Answer:
Explanation:
Hi, the first step is to calculate how much F2 there is in the container:
<u>Fluorine can be considered as an ideal gas</u> (given that is non-polar and has a small molecule). Using the ideal gas formula:
Where:
Now, the mols of iodine:
<u>The chemical reaction described is the following</u>:
In this case, the limitant reactant is the fluorine:
1) The 0.056 mol of F2 gives of and consumes of I2.
2) At the end, in the conteiner we have:
of
of
of
In total: .All in 2.5 L at 550 K
<u>The final pressure</u>:
The partial pressure:
<em>Note: this partial pressure is calculated by the Dlaton's principle</em>
Four haem groups and 4 globin
Answer:
V= 0.031L
Explanation:
P= 0.97atm, V= ?, n= 0.12/98 =0.00122mol, R= 0.082, T= 22.4+273= 295.4
Applying
PV=nRT
0.970×V = 0.00122×0.082×295.4
Simplify the above equation
V= 0.031L
Answer : Option B) All atoms of a single substance are identical.
Explanation : The scientist John Dalton proposed the atomic theory which had the postulates as follows.
i) All matter/substances consists of indivisible particles known as atoms.
ii) Atoms of the same element/substance are similar in mass,shape and size, but differ from the atoms of other elements.
iii) Atoms obey the law of conservation of energy which says atoms cannot be created or destroyed.
iv) Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form any compound atoms.
v) Atoms of same element can combine in ratio with more than one to form two or more compounds.
vi) The atom is considered to be the smallest unit of matter that can take part in a chemical reaction
Answer:
60.30 percent
Explanation:
The percent composition of magnesium in magnesium oxide with a chemical formula of MgO is 60.30 percent.