Chemistry, 15.02.2021 14:00, aide1234564
Given an aqueous acetaminophen standard to prepare 2.0 x 10^-5 M, 4.0 x 10^-5 M, 10.0 x 10^-5 M, and 20.0 x 10^-5 M solutions of acetaminophen in 50 mL flasks, determine the volume of the standards required to put into each 50 mL flask.
Answers: 3
Chemistry, 22.06.2019 17:30, nijanicole164
A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159
Answers: 2
Chemistry, 22.06.2019 18:30, chinadoll24
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2β’2h2o sncl2β’4h2o sncl2β’6h2o
Answers: 2
Chemistry, 22.06.2019 20:20, carcon2019
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Chemistry, 22.06.2019 21:00, cxttiemsp021
The rate constant for the reaction below is 6.2 x 10β5 mol lβ1 s β1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?
Answers: 1
Given an aqueous acetaminophen standard to prepare 2.0 x 10^-5 M, 4.0 x 10^-5 M, 10.0 x 10^-5 M, and...
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