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A chemist takes 50-gram sample

A chemist takes a 647 gram sample of this hydrate. She removes all the water possible from the sample and collects it. To this
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2. asked by John
3. 634 views
A chemist takes 50-gram sample of sulfur powder that has a melting point of 115.2 °C. What is the melting point of a 100-gram
1. 1 answer
2. 70 views
If a 40 gram sample of radioactive isotope was present at 4pm, but a 5 gram sample remained at 4:30 pm, what is the half-life in
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2. asked by Jason
3. 570 views
Please help me.1. A chemist adds 25.0 mL of a 43.4 g/dL iron (ii) bromide (FeBr2) solution to a flask. Calculate the mas in gram
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2. asked by Katie
3. 806 views
A chemist needs to know the mass of mgc12 a sample of to significant digits. She puts the sample on a digital scale. This is
1. 1 answer
2. 66 views
Plaster of Paris is the compound calcium sulfate hemihydrate, CaSO4*1/2H2OWhat mass of water is liberated when a 2.763 gram
1. 1 answer
2. asked by Roy
3. 1,515 views
A student wants to know if the effect of gravity is the same on all objects. She follows these steps.1. Drop a 5-gram ball, a 10
1. 1 answer
2. 50 views
4.1 x 10^3 bacteria are measured in a sand sample that weights 1 gram. Express in scientific notation the amount of the bacteria
1. 1 answer
2. 18 views
A student wants to know if the effect of gravity is the same on all objects. She follows these steps.1. Drop 5 gram ball, a 10
1. 1 answer
2. 31 views
1) A chemist discovered four bottles of liquid simply labelled A-D, eachof which contained a different pure organic compound.
1. 2 answers
2. asked by Spectroscopy
3. 147 views