The balanced chemical reaction is written as:
Sb2S3 + 6HCl = 6SbCl<span>3 + 3H2S
We are given the amount of </span><span>antimony(III) sulfide to be used in the reaction. This is amount will be used for the calculations. We do as follows:
2.85 g Sb2S3 ( 1 mol / </span><span>339.715 g ) ( 6 mol SbCl3 / 1 mol Sb2S3 ) (</span> 228.13 g / mol ) = 11.48 g SbCl3
<u>Answer:</u> The mass percent of water in the hydrated sample is 21.5 %
<u>Explanation:</u>
To calculate the mass percentage of water in the hydrated sample, we use the equation:
We are given:
Mass of hydrated sample = 2.00 g
Mass of water = [2.000 - 1.570]g = 0.430 g
Putting values in above equation, we get:
Hence, the mass percent of water in the hydrated sample is 21.5 %
Answer:
A
Explanation:
A hydroxide ion is given as:
OH⁻
The electron dot notation shows only the chemical symbol of the element surrounded by dots to represent the valence electrons. The chemical symbol denotes the nucleus and all electrons except the valence electrons.
The dots are arranged on the four sides in pairs.
Oxygen is made up of 6 valence electrons, and since the ion has a net negative charge, the hydrogen and oxygen achieved their stable configuration this way.