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balu736 [363]
3 years ago
9

How many moles of lithium are in 18.2 grams of lithium

Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
7 0

Answer: Take the molar mass of lithium from your periodic table and multiply it by 3.5 moles

Doss [256]3 years ago
6 0

Answer:

I think 2.6 sorry if its wrong

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How many atoms of lead are contained in 0.532mol?​
Colt1911 [192]

Answer:

3.2043 x 10²³

Explanation:

No. of Mole of lead (Pb) = 0.532 mol

No. of atoms of lead = ?

Solution:

Formula Used to calculate

no. of moles = numbers of particles (ions, molecules, atoms) /Avogadro's number

Avogadro's no. = 6.023 x10²³

So,

The formula could be written as

no. of atoms of lead Pb = no. of moles x 6.023 x10²³

Put the values in above formula

no. of atoms of lead Pb = 0.532 mol x 6.023 x10²³

no. of atoms of lead Pb = 3.2043 x 10²³

so 3.2043 x 10²³ atoms of lead are contained in 0.532 mole.

6 0
3 years ago
Calculate the volume in milliliters of a 5.55-g sample of a solid with a density of 3.03 g/mL
Marina86 [1]

(4.99 g) / (3.65 g/mL) = 1.37 mL

The answer to your question is 1.37ml.
8 0
3 years ago
1. A physician ordered 2.0 milligrams tetracycline to be given to a patient. If the tetracycline was available as 0.75 mg/mL of
Cerrena [4.2K]

Answer:

2.67 mL

Explanation:

The following data were obtained from the question:

Mass of tetracycline = 2 mg

Density of tetracycline = 0.75 mg/mL

Volume of tetracycline =?

We can obtain the volume of the tetracycline that should be given to the patient by applying the following equation:

Density = mass /volume

0.75 = 2 / volume

Cross multiply

0.75 × Volume = 2

Divide both side by 0.75

Volume = 2/0.75

Volume = 2.67 mL

Therefore, the volume of the tetracycline that should be given to the patient is 2.67 mL

6 0
3 years ago
Cell is to a tissue as brick is to _______.<br> Cement<br> Clay<br> Bricklayer<br> wall
svet-max [94.6K]

Answer:

bricklayer

Explanation:

is the correct answer

6 0
3 years ago
Where is glycogen stored? (choose all that apply)<br> muscles<br> bones<br> organs<br> skin
Yuliya22 [10]
Muscles bones no on organs and no on skin
6 0
3 years ago
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