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 certain flexible weather balloon contains helium gas. Initially the balloon is at sea level, where the temperature is 25 °C and the barometric pressure is 720 torr. The balloon then rises to an altitude of 6000 ft, when the pressure is 605 torr and the temperature is 15 °C. What is the change in volume of the balloon as it ascends from sea level to 6000 ft?
a.15 V1 = V2
b. 0.75 V1 = V2
c. 1.21 V1 = V2
d. 0.71 V1 = V2
Calculate the enthalpy of the reaction: 2NO(g) + O2(g) --> 2NO2(g) given the following reactions and enthalpies of formation: 1/2 N2(g) + O2(g) --> NO2(g), delta H *A = 33.2 kJ 1/2 N2(g) + 1/2O2(g) --> NO(g), delta H *B= 90.2 kJ
Suppose a 80-kg person drinks 3 L of water every day for 80 years with a arsenic concentration of 50 microgram/L. PF for arsenic is 1.75 (mg/kg-day)-1. Find the daily average dosage.
What is the balanced chemical equation for its reaction with nitric acid? Write the balanced chemical equation for its reaction with a potassium hydroxide.
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.60 mL of a 0.330 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
Use stoichiometry and the balanced reaction below to calculate to moles of NaOH added at the equivalence point from the mass of ammonium chloride used.
a sample of Ringer's solution contains the following concentractions (mEq/L) of cations: Na 147, K 4 and Ca2 4. If CI- is the only anion in the solution
benzylamine was titrated with 0.050 0 M HCl. Calculate the pH at the following volumes of added acid: Va = 0, 12.0, 30.0, 0.5 Ve, Ve, and 35.0 mL.
The first ionization energy of a gas-phase atom of a particular element is 6.24 x 10^-19 J. What is the maximum wavelength of electromagnetic radiation that could ionize this atom
molar mass has the units of gramsmole. molar mass serves as a conversion factor between numbers of moles and mass. if
The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate each of the following: molarity, molality, percent by mass, mol fraction, and mol percent.
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 23.0 L of 4.75 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution
a boy use a metalnbsp that was heat up in hot h2o and then put into a styrofoam cup of h2o at room temperature.
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