MgSO4 + 2NaOH —> Mg(OH)2 + Na2SO4
Answer:
of are found in 39.5 grams of .
Explanation:
Atomic weights : P= 31, F= 19,
molar mass of = 1 atomic weight of P+ 5 atomic weight of
F= 31+5 19
= 31+95
=126 g/mole
moles in 39.5 gm of
=
=
=0.3134 moles
1 mole of any substance contains
0.3131 moles contains 0.3134
Therefore, of are found in 39.5 grams of .
Answer:
Malachite
Explanation:
Malachite is a copper carbonate hydroxide mineral, with the equation Cu2CO3(OH)2. This dark, green-joined mineral solidifies in the monoclinic precious stone framework, and frequently shapes botryoidal, sinewy, or stalagmitic masses, in cracks and profound, underground spaces, where the water table and aqueous liquids give the way to synthetic precipitation. So, the answer is malachite. Best of Luck!
Answer: The suffixes of the names of polyatomic ions have a pattern associated with them. ... For example, the sulfite ion has three oxygen atoms whereas the sulfate ion has four oxygen atoms.
Answer: 0.77 mole
Explanation:
Atomic mass of Ca = 40g/mol
Atomic mass of O = 16g/mol
Atomic mass of H = 1
Therefore,
1 mole of Ca(OH)_2 contains
40+[16+1]2
= 40+34
=74g/mole
Hence,
1 mole of Ca(OH)_2 = 74g
Let x mole of Ca(OH)_2 = 56. 78
x = 56.78/74
x = 0.77 mole