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Calculate rate constant for 1. level reaction where 81% of the matters have already react after 27 seconds.
Which of the following best describes the motion of the particles in a piece of steel? None are moving. A few are moving. All are moving. Most are moving.
In which conversion is an oxidizing agent required? a. CH3CH2CH2CH3
An aerosol spray can with a volume of 350. mL contains 2.29 g of propane gas (C3H8) as a propellant. (a) If the can is at 25°C, what is the pressure in the can? (b) What volume would the propane occupy at STP?
How many grams of CH3OH must be added to water to prepare 150mL of a solution that is 2.0 M CH3OH?
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
The disinfectant hydrogen peroxide (H2O2) decomposes to form water and oxygen gas.How much O2 will result from the decomposition of 3.21 mol of hydrogen peroxide?Answer in units of mol.
Solving this question helps the student to understand what is happening in a chemical reaction and to balance the given equation.
A green leaf has surface area 2.20 cm^2. If solar radiation is 1190 W/(m^2) , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
Using a solution of KMnO 4 has a percent transmittance of 27.3 percent when observed in a 1.15-cm cell at a wavelength of 525 nm. Compute the absorbance of this solution.
Our quality control department is being moved to a different location and will not be able to handle any projects for a few weeks.
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
if you take a 12.5 mL portion of the stock solution and dilute it to a total volume of 0.600L what will be the concentration of the final solution?
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