The correct answer is 12.2% BaO.

The solution is found by dividing the mass of the BaO, which is 25.8 grams, by the total mass of the solution, which is 212 grams, then multiplying it by 100 to get the percentage:
$\frac{25.8}{212}*(100) =12.2%$

3 0

2 years ago

Write the following number correct to 2 significant figures: 3644000<br><br> Hurry Plz NO TIME!!!

Nadusha1986 [10]

3644000 rounded to 2 significant figures is equivalent to 3.6

8 0

2 years ago

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Change 23 degrees Celsius to F

Fed [463]

Rewrite the formula C=5/9(F-32) substituting 23 for C: 23=5/9(F-32), then multiply both sides by the reciprocal of 5/9.
(9/5)*(23)=(9/5)*5/9(F-32)
41.4=F-32; add 32 to both sides.
41.4+32=F-32+32
73.4=F

8 0

3 years ago

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