Chemistry, 02.12.2021 19:20 scastillo8
Calculate the ph when 51. 0 ml of 0. 100 m naoh solution have been added to 50. 0 ml of 0. 100 m hcl solution.
Answers: 3
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 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
Answers: 3
Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
Answers: 1
Calculate the ph when 51. 0 ml of 0. 100 m naoh solution have been added to 50. 0 ml of 0. 100 m hcl...
Mathematics, 25.03.2021 22:50
Social Studies, 25.03.2021 22:50
Mathematics, 25.03.2021 22:50
Mathematics, 25.03.2021 22:50
Physics, 25.03.2021 22:50
Mathematics, 25.03.2021 22:50
Mathematics, 25.03.2021 22:50
History, 25.03.2021 22:50