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Pavel [41]
3 years ago
15

How many kilograms are 1.21 x 10^-6 moles of zinc ?

Chemistry
1 answer:
Svetradugi [14.3K]3 years ago
7 0

Answer: The answer is 2.3 x 10 4's.

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In a particular titration experiment a 30.0 ml sample of an unknown hcl solution required 25.0 ml of 0.200 m naoh for the end po
Nikitich [7]
The balanced equation for the acid base reaction is as follows
NaOH + HCl ---> NaCl + H₂O
stoichiometry of NaOH to HCl is 1:1
the number of NaOH moles reacted - 0.200 mol/L x 0.0250 L = 0.005 mol
according to molar ratio
number of NaOH moles reacted = number of HCl moles reacted 
therefore number of HCl moles - 0.005 mol 
volume of 30.0  mL contains 0.005 mol
therefore 1000 mL contains - 0.005 mol / 0.030 L = 0.167 M
concentration of HCl is 0.167 M
5 0
3 years ago
Which of these structures are found in both plant and animal cells
erastova [34]

Answer: B

Explanation: The mitochondria are vacuoles and ribosomes are in both plant and animal cell

8 0
4 years ago
Which sequence repesent matter that is losing energy
astra-53 [7]

Which sequence repesent matter that is losing energy

answer: solid liquid gas



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5 0
3 years ago
Are the properties of a specific element the same as the properties of a molecule made up of that element? Why or why not?
LuckyWell [14K]

Answer:

no molecule and properties or defent

4 0
2 years ago
Convert 0.965 moles of H2O to grams SHOW WORK
Tasya [4]

Answer:

17.37 grams

Explanation:

mass=moles × molar mass

mass = 0.965 × 18

mass = 17.37g

5 0
3 years ago
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