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Marizza181 [45]
2 years ago
12

If you have 50 grams of water, how many moles would that be?*

Chemistry
1 answer:
ASHA 777 [7]2 years ago
5 0

Answer:

2.77 or 3 moles of water

Explanation:

Water or H2O has a Molar Mass of about 18.02 g/mol. n= 2.77 moles of water in a 50 gram sample. Water or H2O has a Molar Mass of about 18.02 g/mol

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I am Lyosha [343]

Answer:

Physical properties are changes in color, weight, mass, density, volume, whether it is freezing, tarnishing, boiling, etc. while chemical properties are changes in the compound of the object such as whether an object is/isn't flammable, affected by acid, it dissolves, ferments, rots, ignites in water, etc.

Explanation:

Physical property examples: a piece of steel is cut in half, a sugar cube is ground up into a powder, ice melts into water, clouds form in the sky, you mow the lawn, the water turned purple when you dropped red and blue dye in it, leaves grow in the spring, ethyl alcohol boils at 79° C, you cut apples up

Chemical property examples: pancakes cook on the griddle, fireworks explode in th sky, Alka-Seltzer gives off carbon dioxide when added to water, roasting a marshmellow, milk sours when left on the counter, burning wood in a bonfire, salt dissolves in water, food is digested in the stomach

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AleksAgata [21]
A is correct answer.

<span>The expansion of landfills with too much garbage to recycle. 
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Hope it helped you.

-Charlie
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3 years ago
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When an entire species perishes the species becomes extinct.
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What volume does 2.25g of nitrogen gas, N2, occupy at 273 Celsius and 1.02 atm​
kotykmax [81]
<h2><u>Answer:</u></h2>

0.126 Liters

<h2><u>Explanation:</u></h2>

V = mRT / mmP

First, convert the 2.25g of Nitrogen gas into moles. (m in the equation above)

2.25g x 1 mole / 28.0g = 0.08036 moles = m

28.0g = mm

Next, convert the 273 Celsius into Kelvin. (T in the equation above)

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(Quick Note: The R changes depending on the Pressure Unit so do not use this number every time.)

Now, plug everything into the equation.

V = (0.08036)(0.08206)(546.15)/(28.0)(1.02)

V = 0.126 L

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Answer: Thats false the Russians were the first

Explanation:

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