What is the mass of 4.32 mol GaI3? (3 points)
a. 455 g
b. 1,230 g
c. 1,720...
Chemistry, 11.01.2021 22:20 ceceshelby2635
What is the mass of 4.32 mol GaI3? (3 points)
a. 455 g
b. 1,230 g
c. 1,720 g
d. 1,950 g
Answers: 1
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 15:00
Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat
Answers: 1
Chemistry, 22.06.2019 18:30
Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years
Answers: 2
Mathematics, 29.07.2020 01:01
Mathematics, 29.07.2020 01:01
Mathematics, 29.07.2020 01:01
Arts, 29.07.2020 01:01
Mathematics, 29.07.2020 01:01
Mathematics, 29.07.2020 01:01