Question

calculate the formula unit mass of cacl2​

Answer 1

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Atomic mass of calcium is 40 amu.

Atomic mass of chlorine is 35.5 amu.

Thus, the relative formula mass of CaCl2 will be-

⇒Mr=(1×40)+(2×35.5)⇒Mr=111amu

Answer 2

Answer:

• The formula unit mass of CaCl2 is 111 u.
• Atomic Mass of Ca= 40
• Atomic Mass of Chlorine= 35.5 x2 = 71
• Formula Unit Mass = 40+71= 111.
• Formula unit mass is defined as the sum of the mass of all the atoms each multiplied by atomic masses that are present in the empirical formula of a compound.
• Cacl2 or calcium chloride is also known as Ice Bite.