This worm infects humans by getting into the blood stream. It gets a
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In 1 mole of , there are 3 moles of ions, 1 mole of Ca^{2+} and 2 mole of
.
Molar mass of is 110.98 g/mol. Calculating number of moles from given mass as follows:
Thus, number of moles of ions will be .
Since, 1 mole of any substance has units of that substance where
is Avogadro's number.
Thus, 9.38 mol of ions will have number of ions.
Therefore, total number of ions in 347 g of is
.
Step 1
<em>The reaction involved:</em>
CO + 2 H2 → CH3OH (completed and balanced)
------------
Step 2
<em>Data provided:</em>
19.7 g H2 (the limiting reactant)
Excess reactant = CO
144.5 g CH3OH = actual yield
----
<em>Data needed:</em>
The molar masses of:
H2) 2.00 g/mol
CH3OH) 32.0 g/mol
-----------
Step 3
The theoretical yield:
By stoichiometry,
CO + 2 H2 → CH3OH (The molar rate between H2 and CH3OH = 2:1)
2 x 2.00 g H2 --------- 32.0 g CH3OH
19.7 g H2 --------- X
X = 19.7 g H2 x 32.0 g CH3OH/2 x 2.00 g H2
X = 157.6 g CH3OH (The theoretical yield)
-----------
Step 4
The % yield is defined as follows:
Answer: d. 93% (it is the nearest value in comparison to my result)