Other Chemistry Answers

Antimony pentachloride, SbCl5, decomposes according to the following equation:
←
SbCl5(g) → SbCl3(g) +Cl(g)

An equilibrium mixture in a 5.00 L flask at 448 °C contains [SbCl5] = 0.002575 M, [SbCl3] = 0.008014 M and [Cl2] = 0.008011 M

1.State the type of equilibrium in the reaction

2.Calculate the mass in grams of each species that will be found when the mixture is transferred into a 2.00 L flask at the same temperature.

1. In the laboratory, an experiment was done to investigate the effect of temperature on the rate of reactions. The rate of reaction was given by the expression
Constant/t = k[H+]^m[S2SO3-²]^n

The kinetic data obtained in the experiment is given by the following linear equation


-lnt = -4.498 × 10^3 ×1/T +11.32

1. Determine the reaction time at 50°C

2. Calculate the activition energy of the this reaction

describe the process of rna transcription

If I have an unknown quantity of gas at a pressure of 0.5 atm, a volume of 12 liters, and a temperature of 250 K, how many moles of gas do I have?

How many grams of nitrogen do I have if a sample of the gas occupies a space of 4.1 liters at a pressure of 1.2 atm, and a temperature of 800 K.

Absorbance of the sample solution is 0.152AU. The three main uncertainty sources of absorbance in photometric analysis are repeatability, drift of the photometer and uncertainty due to possible interfering effects. The respective uncertainty components were estimated by the analyst as follows: Repeatability standard deviation is 0.005AU, uncertainty due to possible drift is ± 0.001AU and uncertainty due to the possible interfering effects is ± 2% of the absorbance value.

Please calculate the combined standard uncertainty of absorbance. Please provide 4 decimal places after the decimal point.

a mole of bowling balls would cover the surface of the earth to a depth of how much?

1.Ammonia difuses 1.41times as fast as gas xH3 . determine the relative atomic mass of element x
2.A sealed gas tube containing air at stp was immersed in water at 100c . assuming there was no increase in the volume of the glass tube due to expansion of gas, calculate the pressure of the air inside the tube

1.Calculate the rfm of gasA given that the time taken for equal volumes of oxygen and gas A to diffuse through a hole is 20sec and 24 sec respectively
2.A given volume of ozone O3 ,diffused from a certain apparatus in 96 sec.calculte the time taken by an equal volume of carbon (iv)oxide to diffuse under the same condition
3.given that the time taken for equal volume of gas A and gas B to diffuse through the same hole is 20 and 24 , calculate the molecular mass of gas B if the molecular mass of A is 32

List the lab equipment you would use and state the procedure you would use to find the heat or enthalpy of solution for the reaction between excess powdered zinc and copper (II) sulphate.