6
libstdc++.so.6(CXXABI_1.3)
libstdc++.so.6(CXXABI_1.3.9)
libstdc++.so.6(GLIBCXX_3.4)
libstdc++.so.6(GLIBCXX_3.4.11)
libstdc++.so.6(GLIBCXX_3.4.15)
libstdc++.so.6(GLIBCXX_3.4.21)
libxml2.so.2
libxml2.so.2(LIBXML2_2.4.30)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1

Content of RPM :
/usr/bin/gchemcalc
/usr/bin/gchemcalc-0.14
/usr/lib/.build-id
/usr/lib/.build-id/3b
/usr/lib/.build-id/3b/4ff4986d14d0d538f795fe588dcb803a74accd
/usr/share/appdata/gchemcalc.appdata.xml
/usr/share/applications/gchemcalc-0.14.desktop
/usr/share/gchemutils/0.14/ui/calc
/usr/share/gchemutils/0.14/ui/calc/gchemcalc.ui
/usr/share/gnome/help/gchemcalc-0.14
/usr/share/gnome/help/gchemcalc-0.14/C
/usr/share/gnome/help/gchemcalc-0.14/C/figures
/usr/share/gnome/help/gchemcalc-0.14/C/figures/braces.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/composition.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/formula.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/page-setup.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/pattern.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/print-scale.png
/usr/share/gnome/help/gchemcalc-0.14/C/figures/start.png
/usr/share/gnome/help/gchemcalc-0.14/C/gchemcalc-0.14.xml
/usr/share/gnome/help/gchemcalc-0.14/C/legal.xml
/usr/share/icons/hicolor/scalable/apps/gchemcalc.svg
/usr/share/man/man1/gchemcalc.1.xz
/usr/share/omf/gchemcalc-0.14/gchemcalc-0.14-C.omf