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How do you calculate the percent yield of [Co(NH3)5NO2]Cl2 ? What is the equation to form this cobalt complex?
calculate the maximum mass in grams of h2s that can form when 218 g aluminum sulfide reacts with excess water according
A silicon water is etched in a Cl2 plasma. A mass flow controller (used to meter the gas flow fed to the reactor) shows a reading of 100 sccm (sccm=standard cm3 per min; standard conditions are 273 K and 1 atm). The etching reactor operates at 100..
Problem- A solution is prepared by dissolving 0.65mol NaNO2 and 0.45mol HNO2 (Ka = 4.0 x 10-4) in 1.0L. If 0.20mol KOH is added what will be the pH? a) 2.92 b) 3.24 c) 3.40 d) 3.56 e) 3.93
If 10.00 g of magnesium is reacted with 95.75 g of copper (II) sulphate, magnesium sulphate and copper are formed.
the enthalpy change for melting ice at 0degc and constant atmospheric pressure is 6.01 kjmol. calculate the quantity of
In an excess of NH3 (aq), Cu^2+ forms a deep blue complex ion, Cu(NH3)4^2+ , which has a formation constant Kf= 5.6*10^11. Calculate the concentration of Cu^2+
1.500 g of Mg(s) was combined with 125.0 mL of 1.0 M HCl. The initial temperature was 25.0oC and the final temperature was 72.3oC.
In the series HF, HCl, HBr, HI, which is the strongest acid?
A 50.0 mL sample containing Ni2+ was treated with 25.0 mL of 0.050M EDTA to complex all of the Ni2+ and leave excess EDTA. The excess EDTA was then back-titrated, requiring 5.00 mL of 0.050M Zn2+ standard. What was the concentration of Ni2+ in the or..
the barometer at an indoor pool reads 105 kpa. if the temperature in the room is 30 degrees Celsius, what is the pressure of the air
What volume of O2 at 798 mmHg and 39 celsius is required to synthesize 19.0mol of NO
At 55.0C, what is the vapor pressure of a solution prepared by dissolving 75.8 g of LiF in 265 g of water?
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