Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
construct a born haber cycle for the formation of the hypothetical compound nacl2 where the sodium ion has a 2 chargea
suppose you have a solution of acid hf with concentration of 0003m what would the concentration of h and f- be at
you need to make 500 ml of 100 mm potassium phosphate buffer at ph 75 you have the stock solutions of kh2po4 and k2hpo4
born-haber cycles are called cycles because they form closed loops if any five of the six energy changes in the cycle
h ow many moles of oxygen are formed when 586 g of kno3 decomposes according to the following reaction the molar mass
the solubility of a slaked lime caoh2 in water is 185g100ml what volume of 00400 m hcl is needed to neutralize 100ml of
compound ch32cchch3 contains 8563 g carbon per 1000 g compound calculate the mass g of a sample of ch32cchch3 if it
calculate the energy change in kilojoules per mole when lithium atoms lose an electron to bromine atoms to form
calculate the change in internal energy u2-u1 in kjkg of oxygen o2 when the temperature of the gas is increased from
helium gas is contained in a pressure vessel of volume v10m3 determine the mass in kg of helium in the tank if the
what will be the temperature difference needed in a hot-air balloon to lift 100 kg of mass assume that the volume of
water softeners often replace calcium ions in hard water with sodium ions since sodium compounds are soluble the
1000 ml of 0100 m acetic acid is placed in a flask and is titrated with 0100 m sodium hydroxide an appropriate
a certain reaction has an activation energy of 5742 kjmol at what kelvin temperature will the reaction proceed 350
one of the major problems in peptide synthesis concerns racemization of the amino acids if all the stereogenic centers
a pentapeptide was found to contain the amino acids phe gly met ala and ser n-terminal analysis yielded the pth
carry out the following mathematical operations and give each result with the correct number of significant figures 105
we are unable to detect iron via atomic spectroscopy the problem is we have added fe-edta in a formulation for
a student titrated 10ml aliquots of her unknown amino acid solution with standard 01521m naoh and with 00986m hcl
given that one mole of naoh reacts exactly with one mole of potassium hydrogen phthalate write the chemical reaction
potassium hydrogen phthalate has a molecular mass of 2042 gmole how many moles of potassium hydrogen phthalate are in a
a sample of water at 230 c required an input of 169 x 104 j of heat to reach its boiling point 100 c what is the mass
urea is an organic compound widely used as a fertilizer its solubility in water allows it to be made into aqueous
how many moles of oxygen are formed when 586 g of kno3 decomposes according to the following reaction the molar mass of