How to find mac address on iphone 4 ios7?

So basically I'm trying to hook up my hotspot (which Is on my moms phone Samsung galaxy) to my phone but when I try to connect it it says unable to join the network even when I write the password 100% correct. So I decided to allow a device join the hotspot through my moms galaxy instead but it says I need the devices name and mac address.

You will need to go to the settings on your moms phone and look under wireless and the mac address should be there but if its not then you can have here connect using Wi-Fi to a router in your home and look at the settings of the router and it should show there and to find the name of the phone simply connect her phone to a computer and see what the name is.