Answer:
8 atoms of oxygen.
Explanation:
Given parameter:
Mass of magnesium phosphate = 15g
Unknown:
Number of oxygen atoms = ?
Solution:
The formula of the compound is;
Mg₃(PO₄)₂;
Number of atoms oxygen = 2(4) = 8 atoms of oxygen.
The density of the object is 0.467 36 g/cm³.
The mass of the object is 389.27 g.
The volume of the object is 832.92 cm³.
Density = mass/volume = 389.27 g/832.92 cm³ = 0.467 36 g/cm³
Hello there! A proton has a positive charge of (+1) and has a lesser mass compared to a neutron! Hope this helps! Have a great day!
Explanation:
Molarity is defined as the the number of moles present in a solution divided by volume in liters.
Mathematically, Molarity = 
As it is given that number of moles present into the solution are 2.00 moles and volume is 4 liter. Therefore, calculate the molarity of solution as follows.
Molarity = 
= 
= 0.5 M
Thus, we can conclude that the concentration of given solution is 0.5 M.