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Ratling [72]
2 years ago
14

How many moles are in 19.6 g of Sodium (Na)? And the conversion factor?

Chemistry
1 answer:
Snezhnost [94]2 years ago
6 0

Answer:

n=0.852 moles

Explanation:

Given mass is, m = 19.6 g

The molar mass of sodium is, M = 22.99 u

We need to find the no of moles in 19.6 of Sodium. We know that, no of moles is equal to given mass divided by molar mass.

n=\dfrac{m}{M}\\\\n=\dfrac{19.6}{22.99}\\\\n=0.852

So, there are 0.852 moles in 19.6 g of Sodium.

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Specific heat means the amount heat needed when unit mass of a substrate increase one degree of temperature. So the specific heat = the heat absorbed/(the mass of the substrate * change in temperature) = 264.4/(16*35)=0.472 J/(g*℃)
5 0
2 years ago
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According to the octet rule, atoms tend to gain, lose, or share electrons until they are surrounded by ________ valence electron
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Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s) + H2SO4(aq) → 2HCl(g) + Na2SO4(s) How many grams of HC
SVETLANKA909090 [29]

Answer:

The correct answer is is option B

b. 93.3 g

Explanation:

SEE COMPLETE QUESTION BELOW

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s) + H2SO4(aq) → 2HCl(g) + Na2SO4(s)

How many grams of HCl can be prepared from 2.00 mol H2SO4 and 2.56 mol NaCl?

a. 7.30 g

b. 93.3 g

c. 146 g

d. 150 g

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CHECK THE ATTACHMENT FOR STEP BY STEP EXPLANATION

7 0
2 years ago
Which of the following would have the most kinetic energy?
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An airplane

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An airplane because of its position .

5 0
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Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product o
Marizza181 [45]

Answer:

30.6 g of C is formed.

Explanation:

2A + B → C

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