Answer:
The full amount (5.00 g) will be dissolved in 1 L of water at 25°C.
Explanation:
The molecular weight (MW) of Vanillin (C₈H₈O₃) is calculated from the chemical formula as follows:
MW(C₈H₈O₃) = (12 g/mol x 8) + (1 g/mol x 8) + (16 g/mol x 3) = 152 g/mol
If 0.070 mol of C₈H₈O₃ are soluble per liter of water at 25°C, the maximum mass that can be dissolved in 1 L is:
0.070 mol x 152 g/mol = 10.64 g
Since 5.00 g is lesser than the maximum amount that can be dissolved (10.64 g), the added amount will be completely dissolved in 1 L of water at 25°C.
B I hope it’s right I don’t really help a lot but yeah lol
Answer:
2.772 seconds
Explanation:
Given that;
t1/2 = 0.693/k
Where;
t1/2 = half life of the reaction
k= rate constant
Note that decomposition is a first order reaction since the rate of reaction depends on the concentration of one reactant
t1/2 = 0.693/2.5 x 10-1 s-1
t1/2= 2.772 seconds
Answer:
Explanation:
Hello,
In this case, since the undergoing chemical reaction is:
The corresponding moles of carbon dioxide occupying 40.0 mL (0.0400 L) are computed by using the ideal gas equation at 273.15 K and 1.00 atm (STP) as follows:
Then, since the mole ratio between carbon dioxide and calcium carbonate is 1:1 and the molar mass of the reactant is 100 g/mol, the mass that yields such volume turns out:
Regards.
Answer:
The answer to your question is:
Explanation:
Butane (C₄H₁₀) Compound It's composed by C and H
Dodecane (C₁₂H₂₆) Compond It's composed by C and H
Octane (C₈H₁₈) Compound It's composed by C and H
Benzene (C₆H₆) Compound It's composed by C and H
Oxygen (O₂) Element It's only oxygen
Carbon dioxide (CO₂) Compound It's composed by C and O
Water (H₂O) Compound It's composed by H and O
Gasoline Mixture It's composed by many hydrocarbons
Kerosene Mixture It's a mixture of hydrocarbons
