To
determine the empirical formula of the compound given, we need to determine the ratio of each element in the compound. To do that we assume to have 100 grams sample
of the compound with the given composition. Then, we calculate for the number
of moles of each element. We do as follows:<span>
mass moles
C 56.79 4.73
H 6.56 6.50
O 28.37 1.77
N 8.28 0.59
Dividing the number of moles of each element with
the smallest value, we will have the empirical formula:
</span> moles ratio
C 4.73 / 0.59 8
H 6.50 / 0.59 11
O 1.77 / 0.59 3
N 0.59 / 0.59 1<span>
</span><span>
The empirical formula would be C8H11O3N.</span>
Answer:
0.0073 g
Explanation:
Considering:
Or,
Given :
For HCl :
Molarity = 0.010 M
Volume = 25 mL
The conversion of mL to L is shown below:
1 mL = 10⁻³ L
Thus, volume = 25×10⁻³ L
Thus, moles of HCl :
Moles of HCl = 0.00025 moles
Considering the reaction shown below as:-
2 moles of HCl reacts with 1 mole of 
So,
1 moles of HCl reacts with 1/2 mole of
Also,
0.00025 moles of HCl reacts with 
mole of
Mole of = 0.000125 moles
Molar mass of = 58.3197 g/mol
Mass = Moles*Molar mass = 
= 0.0073 g
Answer:
A=covalent B=low melting point
Explanation:
just did this on edge... not sure if it is still needed but there wasn't an answer so :)
Answer: I believe/don't believe hummingbirds are attracted to the color red because ... (Enter your reasons)
Explanation:
Hypothesis are always different, up to you to choose believe or not believe depending on your position.
:) Hope this helped.
