Question

How many atoms are there in 43.0 g of tin (Sn)?

Metal vapor deposition is a process used to deposit a very thin layer of metal on a target substrate. A researcher puts a glass slide in the metal vapor deposition chamber and coats the slide with manganese. After deposition, the glass slide had increased in mass by 1.70 milligrams. Approximately how many manganese atoms were deposited on the glass slide?

A certain chocolate children's cereal contains 18.0 grams of sugar (sucrose, C12H22O11) per serving size of 60.0 grams. How many servings of this cereal must be eaten to consume 0.0239 moles of sugar?

Osmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and in kilograms of an Os sphere 28 cm in diameter (about the size of a grapefruit). [The volume of a sphere with a radius r is V = (4/3)?r3.] lbs and kg

Determine the total mass of 83 pennies if the mass of each penny is 2.500 g. Express the result with the correct number of significant figures.

An aspirin tablet was analyzed and found to contain 0.325 g acetylsalicylic acid. How many milligrams of acetylsalicylic acid does this equal?

Answer 1