Answer:
5.8 g
Explanation:
Molecular weight in Daltons is equivalent to the molecular weight in grams per mole.
The amount of NaCl required is calculated as follows:
(2 mol/L)(50 mL)(1 L/1000 mL) = 0.1 mol
This amount is converted to grams using the molar mass (58 g/mol).
(0.1 mol)(58 g/mol) = 5.8 g
Answer:
water was added to powdered rock
Explanation:
Answer:
The molar mass of Allicin is 162 which means that you can just divide 64 by 162 since 64 is the mass of sulfur in 1 mole of Allicin (32×2=64). You should get 0.395 which is 39.5%
Explanation:
internet
Answer:
Mass = 0.43 g
Explanation:
Given data:
Mass in gram = ?
Number of molecules of NiO = 3.45×10²¹
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ molecules
3.45×10²¹ molecules × 1 mol / 6.022 × 10²³ molecules
0.57×10⁻² mol
0.0057 mol
Mass in gram:
Mass = number of moles × molar mass
Mass = 0.0057 mol × 74.69 g/mol
Mass = 0.43 g
