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!
Problem- Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 32.0% of an Am-241 sample to decay?
Express your knowledge to solve the above question
To verify Boyle's Law using the relationship between gas volume and gas pressure when the amount of gas remains constant at certain temperature.
A mixture is prepared by adding 50.0 mL of 0.200 M NaOH to 75.0 mL of 0.100 M NaOH. What is the [OH-]? the answer is .140 M
determine the second order rate constant from the initial concentration and half life.the half life of a second order
All the following are postulates of the kinetic molecular theory of gases except A) the collisions between molecules are elastic. B) the gas molecules move randomly in straight lines in all directions.
Predict the major and minor products of the following reaction.
Calculate the concentration of OH- in a solution that contains 3.9 x 10 to the -4 M H30+ at 25 degrees C. Identify the solution as acidic, basic, or neutral.
Isopentyl acetate, a molecule composed of C, H, and O, smells like bananas. Combustion analysis of 1.750 grams of this molecule yields 1.695 g H2O and 4.142 g CO2. What is the simplest formula for isopentyl acetate
A 0.2570g of pure sulfamic acid, HSO3 . NH2, is neutralized by a KOH solution. A 25.70 mL of KOH was added to the solution and 3.40 mL of HCl was used to back titrate the solution.
A 5.13g sample of a solid containing Ni is dissolved in 20.0mL water. A 5.00mL aliquot of this solution is diluted to 100.0mL and analyzed in the lab. The solution was find out to contain 5.09 ppm Ni. Find the molarity of Ni in the 20.0mL solution..
A gas is confined to a cylinder under constant atmospheric pressure. When 415 J of heat is added to the gas, it expands and does 106 J of work on the surroundings. What is the value of \Delta H for this process? What is the value of \Delta E for t..
How many milliliters of a 0.210 M NaOH solution are needed to neutralize 25.0 ml of 0.125 M H2SO4(aq)? b) A 15.45 ml volume of 0.1327 M KMnO4(aq) is needed to oxidize 25.00 ml of a FeSO4(aq) in an acidic medium.
a 33.00 sample of an unknown solution is titrated with a 0.110 solution. the equivalence point is reached when 28.38 of
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