gayemotrashcan105 gayemotrashcan105

11-07-2017
Chemistry

contestada

How many liters of h2 gas can be produced at 0 ?c and 1.00 atm (stp) from 42.0 g of zn? zn(s)+2hcl(aq)?zncl2(aq)+h2(g)?

Respuesta :

Erythrosin17 Erythrosin17

21-07-2017

The chemical reaction would be :

Zn(s)+2HCl(aq) = ZnCl2(aq)+H2(g)

At STP 1 mol of an ideal gas is equa to 22.4 L of the gas. We need to assume that H2 produced is an ideal gas. We can calculate as follows:

42.0 g Zn ( 1 mol / 65.38 g ) ( 1 mol H2 / 1 mol Zn ) ( 22.4 L / 1 mol ) = 14.39 L H2 produced

Answer Link

Otras preguntas

A number of inherited diseases can be detected in utero by amniocentesis. which disease can be detected by this method?

Which phrase defines a law? a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable A statement

Among the following, which atom is most likely to form an ion with a charge of 2+?

steve has these score on the exams for this semester 89 92 and 87. How much will have to make on the fourth exam to have a final average of an A( 92% or better)

Austin noticed a really pretty girl helping out at the tutoring center. Austin was intrigued that she would volunteer her time to help out others and wanted to

which sescribes the matingof organisms that have different homozygous alleles for a sumgle trait

what are the two basic ways of generating electricity with hydropower ?

The midpoint of is point P at (−6,−2). If point E is at (2,−4), what are the coordinates of point F? (−14,0) (−10,−8) (−5,3) (−2,−3)

28. ¿te gusta la clase de arte? (1 point) a. no, no me gustan la clase de arte. b. si, me gusta la clase de arta c. no, no te gusta la clase de arte. d. no,

what has been the effect of the post mao leadership under Deng xiaoping in china