Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A 2.78 10-4 M solution of a compound has an absorbance of 0.451 at 520 nm in a 1.00 cm cell. The solvent's absorbance under the same conditions is 0.019.
(a) What is the molar absorptivity of the unknown compound?M -1cm-1
(b) What is the concentration of the compound in a solution, if the absorbance of the solution in a 1.00 cm cell at 520 nm is 0.384?M
You are asked to prepare 150 mL of a 0.059 M solution of silver nitrate. How many grams of silver nitrate do you need to weigh out.
How many kilojoules of heat is required to completely covert 70.0 grams of water at 66.0° C to steam at 100°C?
When an outside plastic envelope is removed, O2 molecules penetrate the paper causing the reaction to begin. A Typical packet contains 250 grams of iron to warm your hands or feet for up to 4 hours.
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range. Its solubility in urine depends on the relative amount of protonated and unprotonated forms. A urine sam..
If 7.85 x 10 to the 24th power Sc atoms react with excess CaO, how many grams of each product will form? You will need to determine the equation of the reaction.
a ball is thrown verticall downward with an initial speed 11.3 m from a roof of a building 39.0m above the ground .how long doest it take to reach the ground? what is its speed of impact?
Antacid tablets contain a variety of bases such as NaHCO3, MgCO3, CaCO3 and Mg(OH)2, Only NaHCO3 has appreciable solubility in water. write a net ionic equation for the reaction of each antacid with aqueous HCl. include the state of each species. ..
An oxidation-reduction reaction in which 3 electrons are transferred has a deltaG(standard)=+18.55 kJ at 25 C. What is the value of E(standard)
Consider a solution that is 0.01M formic acid and 0.2M hydrochloric acid. Determine the pH of this solution.
compare the purity/identity of the samples from the extraction with the purity of the samples obtained from column chromatography.
Even with a drying tube, leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. Why? What is the product of this decomposition pathway?
Determine what is the percent yield of the reaction If 15.0 grams of Nitrogen and 2.00 grams Hydrogen react to produce 1.38 grams of Ammonia?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd