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I am Lyosha [343]
3 years ago
10

Citric acid (h3c6h5o7) is a product of the fermentation of sucrose (c12h22o11) in air. determine the mass of citric acid produce

d when 2.50 mol c12h22o11 is used. the balanced equation is: c12h22o11 + 3 o2 → 2 h3c6h5o7 + 3 h2o
Chemistry
2 answers:
Alex3 years ago
6 0
2.50 x 2/1 = 5 mol of Citric Acid
5 x (3+72+5+112) = 960g of Citric Acid


Answer: 960g of Citric Acid

rusak2 [61]3 years ago
6 0

Answer:

960g

Explanation:

C_{12}H_{22}O_{11}+ 3O_{2} \longrightarrow 2H_{3}C_{6}H_{5}O_{7} + 3H_{2}O

We use stoichiometric relations to solve it.

we know that 1 mol of sucrose produces 2 mol of citric acid (we know it by the coefficients of balancing of the equation)

Now how many moles of citric acid  are produced when2.50 mol of sucrose are used

1mol C_{12}H_{22}O_{11}\longrightarrow 2 mol H_{3}C_{6}H_{5}O_{7}}\\ 2.50 mol C_{12}H_{22}O_{11}\longrightarrow x}\\ x=\frac{2.50.(2)} 1}{1} =5 mol H_{3}C_{6}H_{5}O_{7}

We have to find the molar mass of the compound.

We must multiply the atomic mass of each element of the compound by the number of atoms of each one

molar mass H_{3}C_{6}H_{5}O_{7}

H= 1 g/mol\\C= 12 g/mol\\ O=16g/mol

[tex]H_{3}C_{6}H_{5}O_{7}= (8)1g/mol+6(12g/mol)+ 7 (16g/mol)=192 g/mol[/tex]

We know that in 1 mol of Citric acid it has a mass of 192g.

Now we can find out how many grams of  H_{3}C_{6}H_{5}O_{7} are in 5 mol.

1mol \longrightarrow 192 g \\ 5 mol \longrightarrow x\\ x=\frac{5mol(191g)}{1mol} = 960g

You might be interested in
3. How many moles of silver is 8.46x1024 atoms of<br> silver?
ioda

Answer:

<h2>14.05 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{8.46 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 14.053156

We have the final answer as

<h3>14.05 moles</h3>

Hope this helps you

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