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Inorganic Chemistry
1. Calculate the equivalent mass of potassium bromate in the net reaction:
+ − − +
3As + BrO3 + 9H2O → 3H3AsO4 + Br + 9H
3
(Br = 80 amu)
2. What is the equivalent mass of arsenous oxide in the following reaction?
As O 2I 2H O As O 4HI 2 3 + 2 + 2 → 2 5 +
3. As an oxidizing agent, hydrogen peroxide is reduced to water.
H2O2 + 2H + 2e → 2H2O
+ −
How many grams of H2O2
constitute one gram milli-equivalent H2O2?
4. Na2
S2O3
5, can be oxidized to tetrathionate ions: H2O
− − −
2S O → S O + 2e
2
4 6
2
2 3
How many grams of Na2
S2O3
5. constitute 0.3 gram-equivalent?
+ − − +
3As + BrO3 + 9H2O → 3H3AsO4 + Br + 9H
3
(Br = 80 amu)
2. What is the equivalent mass of arsenous oxide in the following reaction?
As O 2I 2H O As O 4HI 2 3 + 2 + 2 → 2 5 +
3. As an oxidizing agent, hydrogen peroxide is reduced to water.
H2O2 + 2H + 2e → 2H2O
+ −
How many grams of H2O2
constitute one gram milli-equivalent H2O2?
4. Na2
S2O3
5, can be oxidized to tetrathionate ions: H2O
− − −
2S O → S O + 2e
2
4 6
2
2 3
How many grams of Na2
S2O3
5. constitute 0.3 gram-equivalent?
Inorganic Chemistry
which hybridization in nytrate
Inorganic Chemistry
please tell me about hybrization in nytrate
Inorganic Chemistry
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Inorganic Chemistry
Suppose a similar experiment had been done using 1.0M H3PO4 solution as the acid. What would be the stoichiometric ratio, mol H3PO4/mol NaOH , at the intersection of the ascending and descending portions of the graph for such an experiment? Explain.
Inorganic Chemistry
how many particles of CO2 can be produced from 20.0grams of O2?
Inorganic Chemistry
Write a report based on the notes given below.
0.10g glycine and 0.4ml water taken in 5ml conical vessel. Warmed slightly to dissolve the glycine. 0.3ml acetic anhydride added and stirred about 5 minutes. Mixture cooled in the ice bath for 10 minutes. Precipitate collected by suction filtration and washed with a few ml of water. Crystals spread over a piece of filter paper or watch glass and air dried for 10 minutes.
Glycine dissolved after 20 seconds when warmed in glycine water mixture.
White needle-shaped crystals formed when reaction mixture cooled in ice.
0.14gm of solid obtained after filtration and drying of product.
Mp of crystals recorded as 205-207.
Solid product possible still slightly wet.
Conclusion: Crystallized material was in fact acetamilide based on its melting point. Not highly pure. A second crystallization should produce a fairly pure material. But it would also decrease % recovery.
0.10g glycine and 0.4ml water taken in 5ml conical vessel. Warmed slightly to dissolve the glycine. 0.3ml acetic anhydride added and stirred about 5 minutes. Mixture cooled in the ice bath for 10 minutes. Precipitate collected by suction filtration and washed with a few ml of water. Crystals spread over a piece of filter paper or watch glass and air dried for 10 minutes.
Glycine dissolved after 20 seconds when warmed in glycine water mixture.
White needle-shaped crystals formed when reaction mixture cooled in ice.
0.14gm of solid obtained after filtration and drying of product.
Mp of crystals recorded as 205-207.
Solid product possible still slightly wet.
Conclusion: Crystallized material was in fact acetamilide based on its melting point. Not highly pure. A second crystallization should produce a fairly pure material. But it would also decrease % recovery.
Inorganic Chemistry
(a) The reaction between hydrogen, H2(g), and nitrogen monoxide, NO(g), has the following rate equation,
rate = k[H2(g)][NO(g)]2,
The overall equation for the reaction is,
2H2(g) + 2NO(g) → N2(g) + 2H2O(l),
and the reaction takes place by a two step mechanism.
(i) What is the meaning of reaction mechanism?
(ii) Explain what a rate determining step is.
iii) Giving your reasoning, write two equations that could describe the two mechanistic steps for the above reaction. It is important to identify the rate determining step.
rate = k[H2(g)][NO(g)]2,
The overall equation for the reaction is,
2H2(g) + 2NO(g) → N2(g) + 2H2O(l),
and the reaction takes place by a two step mechanism.
(i) What is the meaning of reaction mechanism?
(ii) Explain what a rate determining step is.
iii) Giving your reasoning, write two equations that could describe the two mechanistic steps for the above reaction. It is important to identify the rate determining step.
Inorganic Chemistry
what is the molality of semimolar nacl soln if density is 1.16gcm-3
Inorganic Chemistry
How do you calculate the of solid Ba(NO3)2 required?
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#340153 on Dec 2023
#340153 on Dec 2023