1. What is the mass of one atom of neon in amu?
2. What is the mass of one atom of neon in grams?
3. What is the mass of 6.022e23 atoms of neon in grams?
4. What is the mass of 1.0 mole of neon atoms in grams?
5. What is the mass of 8.4 moles of neon atoms in grams?
6. Calculate the number of atoms in 7.800g selenium
7. Calculate the number of atoms in 11.60g arsenic
8. Calculate the mass of germanium that contains the number of atoms in 33.70g chromium
9. Iron (III) oxide reacts with carbon monoxide to form elemental iron and carbon dioxide. How many grams of CO are required to react with 1.49 grams of Fe2O3?
10. The reaction is: K2PtCl4 + 2NH3 → 2KCl + Pt(NH3)2Cl2 How many grams of Pt(NH3)2Cl2are formed if 8.00 g NH3react with 128 g K2PtCl4?
11. How many grams of each product are formed in the following reaction, and how many grams of which reactant remain? / Write the balanced chemical equation for this reaction and then complete the following statement: According to the balanced chemical equation,mole(s) of NaCl react withmole(s) of AgNO3.
12. What is “x”?,What is “y”?
13. What mass of K2CO3is required to clean up a spill of 301 ml of 5.25 M HCl if HCl(aq) reacts with K2CO3according to 2HCl(aq) + K2CO3(aq) → 2KCl(aq) + CO2(g) + H2O(l)? mass K2CO3=g
14. Write the empirical formula of the binary compound which is 35.21053% by mass P and 64.78947% by mass F.
15. Write the empirical formula of the binary compound which is 21.95436% by mass S and 78.04564% by mass F.