Answer:
Calcium (Ca)
Explanation:
If you look in your reference table next to each element in the top right corner it shows their charge whether it be positive, negative or zero
Answer:
M=0.380 M.
Explanation:
Hello there!
In this case, given those two solutions of aluminum bromide and zinc bromide, it is firstly necessary to compute the moles of bromide ions in each solution as shown below:
Now, we compute the total moles of bromide:
Then, the total volume in liters:
Therefore, the concentration of total bromide is:
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Ph 4=100 ions
Ph5=10.0 or 1,000
Each Ph unit has 10 times as many hydrogen ions as the unit above it.
First convert the given volume of hydrogen gas to grams by
multiplying the volume with the given density. The mass of hydrogen gas is
22.50197 grams. Then convert the mass of hydrogen to moles by dividing it with
its molar mass. Multiply the moles of hydrogen gas with 2/3 because in the
formation of ammonia you would need 3 mol of hydrogen to form 2 moles of
ammonia. Then multiply the moles of ammonia with the molar mass which is 17.031
grams. The mass of ammonia is 126.48 grams.