Evaporation-low density
water vapor-high
condense-low pressue???
Given the information we have V1=20ml V2=35.25ml (V=volume)
M1=15.71g M2= second mass unknown
Set as proportion: V1 V2
----- = -----
M1 M2
20ml 35.25ml
Cross multiply --------- = ------------ THEN 20ml (M2)= (35.25ml)x (15.71g)
15.71g M2 20ml (M2)= 553.7775ml/g
Divide both sides by 20ml to solve for M2.
20ml (M2) 553.7775ml/g
--------------- = ------------------- then M2=27.688875g
20ml 20ml
Second question we need to find volume but we know Volume=Mass/density.
We need to find density first because we have mass=125.4g only given.
Since we are working with the same alcohol we can use the first V1 and M1 to find density=M/V.
Density= M1/V1 Density= 15.71g/20ml then density=0.7855 g/ml
( It would be the same density if we used V2 and M2)
Now we find the volume of 125.4g with a density of 0.7855g/ml
V= M/D V=125.4g/0.7855g/ml then V=159.64ml
Note: Do not round off until you have reached the end of problem. It will give you a better approximation. Also, round to the largest place which in this case was two decimal places. Do not forget unit of measure.
I believe only one atom of oxygen is in a molecule of acetaldehyde.
Answer:
Zinc sulfide- more soluble in 0.10 M hydrochloric acid solution
Silver chloride- less soluble in 0.10 M hydrochloric acid solution
Lead iodide- same solubility in 0.10 M hydrochloric acid solution as in pure water
Silver hydroxide- same solubility in 0.10 M hydrochloric acid solution as in pure water
Explanation:
Solubility refers to the amount of a substance that dissolves in 1 dm^3 of solvent. Several factors influence the dissolution of solutes in a given solvent. Some substances dissolves at a low pH (in acid solutions) while other dissolve at a low pH (in basic solutions).
For Silver chloride, its solubility decreases in 0.10 M hydrochloric acid solution because of common ion effect when compared to its solubility in pure water.