Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or a compound. this is normally a ratio of whole integers.
this is so ez,
ok so here what u'll do after u balance the equation:
1. convert grams of oxygen to moles of oxygen.
2. convert moles of oxygen to moles of water
3. convert moles of water to grams of water.
4. bOOm... that's your answer
as follows:
2H2O(l)===>2H2(g)+O2(g)
1. 151200(g)/16(g/mol)=9540 moles of O2
2. 9450 moles of O2 × 2 moles of H2O =18900 moles of H2O
3. 18900 moles of H2O × 10g/mol = 189000g of H2O is required.
Steps for Determining an Empirical Formula
<span>1. Begin
with the number of grams of each element, given in the problem.2. Convert
the mass of each element to moles by means of the molar mass from the
periodic table.
3. Divide
each mole value by the smallest number of moles computed.
<span>4. Round
to the nearest whole number.</span>
</span>
The molecular formula C₅H₁₀O₅ and The scaling factor =5
<h3>Further explanation</h3>
Given
Molar mass = 150 g/mol
The empirical formula = CH₂O
Required
The scaling factor
Solution
The empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
<em>n = the scaling factor</em>
(CH₂O)ₙ=150 g/mol
(12+2+16)ₙ=150
(30)ₙ=150
n=5
The molecular formula : C₅H₁₀O₅
For # 2 1.456• 205 is 1.251 and 2.456 +205 is 298.48