CaSO4⋅2 H2O (s) can be heated to completely drive off water to form CaSO4 (s). A 2.49 g sample of CaSO4⋅2 H2O (s) is heated until the mass is constant. Calculate the mass of the solid that remains after the dehydration reaction is complete.

Q: Complete and balance the equations for each of the following reactions. All yield products. (d)…

A:

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: 20. A 2.00g sample of magnesium was burned in excess pure oxygen, according to the equation below:…

A:

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: 1. Metals react ith oxygen gas to produce oxides with the general formula Mx O y. Write a balanced…

A:

Q: Question 4 is needed to answer question 5. I had provided the answers for question 4. I just…

A: Steps to write net ionicequation is  1) First write the balanced equation 2) Write total ionic…

Q: Barium metal was quantitatively precipitated from a 1.52 g sample of BaCl2-2H2O. The mass of the…

A: Given: Mass of the sample BaCl2.2H2O =1.52g Mass of Barium collected = 0.844g

Q: when aluminum metal and copper(II) sulfate(aq) are combined. If a reaction occurs, write a balanced…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Antimony is alloyed with lead to increase the rigidity of components used in the construction of…

A: Given data;Mass of metallic alloy = 3.826 gMass of mixture of oxides = 4.456 gThe molar mass of lead…

Q: The zinc in a 1.199 g sample of a foot powder was precipitated as ZNNH,PO4. Strong heating of the…

A: Given :  Mass of foot powder = 1.199 g  Mass of Zn2P2O7 produced = 0.4089 g

Q: Examine the following chemical equation. While the equation is balanced it is not the correct…

A: A balanced chemical equation is the one that contains equal number of atoms on both sides of the…

Q: Li(s)+N2(g)→Li3N(s) Balance the equation.

A: The balance equation is

Q: Cu(OH)2(s) → CuO(s)+H2O(l) write the name of the product and the name of the solid product.

A: The reaction given is, => Cu(OH)2 (s) -------> CuO (s) + H2O (l)

Q: 1. Write the balanced equation, the ionic, and net ionic equation for the reaction of Potassium…

A:

Q: 7. Complete and balance the equations for the reactions. All reactions yield products. Cl2(g) (a)…

A: Dear student, as this picture contains multiple questions. We are answering only 7th  question. If…

Q: From a chemistry standpoint, describe the co-precipitation method to prepare metal oxide…

A: Co-precipitation In this method, a metal is precipitated in the form of hydroxide using salt as a…

Q: In the reaction, Cu + 2 AgN03 → Cu(NO3) 2 + 2 Ag, the substance that becomes oxidized is OCu Ag O…

A: We have to identify the oxidized substance.

Q: Write a balanced metathesis equation for the reaction which takes place when the two solutions…

A: Given, Volume of FeCl3 =350 ml = 0.35 L Molarity of FeCl3 = 0.125 M The volume of KOH = 475 ml =…

Q: You have dissolved 5 g of a rock containing a mixture of calcium carbonate and inert sand in 100 mL…

A: Mass of rock = 5g Volume of Solution = 100 mL = 0.1 L Molarity of solution = 1 mole /L Concentration…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".