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Amanda [17]
2 years ago
12

Ciencia que se encarga de las mediciones​

Chemistry
1 answer:
ziro4ka [17]2 years ago
4 0

Answer:

La metrología es la ciencia que se ocupa de las mediciones, unidades de medida y de los equipos utilizados para efectuarlas, así como de su verificación y calibración periódica.

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KatRina [158]
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What is the pressure if 0.567 moles of gas occupy 4.5 liters at a temperature of 300.0 K?
kakasveta [241]
The answer is D. Use the equation PV=nRT
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3 0
3 years ago
Write the fraction of the mass of kcl produced from 1 g of k2c03​
Minchanka [31]

Mass of KCl= 1.08 g

<h3>Further explanation</h3>

Given

1 g of K₂CO₃

Required

Mass of KCl

Solution

Reaction

K₂CO₃ +2HCl ⇒ 2KCl +H₂O + CO₂

mol of K₂CO₃(MW=138 g/mol) :

= 1 g : 138 g/mol

= 0.00725

From the equation, mol ratio K₂CO₃ : KCl = 1 : 2, so mol KCl :

= 2/1 x mol K₂CO₃

= 2/1 x 0.00725

= 0.0145

Mass of KCl(MW=74.5 g/mol) :

= mol x MW

= 0.0145 x 74.5

= 1.08 g

6 0
3 years ago
What temperature in degrees c is the freezing point of water?
guajiro [1.7K]
The freezing point of water is 0° C. The Celsius (centigrade) scale is based off of water, with the freezing point at 0° and the boiling point at 100°. (Google will probably tell you this in 10 seconds, then you wouldn't have had to wait 7 hours!)
5 0
3 years ago
Which of the following is an example of a situation where work occurs?
SIZIF [17.4K]

Answer:

D is the answer may be. I'm not sure.

4 0
2 years ago
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