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Chemistry 1045 help please!?

The subject is: Converting between mass and amount (number of moles) and converting between mass and number of atoms and the mole concept. I already know the answers I just need someone to explain (very clearly cause i am not strong in chemistry) how to get the answers. Thanks so much!1.) Calculate the amount of copper (in moles) in a 35.8-g pure copper sheet. Answer: 0.563 mol Cu2.) Calculate the mass (in grams) of 0.473 mole of titanium. Answer: 22.6 g Ti3.) How many carbon atoms are there in a 1.3- carat diamond? Diamonds are a form of pure carbon. (1 carat 0.20 grams) Answer: 1.3 x 10 ^ 22 C atoms4.) Calculate the mass of 2.25 x 10 ^ 22 tungsten atoms. Answer: 6.87 g W5.) A titanium cube contains 2.86 x 10 ^ 23 atoms. What is the edge length of the cube? the density of titanium is 4.50 g/cm^3. Answer: L 1.72 cm6.) Find the number of atoms in a copper rod with a length of 9.85 cm and a radius of 1.05 cm. The density of copper is 8.96 g/cm ^3. Answer:2.90 x 10 ^24 Cu atoms

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