Ametal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.

The element represented by M is Strontium.

Explanation:

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

The metal present in the given metal oxide is strontium and its atomic symbol is  .

Further explanation:

Mole is the measure of the amount of substance. Mole is the relation between the mass of the substance and molar mass of a substance. It is defined as the mass of a substance in grams divided by its molar mass (g/mol).

The expresion to calculate the number of moles is as follows:

   ...... (1)

The given metal oxide MO contains 15.44 % oxygen, it means that 100 g of metal oxide MO contains 15.44 g of oxygen. The amount of metal present in 100 g of metal oxide is,

The number of moles of oxygen in 100 g of metal oxide can be calculated by dividing mass of oxygen with molar mass of oxygen.

According to the molecular formula of metal oxide MO, 1 mole of metal oxide contains 1 mole of oxygen and 1 mole of metal. Therefore, the number of moles of metal present in given metal oxide must be 0.965 moles.

The molar mass of metal can be calculated as follow:

According to the periodic table metal which has a molar mass approximately 87.7 g is strontium (Sr). Hence the metal oxide is strontium oxide.

Learn more:

1. Determine the number of atoms in a molecule of white phosphorous.:

2. Rank the gases in decreasing order of effusion:

Answer details:

Grade: Senior school

Subject: Chemistry

Chapter: Mole concept

Keywords: Metal oxide, formula unit, MO, metal, symbol of metal, M, strontium, Sr, number of moles and strontium oxide.

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

c. is the answer

by love gaming