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!
Question- A 2.194-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 degrees C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 2.304 g. Calculate the percent by mass of water in the hydrated calcium sulfate salt. Show all work.
Please provide the answer of the given question on urgent basis
a incandescent light-bulb of 80.0-w produces approx sixty percent of its energy as visible light. calculate how many
You have prepared a saturated solution of X at 20C using 27.0 g of water. How much solute can be dissolved if the temperature is increased to 30 C?
The spectrophotometer is to be set at 447nm. What experiment could you do, what data would you collect
The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side to span a distance of 3.90 mm
Why are the Kr---Kr and intermolecular Br---Br distances in the solid form of the two elements practically identical. How would you expect the Br---Br distances in solid CBr4 to be related to the above distances
the average molecular weight of a sample of pete is found to be 192000. how many of the repeating units are in the
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV
How many milliliters of a .250 M sulfuric acid solution would be required to completely react with 2.398 grams of solid aluminum hydroxide?
Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, what is the entropy change
Problem- Calculate the energy of a benzene (C6H6) molecule in the (nx,ny,nz) = (5,7,12) translational energy level in a 1mL container (hint: 1mL = 1 cm^3, so you know L in cm). Provide complete computation
Two syntheses using a grignard reagent, starting with an alkyl halide and later
A balloon contains 2.3 liters of nitrogen gas at a temperature of 77 K and a pressure of 101 kPa. If the temperature of the gas is allowable to increase to 39°C and the pressure remains constant, what volume will the gas occupy
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