7. Consider a 100.0 grams of ammonium sulfide (10 points). (a) Write the chemical formula of...
7. Consider a 100.0 grams of ammonium sulfide (10 points). (a) Write the Chemical formula of ammonium sulfide: emical formula of ammonium sulfide: NH4t (b) What is the molar mass of ammonium sulfide: (C) Find the moles of the compound (formula units present in 100.0 grams of ammonium sulfide: (d) Find the moles of ammonium ions present in 100.0 grams of ammonium sulfide: (e) Find the moles of hydrogen atoms present in 100.0 grams of ammonium sulfide: 8. Broader Application-Inquiry...
There is a 10.0 grams necklace made of 18K gold. K, karat, is a measurement of the fineness (or purity) of gold by Jeweler and gold dealers. Compared with 24K (pure gold), 18K means that the mass percent of gold is = 0.75 (or 75 wt%, we treat it as an exact number here). In another word, that necklace contain 75% gold by mass. If the international gold price today is $1323 (US) per troy ounce, and one troy ounce...
7. Consider a 100.0 grams of ammonium sulfide (10 points) (a) Write the Chemical formula of ammonium sulfide: (NH4)2S (b) What is the molar mass of ammonium sulfide: (c) Find the moles of the compound (formula units) present in 100.0 grams of ammonium sulfide: (d) Find the moles of ammonium ions present in 100.0 grams of ammonium sulfide: (e) Find the moles of hydrogen atoms present in 100.0 grams of ammonium sulfide:
NAME _DATE SECTION INSTRUCTOR und to be EXERCISE 10 Moles Show calculation setups and answers for all problems. 1. Find the molar mass of (a) nitric acid, HNO; (b) potassium bicarbonate, KHCO3, and (e) Nickel(II) nitrate, Ni(NO). (b) 2. A sample of mercury(II) bromide, HgBro, weighs 8.65 g. How many moles are in this sample? 3. What is the mass of 0.45 mol of ammonium sulfate, (NH),SO.? 4. How many molecules are contained in 6.53 mol of nitrogen gas, N,?...
SECTION -DATE DATE EXERCISE 10 Irodno dobro INSTRUCTOR A Moles Show calculation setups and answers for all problems. 1. Find the molar mass of (a) nitric acid, HNO.: (b) potassium bicarbonate, KHCOs, and (c) Nickel(II) nitrate, Ni(NO3)2. H ow to ma Solitana Otoman (b) 2. A sample of mercury(II) bromide, HgBry, weighs 8.65 g. How many moles are in this sample? 3. What is the mass of 0.45 mol of ammonium sulfate, (NH),SO.? 4. How many molecules are contained in...