How many moles of each element are in one mole of Be(OH)

One mole of Be(OH)₂ consist of one mole of beryllium atom.

Two mole of oxygen atom.

Two mole of hydrogen atom.

Explanation:

Given data:

Number of moles of Be(OH)₂ = 1 mol

Number of moles of Be = ?

Number of moles of O = ?

Number of moles of H = ?

Solution:

One mole of Be(OH)₂ consist of one mole of beryllium atom.

Two mole of oxygen atom.

Two mole of hydrogen atom.

We can also determine the number of atoms from given data.

The one mole of any substance contain  6.022 × 10²³ number of atoms, thus

one mole of Be =  6.022 × 10²³ atoms

2 mole of H = 2×6.022 × 10²³ atoms

2 mole of H = 12.044 × 10²³ atoms

2 mole of O = 2×6.022 × 10²³ atoms

2 mole of O =12.044 × 10²³ atoms

law of conservation of matter

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml