when 0.1 mole of atoms of an element react with chlorine there is an increase in mass of 7.1 g. The chloride has a high melting point. The chloride could be
when 0.1 mole of atoms of an element react with chlorine there is an increase in mass of 7.1 g. The chloride has a high melting point. The chloride could be
A Carbon B Magnesium C Sodium D Silicon E sulfur
Why is it B - Magnesium?
because magnesium reacts 1:2 with chlorine for form MgCl2. If you had 0.1 mol of Mg, you must then react with 0.2 mol chlorine. Since chlorine has mr of 35.5, 0.2 mol will be 7.1g
but I thought the mass increase means mass of the chloride in total???
no, they mean how much the mass of your original 0.1 moles increases by. You still have your original 0.1 moles, but now it's reacted with 0.2 moles chlorine, its mass has increased by 7.1g
when 0.1 mole of atoms of an element react with chlorine there is an increase in mass of 7.1 g. The chloride has a high melting point. The chloride could be
A Carbon B Magnesium C Sodium D Silicon E sulfur
Why is it B - Magnesium?
dude! i know you posted this q long time back but it came in the edexcel JANURAY 2014 paper.. can you tell me which book you got the question from?
I apologise but I have left school and no longer have access to any of the resources I had...it could have come from a teachers pack, it could have come from a textbook..it could have come from anywhere!!...I honsetly have no idea...
Dude this question came up in my general physical and organic chemistry textbook. I use it, but I do a different board to you.
haha okay i was just getting curious because this guy posted up the q in 2011 and it came up in the edexcel january 2014 unit 1 paper.. so i thought edexcel use some special book where they get their questions from