Determining concentration of the reactant
A certain first-order reaction (A-->product) has a rate constant of 3.90×10-3 s-1 at 45C . How many minutes does it take for the concentration of the reactant,(A) to drop to 6.25% of the original concentration?
Expected delivery within 24 Hours
When heated, lithium reacts with nitrogen to form lithium nitride. What is the percent yield of the reaction if 13.9 of Li is heated with 33.3 g of N2 and the actual yield of Li3n is 6.64 g?
Calculate the mass of silver chloride required to plate 175 {rm mg} of pure silver.
A piece of silver (25 g) is heated to 100 degrees celsius, then dropped into 42.5 g of water with a temperature of 21.7 celsius. Assume they come to the same temp, what is the final temp of the silver and water?
Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, should be entered as [He]2s^22p^2.
A particular first-order reaction has a rate constant of 1.35 x10^2 s^-1 at 25 degrees Celsius. What is the magnitude of k at 95degress Celsius if Ea= 55.5 kJ/mol?
A certain first-order reaction has a rate constant of 3.90×10-3 at 45. How many minutes does it take for the concentration of the reactant to drop to 6.25 of the original concentration?
Mercury has a density of 13.6 g per mL. A barometer holding 9.50 mL of mercury has broken. The cost of mercury disposal is based on mass, how many kilograms of mercury were in the barometer?
When 6.6 g solid NaOH is dissolved in 30.0 g of water in a coffee cup calorimeter, the temperature rises from 25.5 to 36.1. How much heat is produced by the dissolution process? the specific heat is 4.184.
1926469
Questions Asked
3,689
Active Tutors
1448113
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
What term describes the wave-like muscle contractions that move food through the digestive tract?
Question: What is the function of the pharynx in the respiratory system? Need Assignment Help?
Problem: Completely rewrite the following paragraph about the porosity of materials and the effect on bloodstain patterns
Predict how unfavorable abiotic and biotic factors affect a species. ontrast primary and secondary succession.
Question: Which of the following is the limbic system LEAST likely responsible for?
Question: Which biome is characterized by an extensive canopy that allows little light to penetrate the ground
Targets of antiviral chemotherapeutics are: blocking transcription, blocking translation, integration of virus into cell blocking transcription