How you can determine CaO and MgO by EDTA in cement? In: Chemistry [Edit categories] Read more: How_you_can_determine_CaO_and_MgO_by_EDTA_in_cement
To determine the number of moles in 106 grams of MgO, you need to divide the given mass by the molar mass of MgO. The molar mass of MgO is 40.3 g/mol (24.3 g/mol for Mg + 16 g/mol for O). Thus, 106 g / 40.3 g/mol = approximately 2.63 moles of MgO.
Quicklime is prepared industrially and is fairly pure -CaO. However, strictly speaking there are always impurities present such as MgO, CaCO3, Ca(OH)2 and other trace elements.
Magnesium oxide (MgO) is not attacked by atmospheric oxygen because MgO has a high heat of formation and a stable lattice structure. This makes it energetically unfavorable for oxygen to react with MgO under normal atmospheric conditions.
the final formula of magnesium oxide is MgO.
methanolammonia (NH4)ammonia (NH4)
CaO is calcium oxide. P2O5 is diphosphorous pentoxide. MgO is magnesium oxide. SiO2 is silicon dioxide.
MgO and CaO have higher boiling points compared to NaCl and HCl, and CO2 and SO2. This is because MgO and CaO are ionic compounds that have stronger electrostatic forces between ions, leading to higher boiling points. NaCl and HCl are also ionic compounds but have lower boiling points compared to MgO and CaO. CO2 and SO2 are molecular compounds with weaker intermolecular forces, resulting in lower boiling points compared to the ionic compounds.
soundness is nothing but volumetric change of the cement .Presents of chemicals such as CaO,MgO will react with the water present in the cement paste and it will increase the volume of cement paste while hardening.It may causes cracks in the building to avoid that it is necessary to find the soundness of cement before using that.It may vary to each type of cement even for each batch.Soundness should not exceed 10mm for OPC.
Fire Burning,Iron Rusting
Cement consists of the following composition,Cao - 60 -67 %SiO2 - 17-25%Al2O3 - 3-8%Fe2O3 - 0.5-6%MgO - 0.1-4%Alkalies - 0.4-1.3%SO3 - 1-3%
By the reduction of calcium oxide you can prepare calcium: CaO + Mg = Ca + MgO 3CaO + 2Al -> Al2O3 + 3Ca
To determine the number of moles in 106 grams of MgO, you need to divide the given mass by the molar mass of MgO. The molar mass of MgO is 40.3 g/mol (24.3 g/mol for Mg + 16 g/mol for O). Thus, 106 g / 40.3 g/mol = approximately 2.63 moles of MgO.
To determine the number of moles of MgO produced from 11.2 L of O2, you would first need to balance the chemical equation for the reaction involving MgO and O2. Then, using the ideal gas law and stoichiometry, you can calculate the moles of MgO produced.
2 Mg(OH)2 have 10 atoms.
dolomitic limestone is different from agricultural or hydrated limestone the difference is in the MgO content and hardness Dolomitic Limestone is harder than both and its MgO content is higher. The CaO is lower in Dolomitic limestone and High in the later.
The common element in MgO (magnesium oxide), Al2O3 (aluminum oxide), and CaO (calcium oxide) is oxygen. All three compounds consist of a metal cation (magnesium, aluminum, or calcium) combined with oxygen anions. This results in the formation of metal oxides, which are typically ionic compounds. Additionally, they all exhibit properties common to metal oxides, such as high melting points and basic character.
To determine the number of moles in 160g of MgO, you first need to calculate the molar mass of MgO, which is 40.3 g/mol for Mg and 16.0 g/mol for O. Adding these together gives a molar mass of 56.3 g/mol for MgO. Next, divide the given mass (160g) by the molar mass of MgO to find the number of moles present. So, 160g / 56.3 g/mol = 2.84 moles of MgO.