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Which is more concentrated with respect to sodium ions, 50g of NaCl in 500mL of solution or 59g of Na2SO4 in 500mL of solution?
the specific heat capacity of silver is 0.235 jgmiddotk. its melting point is 962degc and its heat of fusion is 11.3
Consider a 100.0 mL of buffer solution that is 0.50 M CH3COOH and 0.50 M NaCH3COO. What is the pH of the solution after 10.0 mL of 1.0 M NaOH is added.
Which statement is not true about fission? Answer a. process requires initiation by a neutron b. products have smaller nuclei than reactants c. combination of atomic nuclei d. critical mass produces a chain reaction
A voltaic cell consists of a standard H2 electrode in one half-cell and a Cu/Cu2+ half-cell. Calculate [Cu2+] when Ecell is 0.25 V
1. calculate the four values of ph poh h and oh- for a 0.100 m of hcl.2. calculate the four values of ph poh h and oh-
to identify a diatomic gas x2 a researcher carried out the following experiement she weiged an empty 1.00l bulb then
Na2CO3(s) (sodium carbonate) can be prepared by heating NaHCO3(s) (sodium bicarbonate). If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium with the products which are formed at 100ºC, what will the total gas p..
Write a balanced equation for the reaction that occurs when hydrogen sulfate ion behaves as a Brønsted-Lowry acid in water.
Using the value of Ka from your titration curve, calculate that pH at the equivalence point?
In combustion studies of the use of H2 as an alternative fuel, HO is sometimes formed in flames by the reaction, H(g) + 1/2 O2(g) HO(g) Use the data below to calculate the value of Kc H2(g) 2 H(g) Kc = 0.00473 1/2 H2(g) + 1/2 O2(g) OH Kc = 0..
What wavelength of light would you report in units of nm, if the light had a wavelength of 7.60 x 10-10 m?
a sample of 1.0 mole of a perfect gas with cp= 20.8 JK -1 is initially at 3.25 atm and 310 k. It undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. calculate the final volume and temperature and the work done
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