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aleksley [76]
3 years ago
7

How many moles are in 5.6 grams of Na?

Chemistry
2 answers:
a_sh-v [17]3 years ago
7 0
There are 0.244 moles in 5.6 grams of Na

Lubov Fominskaja [6]3 years ago
4 0

Explanation:

n=m/M

M(Na)=23

m(Na)=5.6

n=5.6/23

n=0.243moles

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The titration of Na2CO3 with HCl has the following qualitative profile: a. Identify the major species in solution at points A-F.
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Answer:

Answer is explained in the explanation section below.

Explanation:

Solution:

Note: This question is incomplete and lacks very important data to solve this question. But I have found the similar question which shows the profiles about which question discusses. Using the data from that question, I have solved the question.

a) We need to find the major species from A to F.

Major Species at A:

1. Na_{2} CO_{3}

Major Species at B:

1. Na_{2} CO_{3}

2. NaHCO_{3}

Major Species at C:

1. NaHCO_{3}

Major Species at D:

1. NaHCO_{3}

2. H_{2}CO_{3}

Major Species at E:

1. H_{2}CO_{3}

Major Species at F:

1. H_{2}CO_{3}

b) pH calculation:

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