07/14/23

chemistry: Fundamentals and Principals
Consider a sample containing 0.320 mol of a substance. How many atoms are in the sample if the substance is lead?How many atoms are in the sample if the substance is gold?How many molecules are... more
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07/12/23

Chemistry 2 - Partial Pressure
At a certain temperature, the equilibrium constant, 𝐾, for the given reaction is 53.3.H2(g)+I2(g)↽−−⇀2HI(g)𝐾=53.3 At this temperature, the reactants were placed in a container to react. If the... more
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03/07/23

What is the average mass and absolute uncertainty of calcium in each sample?

Five calcite, CaCO3CaCO3 (MM 100.085 g/mol), samples of equal mass have a total mass of 10.1±0.1 g10.1±0.1 g. What is the average mass and absolute uncertainty of calcium in each sample? Assume... more
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