How many moles of calcium oxide are produced

Assignment Help Chemistry

Reference no: EM13174859

Here is my homework assignment:

1. identify the ions in (NH4)2Cr2O7

2.For a nonmetal in Group 5A of the Periodic Table, the most common monatomic ion will have a charge of what?

3. What is the molar mass of ammonium sulfate?

4. How many moles are in 35.7 g of anhydrous copper (II)sulfate?

5. How many grams are in 0.0751 mol Br2?

6. What is the mass percent of chlorine in iron(II) chloride?

7. A molecule is found to contain 47.35% C, 10.60% H, and 42.05%O. What is the empirical formula for this molecule?

8. A 4.450 g sample of hydrated lithium iodide, LiI.xH2O, is dried in an oven. When the anhydrous salt is removed from the oven , its mass is 3.170 g. What is the value of x?

9. The reaction of calcium with elemental chlorine yields calcium chloride. Write a balanced chemical equation for this reaction.

10. What is the correct method for determining how many moles of calcium oxide are produced in the reaction of 10.g calcium with excess oxygen?

Reference no: EM13174859

Questions Cloud

How the aggregate demand multiplier influence a recession : What is the most likely component of aggregate demand to start a recession? How does the aggregate demand multiplier influence a recession?

Prepare a schedule of lease receipts for cherry ltd : Prepare a schedule of lease receipts for Cherry Ltd and the journal entries for the year ended 30 June 2011 and prepare a schedule of lease payments for Hazel Ltd and the journal entries for the year ended 30 June 2011.

Calculate the molecular mass of the nonionic solutes : calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 8.61 grams of water lower the freezing point to -0.430 degress celcius.

What is the new volume of the gas : When a 2.3L sample of hydrogen gas at 25oC is heated to 120oC at constant pressure, what is the new volume of the gas?

How many moles of calcium oxide are produced : What is the correct method for determining how many moles of calcium oxide are produced in the reaction of 10.g calcium with excess oxygen?

Guess the correct percentage in range : To win, they have to guess the exact percentage that answered a question a certain way, and the range has already been narrowed to an 11-point range.

Determine what the tangible and intangible benefits are : Tangible would be the treatments themselves, i.e. the alterations they make. Intangible would be the uplifting experience, the sense of well-being, increased confidence etc.

How much energy does the correspond to : A reaction takes place with a mass defect (lost mass) of 0.030kg. How much energy does the correspond to?

Determine the budgeted factory overhead allocation rate : Determine the budgeted factory overhead allocation rate based on direct labour-hours and compute the amount of under-or-overallocated overheads.

User Account

All Pages