Monday
April 21, 2014

Homework Help: chemistry

Posted by joann on Monday, December 3, 2012 at 9:58pm.

A 0.286g sample of Zn was used to produce H2(g)by the reaction.
Zn(s)+ 2HCl(aq)> ZnCl2(aq) + H2(g)

The barometric pressure was recorded as 761.6mm Hg and room temperature was 20degreesC. When the water levels of the eudiometer tube and graduated cylinder were equal, the volume of H2 was measured as 94.8mL. Calculate the number of moles of hydrogen gas produced in the reaction. Also, calculate the theoretical number of moles that can be obtained with the given amount of metal. (assume the acid is in excess) Finally, determine the error

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - A 0.286g sample of carbon dioxide, CO2, has a volume of 585mL and a ...
chemistry - A 0.286g sample of carbon dioxide, CO2, has a volume of 585mL and a ...
chemistry - Zn(s) + 2AgNO3(aq) = 2Ag(s) + Zn(NO3)2 (aq) It would require_____g ...
Chemistry multiple choice - During today’s experiment we will produce hydrogen ...
Chemistry - A sample of zinc metal reacts completly with an excess of ...
chemistry - Upon decomposition, one sample of magnesium fluoride produced 1.65kg...
college chemistry - How many gram of Zn would be necessary to produce 534 grams ...
Chemistry - Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the ...
chemistry - In the chemical plating experiment zinc powder is dissolved in a ...
chemistry - The reaction described by the equation Zn + Hg2Cl2 <--> 2Hg +...

Search
Members