The following compounds are soluble in water and will dissociate when dissolved in water.
A) barium hydroxide
B) ethanol
C) glucose
D) silver nitrate
E) dichloromethane
F) postassium chloride
The other compounds ethanol and glucose are also soluble in water but do not dissociate when dissolved in water.
Answer:
Na₂CO₃ · 10H₂O
Explanation:
The formula for sodium carbonate hydrate is:
Na₂CO₃ · xH₂O
The unknown "x" is the number of water molecules contained in the hydrate.
To find "x" we have to use the hydrogen percentage in the sample, 7.05 % H.
First we calculate the molecular weight of Na₂CO₃ · xH₂O:
molecular weight of Na₂CO₃ · xH₂O = 23 × 2 + 12 + 16 × 3 + 18x
molecular weight of Na₂CO₃ · xH₂O = 106 + 18x g/mole
Now we devise the fallowing reasoning tanking in account 1 mole of Na₂CO₃ · xH₂O:
if in 106 + 18x grams of Na₂CO₃ · xH₂O we have 2x grams of hydrogen
then in 100 grams of Na₂CO₃ · xH₂O we have 7.05 grams of hydrogen
106 + 18x = (100 × 2x) / 7.05
106 + 18x = 28.4x
106 = 28.4x - 18x
106 = 10.4x
x = 106 / 10.4
x = 10.2 ≈ 10
The formula for the washing soda is Na₂CO₃ · 10H₂O.
<u>Answer:</u> The total pressure of the container will be 2.00 atm
<u>Explanation:</u>
We are given:
Initial moles of phosphorus pentachloride = 1.00 atm
For the given chemical reaction:
By Stoichiometry of the reaction:
1 mole of 
produces 1 mole of 
and 1 mole of chlorine gas
So, 1.00 atm of will also produce 1.00 atm of and 1.00 atm of chlorine gas when the reaction goes to completion.
Total pressure of the container when the reaction goes to completion = 1.00 + 1.00 = 2.00 atm
Hence, the total pressure of the container will be 2.00 atm
Answer:
The answer to your question is C₂H₆O
Explanation:
Data
Molecular formula = C₆H₁₈O₃
Empirical formula = ?
Empirical formula is defined as the simplest ratio of the elements that form part of a molecule.
Process
To find the empirical formula find the greatest common factor of the subscripts.
6 18 3 2
3 9 3 3
1 3 1 3
1
The GCF is 3, so factor 3 of the molecular formula
3 ( C₂H₆O)
The result is the empirical formula C₂H₆O
Answer:
Does the rate of decay have an effect on the amount of gas produced?
Which brand of stain remover is the best for getting out laundry stains?
Explanation:
I just did it on Edge
