A first-order reaction, A products, has a half-life of 35 s. Which of thefollowing statements is true?O The rate constant of the reaction depends on the initial concentration of A.O The reaction goes to completion in 70 s.O The same quantity of A is consumed every 35 s.O The quantity of A that remains after 70 s is half of what remained after 35 s.O One quarter of the original amount of A is consumed in the first 17.5 s of thereaction. Rank the following aqueous solutions in increasing osmotic pressure at 298K, assuming complete dissociation where appropriate.1. 0.100 M NaClII. 0.200 M formaldehyde (H2C=CO)III. 0.100 M Ca(NO3)2O I= || < IIO = III < ||OI< Il < IIIO Il

Given that reaction is a First order one Half-Life is 35s Analyzing options to determine correct…

Rank the following aqueous solutions in increasing osmotic pressure at 298 K, assuming complete dissociation where appropriate. I. 0.100 M NaCl II. 0.200 M formaldehyde (H2C=O) III. 0.100 M Ca(NO3)2 OI= || < II O1= III < || O < Il < II O Il

Rank the following aqueous solutions in increasing osmotic pressure at 298 K, assuming complete dissociation where appropriate. I. 0.100 M NaCl II. 0.200 M formaldehyde (H2C=O) III. 0.100 M Ca(NO3)2 OI= || < II O1= III < || O < Il < II O Il

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

A first-order reaction, A products, has a half-life of 35 s. Which of the
following statements is true?
O The rate constant of the reaction depends on the initial concentration of A.
O The reaction goes to completion in 70 s.
O The same quantity of A is consumed every 35 s.
O The quantity of A that remains after 70 s is half of what remained after 35 s.
O One quarter of the original amount of A is consumed in the first 17.5 s of the
reaction.

Rank the following aqueous solutions in increasing osmotic pressure at 298
K, assuming complete dissociation where appropriate.
1. 0.100 M NaCl
II. 0.200 M formaldehyde (H2C=CO)
III. 0.100 M Ca(NO3)2
O I= || < II
O = III < ||
OI< Il < III
O Il <I < III
OI= || = |I|

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