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Gwar [14]
3 years ago
13

why do the words ‘shake well before using’ indicate that the fruit juice in a carton is a suspension?

Chemistry
2 answers:
Harrizon [31]3 years ago
5 0
Because some of the particles in a suspension are large enough that they will settle out over time
Helen [10]3 years ago
5 0
"Shake well before use" is acommon reminder (in the form ofdirections typed on the pharmacylabel, an auxiliary label, or verbalinstructions) given by pharmacists topatients who receive oral suspensions.

Why do the words “Shake well before using” indicate that the fruit juice is a suspension?

Because some of the particles in a suspension are large enough that they will settle out over time.
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Which statement is correct for the element of proton number 19?
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3 years ago
A penny has a mass of 2.50g and the Moon has a mass of ×7.351022kg, How many moles of pennies have a mass equal to the mass of t
baherus [9]
Answer: 122 moles

Procedure:

1) Convert all the units to the same unit

2) mass of a penny = 2.50 g

3) mass of the Moon = 7.35 * 10^22 kg (I had to arrage your numbers because it was wrong).

=> 7.35 * 10^22 kg * 1000 g / kg = 7.35 * 10^ 25 g.

4) find how many times the mass of a penny is contained in the mass of the Moon.

You have to divide the mass of the Moon by the mass of a penny

7.35 * 10^ 25 g / 2.50 g = 2.94 * 10^25 pennies

That means that 2.94 * 10^ 25 pennies have the mass of the Moon, which you can check by mulitiplying the mass of one penny times the number ob pennies: 2.50 g * 2.94 * 10^25 = 7.35 * 10^25.

5) Convert the number of pennies into mole unit. That is using Avogadros's number: 6.022 * 10^ 23

7.35 * 10^ 25 penny * 1 mol / (6.022 * 10^ 23 penny) = 1.22* 10^ 2 mole = 122 mol.

Answer: 122 mol
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