# Problem: Magnesium carbonate (MgCO3) and calcium carbonate (CaCO3) both decompose when heated, forming CO2 gas and the corresponding oxides.MgCO3(s) → CO2(g) + MgO(s)CaCO3(s) → CO2(g) + CaO(s)When a particular mixture of MgCO3 and CaCO3 is heated, it releases 47% of its mass as CO 2, so that the oxide products have 53% of the mass of the original sample. What mass percentage of MgCO3 was present in the original mixture?

🤓 Based on our data, we think this question is relevant for Professor Bindell's class at UCF.

###### Problem Details

Magnesium carbonate (MgCO3) and calcium carbonate (CaCO3) both decompose when heated, forming CO2 gas and the corresponding oxides.

MgCO3(s) → CO2(g) + MgO(s)

CaCO3(s) → CO2(g) + CaO(s)

When a particular mixture of MgCO3 and CaCO3 is heated, it releases 47% of its mass as CO 2, so that the oxide products have 53% of the mass of the original sample. What mass percentage of MgCO3 was present in the original mixture?

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. You can view video lessons to learn Mass Percent Formula. Or if you need more Mass Percent Formula practice, you can also practice Mass Percent Formula practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofMagnesium carbonate (MgCO3) and calcium carbonate (CaCO3) bo...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 13 minutes and 14 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Bindell's class at UCF.