In acid solution, water can add to the double bond of 2-butenedioic acid to form 2-hydroxysuccinic acid.
1 answer:
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Answer:
V= 0.147 L
Explanation:
This is simply the application of combined gas law twice, to find the unknowns.
Combined gas law states that:
P= pressure of air
V= volume of air
n= moles of air
R= Universal gas constant ( 0.08205 L atm mol⁻¹ K⁻¹)
T= Absolute temperature in kelvin.
Now, applying the same gas law at 483K and substituting for n
V=
V= 0.147 L
Answer: Payback time = 0.0075
Explanation: Since payback time is calculated as:
payback time =
First determine the installation cost:
100 mm thick insulation covers 8.3 m². Then 300 mm covers 24.9 m².
To cover 8.3m² costs £20. Then, the cost to cover 24.9 m² is:
cost =
cost = £60
The cost of putting the insulation is £120, so the total cost is:
total cost = £60 + £120
total cost = £180
Savings per year per 100 mm thick is £80. For 300 mm, the value of annual savings is:
savings =
savings = 240
payback time =
payback time =
payback time = 0.75
Answer: 0.11 g/ml
Explanation:
Half-life = 81 minutes
First we have to calculate the rate constant, we use the formula :
Now we have to calculate the age of the sample:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant = 0.008\text{minutes}^{-1}[/tex]
t = time of decomposition = 324 minutes
a = let initial concentration of the reactant = 1.8 g/ml
a - x = concentration after decay process = ?
Now put all the given values in above equation, we get
Thus concentration after 324 minutes will be 0.11 g/ml.