Yes, add a line like this to /etc/dnsmasq.d/wifi-hotspot.conf and restart the hotspot:
dhcp-host=01:23:45:67:89:ab,172.24.1.50
01:23:45:67:89:ab should be replaced with the MAC address of your tablet/phone.
Use cat /var/lib/misc/dnsmasq.leases to see the connected clients with their MAC addresses. The IP must be in the range [172.24.1.50; 172.24.1.150], as defined by dhcp-range in dnsmasq.conf.
See https://www.linux.com/learn/intro-to-linux/2018/2/dns-and-dhcp-dnsmasq (Set Static Addresses from DHCP section) for more info.