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kenny6666 [7]
3 years ago
6

HOW MANY GRAMS OF NAOH ARE NEEDED TO MAKE 500ML OF 2.5M NAOH

Chemistry
1 answer:
azamat3 years ago
3 0
Mass = volume  ×  concentration

Mass of NaOH needed  =  500 mL  ×  2.5 M
                                       =  1250 g
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A bluebird lives in a maple tree. It builds a nest in the tree, where its eggs can be protected from the harsh environment. This
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Answer:

commensalism

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Explanation:

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2 years ago
What is the rule for determining the mass of an atom
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3 years ago
One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

6 0
3 years ago
Na + CI2 =2NaC is It balanced
scoray [572]

Answer:

no, the correct answer is NaCI

Explanation:

you're welcome

3 0
3 years ago
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