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How many grams of Mg must react with HCl in order to produce 80 mL of hydrogen gas at STP?
Wiki User
∙ 15y ago
The key is to understand that Mg is limiting. Therefore, the final number of moles of H2 will equal the starting number of moles of Mg. Using gas law equations we can first find the moles of H2 and then find the moles of Mg. 1. PV = nRT --> n = PV/RT P = 760 mm Hg (pressure at STP) V = 80.0 mL (given) R = 62,400 mL-mm Hg/mol-K (constant) T = 273 K (temp. at STP) Now you have all the information you need to solve for the number of moles of Mg. Solve for moles and convert to grams.
Wiki User
∙ 15y ago
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Which metals react with acid to produce hydrogen?
I only know 3 metals that react with acids to produce hydrogen. They are Zinc, iron and magnesium. There are 3 acids which react with them: and It will produce hydrogen gas which is the lightest known gas and is flammable :)
What is the limiting reactant when 3.14g of nitrogen react with 2.79g of hydrogen to produce ammonia and how many grams of ammonia are produce?
Nitrogen is the limiting reactant and 4.15g of ammonia are produced.
If 4.0 g of hydrogen react with chlorine to produce 146 g of hydrogen chloride how many grams of chlorine reacted?
Balanced equation. H2 + Cl2 >> 2HCl 146 grams HCl (1mol/36.458g)(1mol Cl2/2mol HCl)(70.9g/11mol Cl2) = 72.9 grams
Zinc and hydrogen chloride react to produce?
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.
How many grams of nitrogen dioxide must react with water to produce 5.00 x 1022 molecules of nitrogen monoxide?
How many grams of nitrogen dioxide must react with water to produce 5.00 x 1022 molecules of nitrogen monoxide?
How many grams of calcium are required to react with 7.75 grams of water to produce calcium hydroxide and hydrogen gas?
8.62
Which metals react with acid to produce hydrogen?
I only know 3 metals that react with acids to produce hydrogen. They are Zinc, iron and magnesium. There are 3 acids which react with them: and It will produce hydrogen gas which is the lightest known gas and is flammable :)
What is the limiting reactant when 3.14g of nitrogen react with 2.79g of hydrogen to produce ammonia and how many grams of ammonia are produce?
Nitrogen is the limiting reactant and 4.15g of ammonia are produced.
Do acids make hydrogen when they react with some metals?
When acids react with metals they can produce hydrogen.
What happens when sulfur and hydrogen gas react to produce hydrogen sulfide?
It produce a toxic gas
Do bases react with metals to produce hydrogen gas?
no.
Does copper react with water to produce hydrogen?
yes it does.
If 4.0 g of hydrogen react with chlorine to produce 146 g of hydrogen chloride how many grams of chlorine reacted?
Balanced equation. H2 + Cl2 >> 2HCl 146 grams HCl (1mol/36.458g)(1mol Cl2/2mol HCl)(70.9g/11mol Cl2) = 72.9 grams
Is carbon dioxide react with acid to produce hydrogen gas?
No.
What happens when metals react with bases?
Some metals react with bases and produce hydrogen gas
What acids react with with metals to produce hydrogen and a salt?
1000 miles
When acids react with active metals they always produce what?
Hydrogen gas
