Answer:
4.43 Liters
Explanation:
100 g of carbon dioxide = 54.47 liters of carbon dioxide
54.47 / 100 = 0.5447
8 x 0.5447 = 4.43L
Answer:
HgS
Explanation:
In a 0.350g-sample there are 0.302 g of Hg. Then, there is 0.350 g - 0.302 g = 0.048 g of S. To calculate the empirical formula, we have to follow a series of steps.
Step 1: Calculate the percent composition
Hg: (0.302 g / 0.350 g) × 100% = 86.3%
S: (0.048 g / 0.350 g) × 100% = 13.7%
Step 2: Divide each percentage by the atomic mass of the element
Hg: 86.3 / 200.59 = 0.430
S: 13.7 / 32.07 = 0.427
Step 3: Divide the numbers by the smallest one
Hg: 0.430/0.427 ≈ 1
S: 0.427/0.427 = 1
The empirical formula is HgS.
Answer:
1.67 M
Explanation:
The following data were obtained from the question:
Initial volume (V1) of solution = 250 mL
Initial Molarity (M1) of solution = 0.5 M
Final volume (V2) of solution = 75 mL
Final Molarity (M2) of solution =?
Thus, we can obtain the final molarity of the solution by using the following formula:
M1V1 = M2V2
0.5 × 250 = M2 × 75
125 = M2 × 75
Divide both side by 75
M2 = 125 /75
M2 = 1.67 M
Thus, the new Molarity of the solution is 1.67 M.
An ionic compound is arranged in a organised lattice structre that allows for the greatest electrostatic attraction between the opposite charged atoms and the lesser electrostatic repulsion between the same atoms, where the atoms are as closely packed as possible. So the amount of energy (in form of heat) needed to break the electrostatic attraction between the atoms, so this means that ionic compounds have very high melting points.