Answer:
Explanation:
25 % ( m / v ) mannitol solution means 25 gram in 100 cc of water
25 gram in 100 mL of water
grams of mannitol in 30 mL = 25 x 30 / 100
= 7.5 grams .
If the patient has to take 2 tablets every 8 hours for 7 days.
24/8=3 3*2=6
this means that he patient will have to take 6 tablets every day.
6*7=42 And the patient must take 42 tablets in all 7 days
Hope this helps! :)
The grams of the sugar in 125 g of the drink is calculated as below
%M/m) = mass of the solute (sugar)/ mass of the solvent(drink) x100
let the mass of the solute(sugar) be represented by y
convert % into fraction by dividing by 100 = 10.5/100
10.5/100 = y/125
by cross multiplication
100y =1312.5
divide both side by 100
y=13.125 grams
Bond energy is basically how much energy it takes to break that molecule apart. The main things that affect bond energy is electronegativity and the number of bonds. I believe the correct answer is C=O. It <span>has the greatest bond energy, because it is harder to break apart a double bond than a single bond.</span>
Answer: The 
for the given chemical reaction is -175.51 kJ/mol
Explanation: Enthalpy change of the reaction is defined as the amount of heat released or absorbed in a given chemical reaction.
Mathematically,
We are given a chemical reaction. The reaction follows:
Enthalpy change for the reaction of he given chemical reaction is given by:
Putting the values in above equation, we get
