Answer:
11 is the coefficient for C to balance the equation
Explanation:
C₁₂H₂₂O₁₁(s) + H₂SO₄(aq) + 1/2 O₂(g) → 11C(s) + CO₂(g) + 12H₂O(g) + SO₂(g)
12 Carbons in left side → 12 Carbons in right side
12 in sucrose → 11 in solid C + 1 in the CO₂
24 Hydrogens in left side → 24 Hydrogens in right side
22 in sucrose + 2 in sulfuric → 24 in water vapor
1 S in left side → 1 S in right side
1 S in sulfuric → 1 S in sulfur dioxide
16 O in left side → 16 O in right side
11 O in sucrose + 4 in sulfuric + 1 O at ground state → 2 O in carbon dioxide + 12 in water vapor + 2 in sulfur dioxide
The answer to this is "D" The reason it is not "C" is because some steroids are used to treat medical issues, and others are used for the purpose of repairing the muscle faster after working out such as anabolic steroid
Answer:
The theoretical yield of urea = <u>120.35kg</u>
The percent yield for the reaction = <u>72.70%</u>
Explanation:
Lets calculate -
The given reaction is -
→
Molar mass of urea 
= 60g/mole
Moles of 
= 
(since 
)
= 4011.76 moles
Moles of 
= 
= 
= 2386.36 moles
Theoritically , moles of required = double the moles of
but , 
, the limiting reagent is
Theoritical moles of urea obtained = 
= 
Mass of 2005.88 mole of =
= 120352.8g
= 120.35kg
Therefore , theroritical yeild of urea = 120.35kg
Now , Percent yeild = 
72.70%
Thus , the percent yeild for the reaction is 72.70%
Answer:
D. 12
Explanation:
The pH is a measure of the acidity of a solution. The pH indicates the concentration of hydronium ions [H3O +] present in a solution;
pH = - log [H3O+]
So
pH= - log [7.8 × 10−13 M]
finally
pH= 12
True... atoms contain what are called electrons and protons. the protons being possitively charged and the elctrons being negatively charged
