Other Chemistry Answers

what dissolves most rapidly in 100 mL water

If 32.3 grams of CH4 is burned in excess oxygen, how many grams of carbon dioxide is produced?

For the reaction Q → W + X, the following data were obtained at 30°C. [Q] is M, Rate is in M/s

[Q]: 0.170 0.212. 0.357

Rate: 6.68 x 10^-3 1.04 x 10^-2. 2.94 x 10^-2

Determine the rate constant of this reaction and state its units?

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.

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.