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!
If the half-life of a radioactive element is 30.0 years, how long will it take for a sample to decay to the point where its activity is 70.0% of the original value?
a. 15.4 years
b. 86.1 years
c. 5.0 years
d. 30.8 years
e. 12.2 years
The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/T (in K) is linear and has a slope of -7445 K. Calculate the activation energy for the reaction
What is the movement of electrons in an ammonia and hydrochloric acid reaction?
In the microscale oxidation of a Xylene to a Phthalic Acid, 825 mg potassium permanganate, 100 mg sodium carbonate, 3 mL water were put in flask and warmed then 125 microliters of unknown xylene and 10 mg detergent were refluxed for 45 minutes.
The entropy change of the universe for any spontaneous process is always positive The equilibrium constant is always greater than one for an extensive reaction
A 0.2254g sample of naphthalene (C8H10, 128.16g/mol) was burned in a bomb calorimeter with a heat capacity of 2.18kJ/K and temperature increased by 4.16 Celcius, what is the molar enthalpy of combustion for this compound
This entire mixture is then diluted to 1 liter with water. What is the final concentration of phosphoric acid
If the solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 202 kPa.
Cs in the metal with a bcc structure is 272 pm, calculate the expected atomic radius of the Cs atom with a coordination number of 12.
predict the ratio of the two masses of oxygen that combine with a fixed mass of lead to form PbO and PbO2? PbO:PbO2 oxygen mass ratio= ?/?
Write a balanced chemical reaction for the formation of "soap scum" from a mixture of soap and "hard" water
1. during an acid-base titration 23.3 ml of hcl completely neutralized 19.5 ml of potassium hydroxide 0.315 m.
What mass of ice at 0C must be added to 45g of water at 20C to cool it to the final temperature of 10C?
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