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Q1. How H2S can be converted to elemental form of sulphur?
Q2. What is the reaction between sodium sulphite and dilute sulphuric acid? Give balanced equation.
Q3. What is the gas evolved by reaction between sodium sulphite and dilute sulphuric acid? Give ionic equation.
Q4. Give two reactions for dehydration phenomenon.
Q5. Why sulphuric acid is a strong dehydrating agent?
Q6. What is the role played by sulphuric acid which is responsible for the reactions?
Q7. What is oil of vitriol?
Q8. What is the colour change in copper sulphate crystals from hydrated to anhydrous form?
Q9. Give the reaction for removal of water of crystallisation.
Q10. How sugar is mixed with sulphuric acid in the laboratory? Give reaction too.
Equivalence point was 18.46 mL and my second equivalence point was 33.185 mL. How to find the percent weight of Na2CO3 in the unknown using these two values?
KClO, find out the molar mass for this compound and the oxidation state of chlorine in it. State the oxide formula of chlorine for the corresponding oxidation state. Find out whether this oxide will react with HCL, NaOH and write the corresponding..
ag has two isotopes with the masses 106.90509 and 108.9047 the average atomic mass of ag is 107.8682 amu. what is the
The carbon-14 activity of some ancient Native American corn was found to be 7.0 disintegrations per minute (dpm) per gram of carbon. If present-day plant life has 16 dpm per gram of carbon
Uranium-235 is an important nuclear fuel. However, the ^235Uisotope is only a very small amount of naturally occurring uranium. Therefore, taking advantage of gas diffusion rates and molecular masses, naturaly occurring uranium(IV) oxide is conver..
Explain with 2.01 x 10-2 mol of HCO3- in a 3.0 g tablet of alka seltzer. Compute the total volume of stomach acid (pH=2) that this could neutralize.
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00 °C to 27.30 °C? The density of liquid bromine is 3.12 g/mL.
Describe each of the following equations in terms of 1)number of particals and 2)number of moles: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
A sample containing 2.00 mol of graphite reacts completely with a limited quantity of oxygen at 25 degrees C and 1.0 atm pressure, producing 481 kJ of heat and a mixture of CO and CO2. Calculate the masses of CO and CO2 produced.
a.State the number of atoms of each element on each side of the following equation. CH4(g)+2O2(g)→CO2(g)+2H2O(g) Express your answers as an integer separated by commas. NC,NH,NO = b.State the number of atoms of each element on each side of the follow..
A sample of uranium is enriched to 3.2 atom-percent in U-235 with the remainder being U-238. What is enrichment of U-235 in weight-percent
Based on the following values, the value for Delta S for the decomposition of one mole of gaseous sulfur trioxide to give solid sulfur and oxygen gas is: S(s): S = 31.88 O2(g): S = 205.0 SO3(g): S = 256.2
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