Mass in grams of 4.26 mol Si

119.28g

Explanation:

Data obtained from the question include:

Number of mole of Si = 4.26 mol

Molar Mass of Si = 28g/mol

Mass of Si =?

Number of mole = Mass /Molar Mass

Mass = number of mole x molar Mass

Mass of Si = 4.26 x 28

Mass of Si = 119.28g

Answer/ explanation :

Mass in grams of 4.26 mol of Si.

To calculate this, we use the formula

Number of mole = mass / molar mass

Since we are given the number of mole

Number of mole = 4.26mol

Mass = ?g

Molar mass of Si = 28.0855g/mol

4.26mol = mass / 28.0855g/mol

By cross multiplication,

Mass = 4.26 * 28.0855

= 119.644g

Therefore, the number of mass in gram of Si is 119.644g

they are made of gases.

they have a spherical shape.

they make energy through fusion.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.