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 student is instructed to prepare 3.00 L of a 0.100-M solution of copper(II) sulfate. She goes to the stockroom and finds a 100-g bottle of the anhydrous salt, which costs $14.00, and a 500-mL bottle of a 1-M solution, which cost $12.50. Which source provides the most economical way of making the solution?
Na2CO3 + CaSO4 --> CaCO3 + Na2SO4 Assuming that this reaction is complete and that there is 153mg/l of CaSO4 initially present, what is the mass load of the soda ash taht must be added to complete the reaction in:
A copper wire (density = 8.96 g/cm3) has a diameter of 0.18 mm. If a sample of this copper wire has a mass of 33 g, how long is the wire?
If the concentration of Mg2+ ion in seawater is 1350 mg/L, what OH- concentration is required to precipitate Mg(OH)2
When a 5.49-g sample of gaseous hydrogen bromide dissolves in 33.0 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 21.00 oC to 62.66 oC. Calculate H in kJ/mol HBr for the solution process.
A fossil was analyzed and determined to have a carbon-14 level that is 54.0 that of living organisms. How old is the fossil
Write an equation showing how this buffer neutralizes added acid HI. Write an equation showing how this buffer neutralizes added acid Ba(OH)2
A radioactive sample contains 1.30g of an isotope with a half-life of 3.5 days. What mass of the isotope will remain after 5.6 days? (Assume no excretion of the nuclide from the body.)
How long does it take to electroplate 0.5 mm of gold on an object with a surface area of 31 cm2 from an Au3+(aq) solution with a 8 A current. Recall the density of gold is 19.3 g/cm3.
A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2x10-8]
Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32 P, how many grams will remain after 98.0 days?
What mass of potassium chromate is needed to add to exactly 500g of water to produce a solution with vapor pressure of 21.50 torr at 24 C
If Ka for an acid, HA, is 0.00177, what is the pH at one half the equivalence point for a titration of 50.00 mL of 0.100 M HA with 0.100 M NaOH
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