<span>The Answer would be </span><span>A)The concentration cannot be increased.</span><span> </span>
Answer:
C3H6O
Explanation:
The percentage composition of the elements in the compound are given as follows:
62.1 % carbon = 62.1g of C
10.5 % hydrogen = 10.5g of H
27.6 % oxygen = 27.6g of O
Next, we convert each mass to mole by dividing by their molar/atomic mass
C = 62.1/12 = 5.175mol
H = 10.5/1 = 10.5mol
O = 27.6/16 = 1.725mol
Next, we divide each mole value by the smallest mole value (1.725)
C = 5.175mol ÷ 1.725 = 3
H = 10.5mol ÷ 1.725 = 6.086
O = 1.725mol ÷ 1.725 = 1
The empirical ratio approximately of C:H:O is 3:6:1, hence, the empirical formula is C3H6O
Answer:
The amount of water in a 95 mL sample of the solution is 33.25 mL
Explanation:
65% (v/v) rubbing alcohol is a solution containing 65 mL rubbing alcohol in 100 mL solution of the rubbing alcohol and water
Therefore, 95 mL sample of the solution will contain x mL of rubbing alcohol;
x = 65% × 95 = 0.65 × 95 = 61.75 mL rubbing alcohol and therefore, the amount of water contained = 95 - 61.75 = 33.25 mL
The amount of water in a 95 mL sample of the solution = 33.25 mL.
<span>Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to, or remove an object to the resulting temperature change. The SI unit of heat capacity is joule per kelvin and the dimensional form is L²MTΘ. Specific heat is the amount of heat needed to raise the temperature of a certain mass by 1 degree Celsius.</span>