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...
7. Consider a 100.0 grams of ammonium sulfide (10 points). (a) Write the chemical formula of ammonium sulfide: formula of ammonium sulfide: (b) What is the molar mass of ammonium sulfide Mass (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: No b le wore wolnos tot (e) Find the moles of hydrogen atoms present in 100.0 grams of...
Chemical Quantities and Chemical Composition 1. How many atoms are in 15 moles of sodium? 2. How many moles are in 2.1 x 10^22 molecules of H2SO4? 3. How many atoms are in 7.22 moles of gold? 4. How many atoms are in 90.43 of Xenon? 5. How many grams do 1.96 x 10^24 atoms of sodium weight? 6. Calculate the molar mass of AgNO3. 7. Calculate the molar mass of Fe2O3. 8. Calculate the molar mass of CaCO3 9....
Question 3 [20 points 1. Copper sulfide is produced when copper and sulfur are heated together Use the data below, obtained after the heating process, to determine the empirical formula of this compound. Molar masses (e/mol) c S 32.06. 18 points) befor 1 Mass of crucible cover copper (B) 2 Mass of crucible + cover (g) 3 Mass of copper (B) 4 Mass of crucible cover + copper sulfide at constant weight (8)40.23 S Mass of copper sulfide (8) 6...
1. How many GRAMS of ammonium phosphate, (NH4)3PO4, are present in 2.81×1022 formula units of this compound?
help #10-12 QUESTION 10 Write the chemical formula for the compound formed from Cr3+ and SO42- Path: pWords:0 3 points QUESTION 11 What is the mass of one mole of copper (II) sulfate pentahydrate, CuSO4*SH2O 3 points QUESTION 12 A compound containing carbon and hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen. The molar mass of the compound is about 28 g/mol What is the empirical formula of the compound? What is the molecular formula of the...
Please help quickly. I only have 25 mins 7. What is the molar mass, in grams, of a compound whose chemical formula has three calcium atoms, two phosphorus atoms, and eight oxygen atoms? Show work to get credit. No work, no credit. 8. Calculate the number of moles in 28.65 grams of the compound in question 7. Hint: you calculated the molar mass of the compound in question 7. Show work to get credit. No work, no credit. 9. Calculate...
What if we want to go back? 1. How many formula units of Na2SO4 contain 3.45 x 1025 sodium ions? 2. How many moles of Na2SO4 contain 3.45 x 1025 sodium ions? 3. How many grams of Na2S04 contain 3.45 x 1025 sodium ions? molar mass Avogadro's number chemical formula Mass in grams Moles Number of formula units Number of atoms or ions
3. Consider 1.00 mole of hydrogen gas, H2. How many dihydrogen molecules are present? How many hydrogen atoms are present? What is the mass of this sample? 4. Ethanol has a molecular formula of CH3CH2OH. a. What is the average mass of one molecule of ethanol? b. What is the mass of 1.000 moles of ethanol? c. What is the mass of 0.5623 moles of ethanol, CH3CH2OH? d. How many moles of are present in a 100.0 g sample of...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...