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!
To measure calcium in breakfast cereal, 0.5216g of crushed Cheerios were ashed, dissonved in 6M HCl, quantitatively transferred to a volumetric flask, and diluted to 100.0mL. A 5.00mL aliquot of the cereal solution had an absorbance of 0.151AU when measured by flame atomic absorption. A second 5.00mL aliquot was spiked with 1.00mL of a 20.0ppm Ca(2+) standard. This spiked sample had an absorbance of 0.185AU. What is the wt% of calcium in the Cheerios?
commercial concentrated of nh3aq is 28 percent ammonia by mass. density of the solution 0.900 gml. compute the
find the probability of finding an electron in a 10 nm one dimensional box between 0.1 nm and 0.2 nm.
The volume of the gas collected =500 ml then determine the mass of O 2 is collected? The vapor pressure of H 2 O at 25 degree Celsius =23.8 torr
a) how many moles of sulfur are in 23.2 g of (C3H5)2S, b) how many atoms of hydrogen are in 0.75 mol of (C3H5)2S, c) how many grams of carbon are in 4.20 x 10^23 molecules of (C3H5)2S, d) how many atoms of carbon are in 15.0 g of (C3H5)2S
What is the volume of the air space when the bell has been lowered to a depth of 50m? Take the density of sea water to be 1.025gcm^-3 and assume that the temperature is the same as on the surface
at constant external pressure 1.2atm the temperature of 3.25 mol of ideal gas increased from 250k to 305k.calculate the
A steel cylinder holds 150.0 mol argon gas at 25 degrees C and a pressure of 9.53Mpa. After some argon has been used, the pressure is 2.00Mpa at 19 degrees C. What mass of argon remains in the cylinder.
a calorimeter contains 27.0 grams of h2o at the temperature of 14.5 degree celsius. when 1.40 grams of a substance that
what is the density of an object having the mass of 8.09 an volume of 25
At 25 degree celcius ,the second order reaction NOCL(g) - NO (g) + 1/2 CL2 (g) is 50 % complete after 5.82 hours when the initial concentration of Nitrosyl chloride is 4.46 ml/L.what time will it take for the reaction to be 75 % complete.
high boiling point are obtained now you need to identify the limiting reagent and compute the percent yield of nitrobenzene
A sample of a radioactive substance used in detecting skin cancer produced 592 counts in one minute at the beginning of a test and a count of 451 counts in one minute after one day. If the background counts-per-minute was 48, what is the half-life..
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