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Ganezh [65]
3 years ago
13

Calculate the energy released when 24.8 g Na2O reacts in the following reaction

Chemistry
1 answer:
WARRIOR [948]3 years ago
5 0

Answer:

hey you wanna get it right try this one: 48.0 kcal

was released... at constant pressure.

Explanation:

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Pls help the answers and questions r in the pic
soldier1979 [14.2K]
It would be 9*10 to the -3
6 0
3 years ago
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The liquid dispensed from a burette is called ___________.
11Alexandr11 [23.1K]

The liquid that is been dispensed during titration as regards this question is Titrant.

  • Titration can be regarded as  common laboratory method that is been carried out during quantitative chemical analysis.
  • This analysis helps to know the concentration of an identified analyte.
  • Burette can be regarded as laboratory apparatus.

It is used in the in measurements of variable amounts of liquid ,this apparatus helps in dispensation   of liquid, especially when performing titration.

  • The specifications is been done base on their volume, or resolution.
  • The liquid that comes out of this apparatus is regarded as Titrant, and this is gotten during titration process, which is usually carried out during volumetric analysis.

Therefore, burrete is used in volumetric analysis.

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brainly.com/question/2728613?referrer=searchResults

8 0
3 years ago
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How many moles are in 1.05 g of gold (Au)?
Wittaler [7]

Answer:

0.005 mol

Explanation:

Moles is denoted by given mass divided by the molecular mass ,  

Hence ,  

n = w / m

n = moles ,  

w = given mass ,  

m = molecular mass .

From the question ,

w = given mass of Gold = 1.05 g ,

m = molecular mass of Gold = 197 g/mol

<u>Hence , moles can be calculated as -</u>

n = w / m = 1.05 g / 197 g/mol = 0.005 mol

7 0
3 years ago
If normal rainwater has a pH of about 6.50, what is the hydrogen ion concentration, [H+]?
IceJOKER [234]

Answer:

.000000316

Explanation:

H+=10^-pH

6 0
3 years ago
a rectangle solid has a length of 3cm a height of 4 centimeters and a width of 5cm what is the solid’s volume?
Dmitry_Shevchenko [17]

Answer:

Explanation:

volume = 60cm^3

8 0
2 years ago
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