Inni

This page lists questions and answers that were posted by visitors named Inni.

Questions

The following questions were asked by visitors named Inni.

(Iron ore is impure Fe_2O_3. When Fe_2O_3 is heated with an excess of carbon (coke), metallic iron and carbon monoxide gas are produced. From a sample of ore weighing 950kg , 533kg of pure iron is obtained). What is the mass percent by mass, in the ore sa...
13 years ago
(The reaction of calcium hydride and water produces calcium hydroxide and hydrogen as products). How many moles of H_2(g) will be formed in the reaction between 0.90mol CaH_2(s) and 1.33mol H_2O(l)?
13 years ago

Answers

The following answers were posted by visitors named Inni.

so you divide the molar mass by 2 and then multiply by fe's molar mass. why divide by 2?
13 years ago