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dusya [7]
3 years ago
12

Copy the lists of measurements shown below. Pay close attention to the units that follow each number. List 1: 150 mL 11 mL 200 m

L List 2: 2 mL 801 mL 27 cm3 List 3: 1 L 999 mL 998 cm3
a. Cross out the smallest volume in each list. b. Circle the largest volume in each list.
Chemistry
2 answers:
stich3 [128]3 years ago
7 0

a) cross out 11mL from list 1, 2 mL from list 2, and 998 cm3 from list 3.

b) circle 200 mL from list 1, 801 mL from list 2, and 1 L from list 3.

zlopas [31]3 years ago
5 0
Cm^3 and mL are equals. 1000 mL = 1L. :) hope that helps you out!!
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How many atoms are in 0.500mol of calcium?
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3 0
3 years ago
CHEM HELP!
sweet [91]

So let's convert this amount of mL to grams:

\frac{13.6g}{1mL}*1.2mL=16.32g

Then we need to convert to moles using the molar weight found on the periodic table for mercury (Hg):

\frac{1mole}{200.59g}*16.32g=8.135*10^{-2}mol

Then we need to convert moles to atoms using Avogadro's number:

\frac{6.022*10^{23}atoms}{1mole} *[8.135*10^{-2}mol]=4.90*10^{22}atoms

So now we know that in 1.2 mL of liquid mercury, there are 4.90*10^{22}atoms present.

4 0
4 years ago
If you have a gold brick that is 2cm by 3cm by 4cm and has density of 19.3g/cm3, what is its mass?
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Therefore:

m = D x V

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m = 463.2 g
4 0
3 years ago
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