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It is a combustion reaction. C3H8 will react with oxygen to form carbon dioxide and water.
Answer:
[HCl] = 2.77 M (option b)
Explanation:
A 10% by mass is an information that means, 10 g of solute are contained in 100 g of solution.
Density is mass / volume and it always corresponds to solution.
So solution mass is 100 g. Let's find out solution volume with density
Solution mass / Solution volume = Solution density
100 g / Solution volume = 1.01 g/mL
100 g / 1.01 g/mL = 99 mL
In conclusion our 10 g of HCl are contained in 99 mL of solution
Molarity is mol of solute in 1L of solution
Let's convert the mass to moles (mass / molar mass)
10 g / 36.45 g/mol = 0.274 moles
Let's convert the mL in L
99 mL = 0.099L
Molarity is mol/L → 0.274 mol / 0.099L = 2.77M
Answer : The unknown volume will be, 348.6 mL
Explanation :
Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles of gas.
Mathematically,
where,
are the initial volume and temperature of the gas.
are the final volume and temperature of the gas.
We are given:
Now put all the given values in above equation, we get:
Therefore, the unknown volume will be, 348.6 mL
Answer: C = 0.014M
Explanation:
From n= m/M= CV
m =43.5 M= 148, V=850ml
43.5/148= C× 0.85
C= 0.35M
Applying dilution formula
C1V1=C2V2
C1= 0.35, V1= 25ml, C2=?, V2= 600ml
0.35× 25 = C2× 600
C2= 0.014M