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Chapter 3: Q 35E (page 169)

Question-Determine the percent ammonia (NH3) in Co (NH3)6Cl3 to three significant figures.

Short Answer

Expert verified

The percent ammonia in Co (NH3)6Cl3 is 38.2%.

Step by step solution

01

Determine the mass

Mass of ammonia = 6x17g = 102g

Mass of Co(NH3)6Cl3 = 267g

02

Determine percent of ammonia

Percent ammonia = (mass of ammonia/mass of molecule) x 100

= (102/267) x 100

= 38.2%

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Most popular questions from this chapter

Question- Determine the empirical formula for the compounds with the following percentage composition:

(a) 15.8% carbon and 84.2% sulfur.

(b) 40% carbon, 6.7% hydrogen, and 53.3% oxygen.

A cough syrup contains 5.0% ethyl alcohol C2H5OH, by mass. If the density of the solution is 0.9928 g/ml determine the molarity of alcohol in the cough syrup.

Determine the mass in grams of each of the following:

(a) 0.600 mol of oxygen atoms

(b) 0.600 mol of oxygen molecules, O2

(c) 0.600 mol of ozone molecules, O3

Determine the number of moles of compound and the number of moles of each type of atom in each of the following:

(a) 25.0 g of propylene, C3H6

(b) 3.06×10−3 g of the amino acid glycine, C2H5NO2

(c) 25 lb of the herbicide Treflan, C13H16N2O4F (1 lb = 454 g)

(d) 0.125 kg of the insecticide Paris Green, Cu4(AsO3)2(CH3CO2)2

(e) 325 mg of aspirin, C6H4(CO2H) (CO2CH3)

What information do we need to determine the molecular formula of a compound from the empirical formula?
See all solutions

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