2.86 f. u. MgO equals how many moles of MgO

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?