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Gnesinka [82]
2 years ago
10

Q7-A graduated cylinder is filled to the 12.0 mL line with water. A solid with a mass of 14.52 g is placed in the graduated cyli

nder and is completely immersed in the water. If the density of the solid is 11.2 g/mL what will be the new volume reading on the graduated cylinder? a) 1.29 mL b) 10.71mL c) 13.29 g/mL d) 14.52 mL 2​
Chemistry
1 answer:
Tems11 [23]2 years ago
6 0

Answer:

If it served you, give me 5 stars please, thank you!

<h3><u>c) 13.29 mL</u></h3>

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A carbon atom has a strong tendency to do which of the following?. Answer. double bond with electrons. receive electrons. donate
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Answer: Option (d) is the correct answer.

Explanation:

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A carbon atom is also able to form a double double with valence  electrons of other atom.

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Why is it good to use blue and red litmus for the same solution?
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3 years ago
The number of oxygen atoms in 48.0g of oxygen gas
Doss [256]

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Explanation:

your welcome

brainlest PLEASEEEEEEE!

3 0
3 years ago
A compound with a molar mass of 60g/mol is 40.4% carbon, 6.7% hydrogen and 53.3% oxygen (by mass). determine the emperical and m
Fittoniya [83]

<span>A compound is found to be 40.0% carbon, 6.7% hydrogen and 53.5% oxygen. Its molecular mass is 60. g/mol. 
</span>Q1)
Empirical formula is the simplest ratio of whole numbers of components making up a compound.
the percentages have been given, therefore we can calculate for 100 g of the compound.

                                C                            H                        O
Mass in 100 g      40.0 g                       6.7 g                   53.5 g
Molar mass            12 g/mol                1 g/mol                 16 g/mol
Number of moles   40.0/12= 3.33         6.7/1 = 6.7          53.5/16 = 3.34
Divide by the least number of moles  
                             3.33/3.33 = 1           6.7/3.33 = 2.01   3.34/3.33 = 1.00
after rounding off
C - 1 
H - 2
O - 1

Empirical formula - CH₂O

Q2)
Molecular formula is the actual number of components making up the compound.
To find the number of empirical units we have to find the mass of one empirical unit.
Mass of one empirical unit = CH₂O - 12 + (1x2) + 16 = 30 g
Mass of one mole of compound = 60 g
Number of empirical units = 60 g / 30 g = 2
Therefore molecular formula - 2(CH₂O) 
 Molecular formula - C₂H₄O₂
4 0
3 years ago
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