A magnesium ribbon weighing 1.25g formed 3.45 of oxide when made to react with oxygen. What is the % of oxygen in the compound?

C6H6 + Br2 = C6H5Br + HBrSince they have the same mass, the reagent with lesser mole will be the limiting reagent Since number of mole is inversely proportional to molar mass, the...

Grams of magnesium oxide=6.05g

In this experiment, students react magnesium ribbon with dilute hydrochloric acid to produce hydrogen gas. They can then use the measured volume of hydrogen gas produced and the mass of...

25 mL x (1L/1000 mL) x (4 mol HCl/1L) x (1 mol Zn/2 mol HCl) x (65.38 g Zn/1 mol Zn) = 3.269g = ~ 3.3g of ZnParts explained25 mL...

Given Moles of Mgo is 0.15 moles . Mg react with O2 and form MgO .2 mole of Mg gives 2 mole of Mgo .So 0.15 moles of Mg Gives...

Magnesium is a typical reactive metal, so any medium strength or strong acid will react with it to produce hydrogen. Water can also react with Mg producing hydrogen upon heating.

Solution:The balanced chemical equation:2Mg + O2 → 2MgOAccording to the chemical equation: n(Mg)/2 = n(O2) = n(MgO)/2Molar mass of Mg is 24 g/mol.Moles of Mg = 10.8 g × (1...

2Mg+O2 => 2MgOn(Mg)=m(Mg)/Mr(Mg)=30/24=1,25 molln(Mg)=n(MgO)=>m(MgO)=n(MgO)*Mr(MgO)=1,25*40=50g

6.5 g of magnesium oxide was formed.

2Mg + O2 --> 2MgO;Proportion:12:48=x:80 ;x=12*80/48= 20;Answer: m(MgO)=20 g