(a)
Interpretation:
The reaction that produces most
Concept introduction:
Hydrogen is a minor component of atmosphere and very less in Earth’s crust also. It is one of the most important substances in
(b)
Interpretation:
The solid that produces most
Concept introduction:
Hydrogen is a minor component of atmosphere and very less in Earth’s crust also. It is one of the most important substances in Inorganic chemistry as it is used as the precursor of many compounds. Hydrogen gas is very good reducing agent as it is used in the reduction of different metal oxide to their respective metals by heating at high temperature. It is one of the components of water gas also. Hydrogen gas is mainly produced by the reaction of metal and metal hydrides with water.
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GENERAL CHEMISTRY(LL)-W/MASTERINGCHEM.
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- If an electric current is passed through molten sodium chloride, elemental chlorine gas is generated as the sodium chloride is decomposed. :math>2NaCl(1)2Na(s)+Cl2(g) at volume of chlorine gas measured at 767 mm Hg at 25 °C would be generated by complete decomposition of 1.25 g of NaCl?arrow_forwardWhat mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH?arrow_forwardHow would you prepare from the solid and pure water (a) 0.400 L of 0.155 M Sr(OH)2? (b) 1.75 L of 0.333 M (NH4)2CO3?arrow_forward
- Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration of hydrogen in the palladium depends on the pressure of H2 gas applied, but in a more complex fashion than can be described by Henry's law. Under certain conditions, 0.94 g of hydrogen gas is dissolved in 215 g of palladium metal (solution density = 10.8 g cm3). (a) Determine the molarity of this solution. (b) Determine the molality of this solution. (c) Determine the percent by mass of hydrogen atoms in this solution.arrow_forwardDissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (Figure 5.12) at 22.4 °C causes the temperature to rise to 25.8 °C. What is the approximate amount of heat involved in the dissolution, assuming the specific heat of the resulting solution is 4.18 J/g °C? Is the reaction exothermic or endothermic?arrow_forwardNitric acid can be prepared by bubbling dinitrogen pentoxide into water. N2O5(g)+H2O2H+(aq)+2NO3(aq)(a) How many moles of H+ are obtained when 1.50 L of N2O5 at 25C and 1.00 atm pressure is bubbled into water? (b) The solution obtained in (a) after reaction is complete has a volume of 437 mL. What is the molarity of the nitric acid obtained?arrow_forward
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