Determine the number of atoms and the mass of zirconium, silicon and oxygen found in 0.3384 mol of zircon zrsio4, a
semiprecious stone.

Explanation:

1 mol of ZrSiO₄ , have , 1 mol of Zr , 1 mol of Si and  4 mol of  Oxygen .

since ,

1 mol of a substance have 6.022 * 10 ²³ particles ,

From the question ,

0.3384 mol of zircon ZrSiO₄ ,

hence ,

from the above equation ,

1 mol of a substance have 6.022 * 10 ²³ particles ,

0.3384 mol = 0.3384 * 6.022 * 10 ²³ number of atoms

                  = 2.037 * 10 ²³ number of atoms

Hence ,

0.3384 mol of ZrSiO₄ will have , 0.3384 mol of Zr ,0.3384 mol of Si and  4*0.3384 mol of  Oxygen .

Hence ,

The mass is calculated as -

since ,

Moles is denoted by given mass divided by the molecular mass ,  

Hence ,  

n = w / m

n = moles ,  

w = given mass ,  

m = molecular mass .

n = w / m

w = n * m

Since we know , the molecular mass of Zr = 91 g/mol

moles of Zr = 0.3384 mol

using the above formula ,

w = n * m

w = 0.3384 mol  * 91 g/mol = 30.79 g

hence ,

The mass of Zr = 30.79 g

Since we know , the molecular mass of Si = 28 g/mol

moles of Si = 0.3384 mol

using the above formula ,

w = n * m

w = 0.3384 mol  * 28 g/mol = 9.475 g

hence ,

The mass of Si = 9.475 g

Since we know , the molecular mass of O = 16 g/mol

moles of Si = 1.3536 mol

using the above formula ,

w = n * m

w = 1.3536 mol  * 16 g/mol = 21.65 g

hence ,  

The mass of O = 21.65 g

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

it is b that is the answer.