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 sample of organic matter was found to have an amount of 0.03125 grams of a substance (the final amount of that substance.). The initial amount of that substance in the organic matter was 0.5 grams. How many half-lives of that substance expired in going from the initial value to the final value? Show the steps that you use to reach your answer.
an ethylene glycol solution has 21.2 grams of ethylene glycol c2h6o2 in 85.4ml of h2o. calculate the freezing point and
what volume of dry hudrogen would be produced understandard conditions when 0.250 g of magnesium reacts withexcess
If the freezing point of a 0.106 m acetic acid solution is -0.203 C, Calculate the percent dissociation of the acid.
A buffer is to be prepared by adding solid sodium acetate to 0.10 M CH3COOH. Which of the following concentrations of sodium acetate will produce the most effective buffer
A 25.0-mL sample of 0.150 M hydrazoic acid is titrated with a 0.150 M NaOH solution. What is the pH after 13.3 mL of base is added. The Ka of hydrazoic acid is 1.9 x 10^-5.
You have a piece of metal that has a mass of 162 grams and a volume of 111 cm3. What is the density of your metal in units of grams per cm3?
Draw the structure of (1S,3R,4R)-1-tert-butyl-3,4-dimethylcyclohexane in its lowest energy chair-conformation.
The concrntration of the alkane C20H42 (FM 282.55) in particular sample of rainwater is 0.2 ppb. Assume that the density of rainwater is close to 1.00 g/mL
The decomposition of N2O5 is a first-order reaction: N2O5 ? 2NO2 + ½ O2. At 25 °C, it takes 5.2 h for the concentration to drop from 0.120 M to 0.060 M. Calculate the rate constant for the decomposition of N2O5.
one swimmer in a relay race has a 0.485 s lead and is swimming at a constant speed of 3.84 ms. he has 48.5 m to swim
Calculate the pH and pOH of each of the following solutions. [H3O+] = 1.5x10^-8 M? [H3O+] = 1.0x10^-7 M? [H3O+] = 2.2x10^-6 M
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 99% of the Mg2+ be precipitated as the hydroxide salt? (Ksp for Mg(OH)2= 8.9 x 10 -12.)
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