Answer:
ΔT = 0.61°C
Explanation:
That's the formula for the colligative property of freezing point depression:
ΔT = m . Kf . i
AlCl₃ is a ionic salt that be dissociated:
AlCl₃ → Al³⁺ + 3Cl⁻ i = 4
In solution, we can have 4 moles of ions, 1 mol of Al³⁺ plus 3 moles of chloride. (We assume 100 %ionization)
Let's replace data: ΔT = 0.082 m . 1.86 °C/m . 4
ΔT = 0.61°C
Well there are 1,000 milligrams in 1 gram so 9.815 grams of sugar is equivalent to 9,815 milligrams of sugar. So a bar of milk chocolate contains 9,815 milligrams of sugar.
Answer:
The atomic number represents the number of protons
Explanation:
<span>The type of graph that’s most useful for showing how one variable changes in response to another variable is called a line graph. A line graph is used when you have one independent and one dependent variable. Usually, the independent variable is assigned to the x-axis, while the dependent variable is assigned to the y-axis.</span>
Answer:
A... According to the periodic table, elements with one electron at the outermost shell or orbital are classified as alkali METALS