Hydrochloric acid zinc reacting with

The hydronium ions present in a hydrochloric acid solution react with zinc to form hydrogen gas bubbles and dissolved zinc ions. 

When 0.40 g of impure zinc reacted with an excess of hydrochloric acid, 127 mL of hydrogen was collected over water at 10.°C. The external pressure was 737.7 Torr. (a) What volume would the dry hydrogen occupy at 1.00 atm and... 

A mixture of chromium and zinc weighing 0.362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted, 225 mL of dry hydrogen gas was collected at 27°C and 750. torr. Determine the mass percent of Zn in the metal sample. [Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas chromium reacts with hydrochloric acid to produce chromium(III) chloride and hydrogen gas.]... 

Acids can also be identified by their reaction with some metals. Aluminum, magnesium, and zinc react with aqueous solutions of acids to produce hydrogen gas. The reaction between zinc and hydrochloric acid is described by the following equation. 

Zinc reacts with aqueous hydrochloric acid to give hydrogen. 

The next thing one needs is a section of steel pipe, threaded at both ends, with a screw-on cap for each end. This is the pressure reaction vessel. Steel pipes are generally heavily galvanized with zinc. Zinc reacts with anunonia to form a crystalline mass inside the pipe, and generally messes up the reaction. The zinc on both the pipe and end caps must be stripped off by immersion in a 5% hydrochloric acid solution until the fizzing slows to a crawl. 

When small quantities of elemental hydrogen gas are needed for laboratory work, the hydrogen is often generated by chemical reaction of a metal with acid. For example, zinc reacts with hydrochloric acid, releasing gaseous elemental hydrogen ... 

Solid zinc reacts with hydrochloric acid to form aqueous zinc chloride and hydrogen gas. 

Zinc reacts with dilute Soluble iron(lll) salts hydrochloric acid. form insoluble Fe(0H)3 when they are reacted with a hydroxide base. 

The less active metals, such as zinc and iron, require a stronger acid. In these cases, the products are the salt of the acid and hydrogen gas. For example, zinc reacts with hydrochloric acid as follows ... 

R. Mellon (19) but using anhydrous reagents. He obtained an oil that reacted exothermically with hydroxylamine (oxime of m.p. 135°) and that isomerized to 2-oxy-4-methylthiazole (14) upon heating with diluted hydrochloric acid. The thiazolic nature of oxymethylthiazole was clearly demonstrated by its reduction by zinc powder distillation into 4-methylthiazole (23), the first free thiazole ever described. 

The possibility of the existence of organosilicone compounds was first predicted by Dumas in 1840, and in 1857 Buff and Wohler found the substance now known to be trichlorosilane by passing hydrochloric acid gas over a heated mixture of silicone and carbon. In 1863 Friedel and Crafts prepared tetraethylsilane by reacting zinc diethyl with silicon tetrachloride. 

Zinc chloride is also a catalyst for a liquid-phase process using concentrated hydrochloric acid at 100-150°C. Hydrochloric acid may be generated in situ by reacting sodium chloride with sulfuric acid. As mentioned earlier, methyl chloride may also be produced directly from methane with other chloromethanes. However, methyl chloride from methanol may be further chlorinated to produce dichloromethane, chloroform, and carbon tetrachloride. 

A 0.500-g sample of zinc-copper alloy was treated with dilute hydrochloric acid. The hydrogen gas evolved was collected by water displacement at 27°C and a total pressure of 755 mm Hg. The volume of the water displaced by the gas is 105.7 mL. What is the percent composition, by mass, erf the alloy (Vapor pressure of H20 at 27°C is 26.74 mm Hg.) Assume only the zinc reacts. 

How many grams of zinc metal are needed to react with hydrochloric acid to produce enough hydrogen gas to fill an 11.2 liter balloon at STP What would be the volume of this balloon at 27°C and 680 mm Hg pressure How many grams of zinc would be needed if sulfuric acid were used ... 

---