Question

Q2. Beryllium is a light metal used to fabricate transparent X-ray windows for medical imaging instruments. How many moles of Be are in a thin-foil window weighing 3.24 g?​

Answer 1

The Mole: Conversions to Grams Beryllium is a light metal used to fabricate transparent X-ray windows for medical imaging instruments. How many moles of Be are in a thin-foil window weighing 3.24 g? Select the correct answer below: O 0.360 mol O 2.78mol O 19.50 mol O 29.20 mol

Answer 2

Beles moles are in a small foil window weighing 3.24 g:

• Beryllium is a simple metal used to create X-ray windows that reflect the objects of medical imaging tools.

• Beryllium is a chemical with the marking of the 4th atomic number.

• It is iron-gray, strong, lightweight and brittle alkaline earth metal.

• It is a divalent element that occurs naturally only by combining with other elements to make minerals.

• Molar mass of be = 9.012182g / mol

• Mole =3.24/9.012=0.35mol

• So ,

• 0.360 mol 3.24g x 1 / 9.012 mole = 0.360mol.