Calculate the molecular (formula) mass of the compound: iron(II) acetate tetrahydrate. A. 186.9 amu B. 245.9 amu C. 191.5 amu D. 242.7 amu E. 197.9 amu

The correct answer is option B.

Explanation:

The molecular formula of iron(II) acetate tetrahydrate.;

Atomic mass of iron = 55.84  amu

Atomic mass of carbon = 12.01 g/mol

Atomic mass of oxygen = 16.00 amu

Atomic mass of hydrogen = 1.01 amu

Molecular mass of  iron(II) acetate tetrahydrate:

The closest option to 246.02 amu is 245.9 amu.

So, the correct answer is option B.

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.