If 1.3000 g of alum is heated in a cricible to drive off the water and the remaining solid has a mass of 0,7600 g, how many moles of water were removed from the solid? Show calculation and correct number of sig figs

If 1.3000 g of alum is heated in a cricible to drive off the water and the remaining solid has a mass of 0,7600 g, how m...
CUSU 420 4. A 1.082 g sample of Niso, . x H2O is heated to drive off the water leaving behind 0.596 g of anhydrous NiSO4. a. How much water was removed? (15) 0.4869 b. How many moles of Niso, were in the sample? (15) 0.596 -0.00385 mol Nisou c. How many moles of water were in the hydrate? (15) 0.486-18=0.027 mol H2O d. What is mole ratio? (15) 0.0027 7.00 mol 0.00385
1. A mass of 3.462 g of a metal carbonate, MCO3, is heated to drive off carbon dioxide. The remaining metal oxide has a mass of 2.229 g. MCO3(s) → MO(s) + CO2(g) What is the identity of the metal?
When a 7.50 g sample of hydrated LiClO, is heated to drive off all the water, the anhydrous residue that remains has a mass of 4.97 g. What is the mass percent of water in the hydrate?
4. When a 7.50 g sample of hydrated LiClo, is heated to drive off all the water, the anhydrous residue that remains has a mass of 4.97 g. What is the mass percent of water in the hydrate?
Перо Name _Date Section 1. mass of aluminum 16.2058 2. mass of alum possible (theoretical yield) 3. mass of alum produced (actual yield) 4. percent yield Show calculations by number: 10:52 Exit If you removed the solvent from 50.07 mL of a 1.403 M copper(II) sulfate solution, how many grams of copper(II) sulfate would you have? Question 2 3 pts The solubility of copper(II) bromide in water is 55.7 g/100 mL of water at 20 C. If you have a...
how do i solve What mass of water can be heated from 25 degrees Celsius to 50 degrees Celsius by the addition of 2825 J? Express your answer as a number only with two sig figs.
15.67 g sample of a hydrate of magnesium carbonate was heated, without decomposing the carbonate, to drive off the water. The mass was reduced to 7.58 g. What is the formula of the hydrate? Name the hydrate
5. A 1.547 g sample of CuSO, XH,O is heated to drive off the water leaving behind 0.989 g of anhydrous Cuso, What is the value of x for this hydrate?
A 6.2351 g sample of an unknown hydrate of cobalt(II) bromide is heated until all the water of hydration is removed. The CoBr2 that remains has a mass of 5.0000 g. 1. How many moles of CoBr2 are in the sample? mol 2. How many grams of water were lost in the dehydration? g 3. How many moles of water were lost? (mol) 4. What is the value of "n" in the formula CoBr2 · n H2O? (1, 2, 3,...
9. (10 pts) A mixture of MnSo, and MnSO4H,O has a mass of 2,005 g. After heating to drive off all the water the mass is 1.780 g, How many grams of MnSO4H.O are presented in the mixture? What is the mass percent of MASO the mixture?