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DC
and she is unsure of what IT IS! She does a few
experiments and finds that the chemical compound
has the following percent composition:
Mg: 10.89%
CI: 31.77%
0 57.34%
ty
Follow the steps below to figure out the empirical
formula
a Using a hypothetical sample of 100 grams, write
the mass of each element in a sample of 100
grams.
11 Write the empirical formula.
0/1
Do not worry about adding
subscripts.
For example, H, will be H20.
CMg
zoom in
The astronaut continues her studies on M
discovers another pure sample to analyze. She
12
1. Calculate the moles of Mg.

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust

The organs inside the body and how they function together