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Physical Chemistry
the quantum yield for the gas phase photo decomposition of 2HI=hydrogen+iodine is approximately two. calculate the number of grams of HI decomposed per joule of radiant energy observed when HI is irradiated with monochromatic radiation with wavelength 207.0
Physical Chemistry
CrI3 + Cl2 = CrCl3 + I2 is this is this combination reaction, decomposition reaction, single replacement, double replacement, or combustion?
Physical Chemistry
Molar volume of an ideal gas at S.A.T.P. (25oC and 1.00 bar is 24.8 dm3 mol-1. Assume that gases are at 225oC and P=1.00 atmosphere before and after the combustion and behave as ideal gases.
The chemical equation for the combustion of butane is:
2C4H10(g) + 13O2(g) → 8CO2(g) + 10H2O(l)
At 225oC, we ignite a mixture of 5.00 dm3 of butane and 75.0 dm3 of O2
i. Is there enough oxygen for the complete combustion of the butane present?
ii. What gases are present in the resulting mixture after combustion?
iii. Calculate the final volume of the mixture after combustion (3 sig. fig).
Iv. Calculate the amounts (number of moles) of O2 and butane consumed using the molar volume of an ideal gas at S.A.T.P (3 sig. fig).
v.The final mixture is cooled down from 225oC to 25oC. Calculate the volume of the resulting gaseous mixture (3 sig. fig.).
The chemical equation for the combustion of butane is:
2C4H10(g) + 13O2(g) → 8CO2(g) + 10H2O(l)
At 225oC, we ignite a mixture of 5.00 dm3 of butane and 75.0 dm3 of O2
i. Is there enough oxygen for the complete combustion of the butane present?
ii. What gases are present in the resulting mixture after combustion?
iii. Calculate the final volume of the mixture after combustion (3 sig. fig).
Iv. Calculate the amounts (number of moles) of O2 and butane consumed using the molar volume of an ideal gas at S.A.T.P (3 sig. fig).
v.The final mixture is cooled down from 225oC to 25oC. Calculate the volume of the resulting gaseous mixture (3 sig. fig.).
Physical Chemistry
A gas sample occupies 3.25 liters at 24.5 degrees Celsius and 1825 mm hg. Determine the temperature at which the gas will occupy 4250 ml at 1.50 atm
Physical Chemistry
water ,h2o,is an example of a(an)...
Physical Chemistry
I am currently attempting to make a Chemical Equation Model. This is my equation:
Phosphoric Acid plus Calcium hydroxide yields Calcium Phosphate plus Water
How do i make a 3D model of this?
Phosphoric Acid plus Calcium hydroxide yields Calcium Phosphate plus Water
How do i make a 3D model of this?
Physical Chemistry
a student given four samples labeled w,x,y and z.all have a metallic luster.she is told that the solids could be gold,lead sulfide,mica,(which is quartz ),and iodine.the result of her investigations are:(a)w is a good conductor;x,y, and z are poor electrical conductors.(b)When the solids are hit with hammer,w flattens out,x shatters into many pieces,y is smashed into powder, and z is not affected.(c)When the solids are heated with Bunsen burner,y melts with some sublimation,but x,w, and z do not melt.(d)In tretment with 6 M ammonia,x dissolves; there is no effect on w,y, or z.On basis of these test results,identify the solids and explain your answers
Physical Chemistry
What is the free energy change, ∆G, of transforming water that is at 100⁰C and 1atm to vapour at
the same conditions? (∆H= 9.72 kcal molar enthalpy of vaporization at given conditions)
the same conditions? (∆H= 9.72 kcal molar enthalpy of vaporization at given conditions)
Physical Chemistry
a sample of gas in a right container at -15 degree Celsius exerts a pressure of 400 torr. What temperature is needed to change the pressure to 150mmHg?
Physical Chemistry
What is the volume of 7.50 mol krypton at STP?
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#339914 on Dec 2023
#339914 on Dec 2023