Answer:
O is the only 3lement that is unbalanced
First option is the right answer Goodluck
Data Given:
Pressure = P = 2.5 kPa = 0.02467 atm
Temperature = T = 157 °C + 273.15 = 430.15 K
Volume = V = ?
Mass = m = 10 g
First find out moles for given amount of Argon gas,
As,
Moles = Mass / M.mass
Putting values,
Moles = 10 g / 39.94 g/mol = 0.250 moles
Now using Ideal Gas Equation,
P V = n R T
Solving for V,
V = n R T / P
Putting Values,
V = (0.25 mol × 0.0821 L.atm.mol⁻¹.K⁻¹ × 430.15 K) ÷ 0.02467 atm
Volume = 357.87 L
The solution of dextrose has a w/v% of 70 %. this means the mass of dextrose is 70 % of the volume of the solution.
In 100 mL of the solution - mass of dextrose is 70 g
therefore in 400 mL of the solution - mass of dextrose is - 70 /100 x 400 = 280 g
mass of dextrose is 280 g
CO2 AND H2O e.g. C3H8+5O2=3CO2+H2O
