Answer:
the load is between the fulcrum and the handle
Explanation:
Erica is likely to use reverse osmosis process.it is the method used in the industry to treat water in oil and gas industry .or ultra filtration method is also employed
Answer:
Number of moles = 0.75 mol
Mass = 118.5 g
Explanation:
Given data:
Number of moles of KMnO₄ = ?
Mass in gram = ?
Molarity of KMnO₄ = 0.25 M
Volume of KMnO₄ solution = 3 dm³ (3 L)
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles / L of solution
0.25 M = number of moles / 3 L
Number of moles = 0.25 M× 3 L
M = mol/L
Number of moles = 0.75 mol
Mass in gram:
Mass = number of moles × molar mass
Mass = 0.75 mol × 158 g/mol
Mass = 118.5 g
Answer:
the mass of one mole of an element, or Avogadro's number (6.02 x 1023) of atoms, is equal to its atomic mass in grams. In other words, 1 amu = 1 gram/mole. So if the mass of one hydrogen atom is 1 amu, the mass of one mole of hydrogen is 1 gram.
Explanation:
