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a mixture of HCOOH and H2C2O4 is heated with conc. H2SO4 . The gas produced is collected and on treating with KOH solution the volume of the gas decreses by 1/6 th . calculate molar ratio of two acids in original mixture.
1.The reaction C + O2 CO2 is an example of a _______________reaction Metal + halogen -> halide b. Metal + oxygen -> metal oxide
Question- Explain why the addition of the HCL or NaOH improves the ability of azo dyes to dye fabrics.
an ideal diesel engine has a compression ration of 20 and uses air as the fluid. the state of air beginning the
How much of the drug substance has to be used (calculate)? B) How much NaCl do you need to add to hace an isotonic preparation?
Compare the acid or base strength of the following compounds and explain your ordering by explaining in terms of the difference in the structure.
A pure gold ring and pure silver ring have a total mass of 16.4g . The two rings are heated to 63.5 C and dropped into a 13.0 mL of water at 23.1 C. When equilibrium is reached, the temperature of the water is 25.2 C. What is the mass of gold ring
The specific heats of solid, liquid and gaseous ethanol are 0.97, 2.3 and 1.9 J/g•K, respectively. How much heat must be added to a 115.5 g sample of solid ethanol initially at 77 K to raise the temperature to 300 K.
Consider the reaction when aqueous solutions of ammonium sulfide and potassium nitrate are combined. The net ionic equation for this reaction is
The dependance of the equilibrium constant of a reaction on temperature is given by the van't Hoff equation: lnK = -change of H/(RT) + C where C is a constant
Which of the following elements has the Lewis symbol below, where Sy represents the elemental symbol? Sy :
Explain why would n-acetyltyrosine ethyl ester have a higher affinity for the active site in chymotrypsin than n-actylvaline ethyl ester based on their shape
Suppose a nearby storm passage causes the wind speed in the town to suddenly increase to 10.0m/s. What is the carbon monoxide concentration one hour later?
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