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Calculate the total pressure if the volume of the reaction container is then (i) doubled; or (ii) reduced 7-fold.
In the extracton mixture of naphthalene, benzoic acid, ethyl p-aminobenzoate: what form is the organic base and organic acid after extracted into aqueous phase
Draw energy level diagram to show the low- and high spin octahedral complexes of the transition-metal ions that have the electron configurations d4 d5 d6 and d7
What is the formula for the compound formed between germanium with a valency of (IV) and iodine? a. Ge4I2 b. Ge2I4 c. GeI4 d. GeI2
What must californium-250 be bombarded with to produce lawrencium-257 and 4 neutrons? a. carbon-8 b. boron-8 c. fluorine-11 d. boron-11
Find the standard change of entropy for the formation of CH2Cl29g) from its gaseous elements in their standard states. Please show and explain how you got the answer. Specifically how you came up wi
What is the formula for the compound formed between germanium with a valency of (IV) and iodine
at is the pH of this new solution. Assume no volume change after NaOH(s) was added. Molar Mass NaOH= 39.998 g/mol. Answer given was pH = 13.52, What are the steps to get here
A sample of 0.05567 mole sodium acetate was dissolved into 150.0 mL of water. If 2.00g of NaOH(s) was added to the solution and allowed to dissolve
photosynthesis in plants generate sugars such as glucose (C6H12O6) and oxygen from carbon dioxide and water. how many kilograms of oxygen are produced from photosynthesis of 330 kg of carbon dioxide
Photosynthesis in plants generate sugars such as glucose (C6H12O6) and oxygen from carbon dioxide and water. how many kilograms of oxygen are produced from photosynthesis of 330 kg of carbon dioxide
Determine the moles of NaOH b. Determine the moles of HCl c. Calculate the concentration of HCl
Describe the ideas behind direct comparison and standard addition methods in the analysis of ICP-OES
What precautions must one take in using internal standard method for analysis of samples in complex matrices
A sample in a 1.0 mm cell absorbs 75.0% of the incident light at 510 nm. If the solution is 0.075 M, its molar absorptivity (M-1 cm-1) is:
Calculate the wavelengths of the following objects? c)a 83Kg athlete running exactly a 4 minute mile d)earth (mass=5.8x10^27g) moving through space at 2.8x10^4m/s
3- A 498mL sample of laughing gas, N2O, is at 30 *C and 414 torr pressure (a) How many gas molecules are present. (b) How many atoms are there
Given that the Ka for hypochlorous acid is 3.0x10^-8 determine the number of moles of sodium hypochlorite needed to prepare this solution.
Calculate the cell potential for the following reaction as written at 69 °C, given that [Mg2 ] = 0.876 M and [Fe2 ] = 0.0160 M. Standard reduction potentials can be found here.
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Carbon monoxide gas burns in oxygen to form carbon dioxide gas. Write a balanced equation for the reaction and determine the volume of oxygen needed to react completely with 561 mL of CO at 40.0°
Calculate the formate ion concentration and pH of a solution thatis 0.050M in formic acid (HCHO2; Ka=1.8*10^-4) and 0.10M inHNO3
If your titration solution is 0.431 M in NaOH, and the endpoint occurs at 13.20 mL of titrant, how many mmol of NaOH are required to reach the endpoint