An ionic compound mx3 is prepared according to the following unbalanced chemical equation. m + x2 gives mx3, a 0.105-g sample of x2 contains 8.92 x 10^20 molecules. the compound mx3 consists of 54.47% x by mass. what are the identities of m and x, and what is the correct name for mx3? starting with 1.00 g each of m and x2, what mass of mx3 can be prepared?

Atomic mass of 35.5 g/mol is of chlorine.

Atomic mass of 89.02 g/mol is of Yttrium.

Ytterium(III) chloride is the correct name for .

1.835 grams of can be prepared.

Explanation:

Moles of =n

Number of moleules of

1 mole =

n = 0.001481 mole

Mass of

Molar mass of

m = 71 g/mol

Atomic mass of X =

Atomic mass of 35.5 g/mol is of chlorine.

The compound MX3 consists of 54.47% X by mass:

Molar mass of compound = M'

Percentage of element in compound :

X:

M' = 195.52 g/mol

Molar mass of compound = M'

M' = 1 × (atomic mass of M)+ 3 × (atomic mass of X)

195.52 g/mol = atomic mass of M + 3 × (35.5 g/mol)

Atomic mass of M = 89.02 g/mol

Atomic mass of 89.02 g/mol is of Yttrium.

Ytterium(III) chloride is the correct name for .

Moles of Yttrium =

Moles of chlorine gas=

According to reaction, 3 moles of chlorine reacts with 2 moles of Y.

Then 0.01408 moles of chlorine gas will :

of Y.

This means that chlorine is in limiting amount., So, amount of yttrium (III) chloride will depend upon amount of chlorine gas.

According to reaction , 3 moles of chlorine gives 2 moles of

Then 0.01408 moles of chlorine will give :

of

Mass of 0.009387 moles of :

0.009387 mol × 195.52 g/mol = 1.835 g

1.835 grams of can be prepared.

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.