Determine how many grams of nacl are required
Determine how many grams of NaCl are required to precipitate most of the ag+ ions from 2.50*102 ml of 0.0113 M AgNO3solution? Write down the net ionic equation for the reaction
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Calculate the amount of heat (KJ) given off when 2.43 X 10^4g of ammonia are formed according to the following equation. Assume that the reaction takes place under standard- state conditions at 25.0 degrees C
What is the binding energy of the electron in kJ/mol? (KE=1/2mv2; 1 electron volt (eV) = 1.602 x10-19J) when an X-ray photon of wavelength 0.999nm strikes a surface. The emitted electron has a kinetic energy of 940 eV.
Every class has 1 teacher and 25 students. For every 14 teachers there is 1 assistant principal. Find number of assistant principals present in high school?
Determine the numbers of photons will be required to raise the temperature of 2.0g of water by 1.7 K? Water is exposed to infrared radiation of wavelength 2.7x10-4cm.
An instructor wanted to develop a confidence interval for the mean GPA of the students in his class. He used the campus records system to obtain all their GPA's and computed the 95% interval as (2.32, 2.87). If he wants to use this interval to des
A quantity of 1.419 g of butane (C4H10) was burned in a constant-volume bomb calorimeter. Consequently the temp of the water to use by 6.24 degree C. T if the heat capacity of the bomb plus water was 10.4kJ/c.
In assessing the validity of any test of hypotheses, it is good practice to
Determine the amount of heat liberated (in KJ) from 305 g of mercury when it cools from 88.0 Degree C to 11.0 degree C
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