Chemistry, 22.04.2020 23:29 isabelsmhl
A solution is formed by mixing 0.400 mol NaOH into 0.800 kg water. What is the best set up to find molality?
m = mol solute/kg solvent
Calculate the molality of the solution.
.500m
A solution is formed by mixing 15.2 g KOH into 1.200 kg water. Use the periodic table to find the moles of solute.
mol KOH
Answer 1) 0.271 mol KOH
Answer 2) 0.226 m
Answers: 3
Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
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Chemistry, 22.06.2019 10:30
Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
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Chemistry, 22.06.2019 12:20
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
Answers: 3
A solution is formed by mixing 0.400 mol NaOH into 0.800 kg water. What is the best set up to find m...
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