Answer:
True
Explanation:
The volume of water displaced by an object completely submerged is its actual volume. It implies that in the container the object create a space of size for itself which is the volume of the object. This approach is used in calculating the density of many irregular solids from their measured masses.
Answer:
Absolutely True :) cause we use it all the time
Answer:
A
Explanation:
Am Inference is an educated guess, or a guess using prior knowledge
Co= 59g
S=32g
59+32=91g/mol
Answer:
0.767 g.
Explanation:
Molarity (M) is defined as the no. of moles of solute dissolved in a 1.0 L of the solution.
M = (no. of moles of K⁺)/(Volume of the solution (L).
<em>∵ no. of moles of K⁺ = (mass/molar mass) of K⁺.</em>
<em>∴ M = (mass/molar mass) of K⁺/(Volume of the solution (L).</em>
<em></em>
M = 0.0044 M.
Volume of the solution = 4459.0 mL = 4.459 L.
mass of K⁺ = ??? g.
molar mass of K⁺ = 39.01 g/mol.
∴ mass of K⁺ = (M)((molar mass of K⁺)(volume of the solution (L)) = (0.0044 M)(39.10 g/mol)(4.459 L) = 0.767 g.