General Chemistry Answers

The rate of decomposition of dinitrogen oxide gas, NO_{2 (g)}, was studied at 650 K by evacuating 0.3 moles of the said gas in a 1-L container. After 30 minutes it was found out that 30.0% of NO₂ decompose to NO _(g) and O_{2 (g)}. Base on the rate law the order of reaction is second order. (a) What is the rate constant? (b) Calculate the half-life of the reaction (c) Determine the time required for the reaction to precede 75.0% to completion. (d) How many moles of NO₂ will remain after 40.0 minutes elapsed?

chitosan (200 mg) was dissolved in 20 mL of 1.25% acetic acid solution, and VES (600 mg) was dissolved in 25 mL absolute ethyl alcohol followed by the addition of a suitable amount of EDC what is suitable amount of edc

50 centimeters cubed of 1.0M suphuric acid was reacted with 3.2 g of metal carbonate m₂(co₃) culculate the random atomic mass of the fomula m₂ c o₃

What is the pH of a titration of 0.077 L of 0.5M HCl when 0.019 L of 0.25M NaOH have been added?

What volume of ethye(C₂H₂)measured at S.T.P would be evolved from 32g of the 50% pure dicarbide

cells that use amino acid tryptophan produce which products during the degradation reaction

why do we add ammonium sulfate to detect the production of hydrogen sulphide

What's the chemical formula of potassium manganate vii

What is the rate law of C₂H_{4 (g)}    +     H_{2 (g)}      →      C₂H_{6 (g)}

What is the rate law of CO_{2 (g)}        +        H_{2 (g)}        →        CO _(g)    +    H₂O _(g)