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faust18 [17]
3 years ago
12

Table salt is 42.7% sodium how many grams of salt contain 76 g of sodium

Chemistry
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer:

Số gam muối ăn cần là 76:42,7%=177,986 g

Explanation:

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7 0
4 years ago
A binary ionic compound is known to contain a cation with 51 protons and 48 electrons. The anion contains one-third the number o
7nadin3 [17]

Answer:

SbCl_3

Explanation:

The cation contains 51 protons and 48 electrons. The electrons are only lost not protons, so the element which corresponds to atomic number 51 is the cation which is Antimony (Sb).

Also, the charge on the cation is 51 - 48 = 3

This is because neutral atom contains the same number of electrons as protons.

Given the anion has one-third protons as cation which means thta:

Number of protons in anion = \frac {51}{3}=17

This corresponds to chlorine atom. The electrons are 1 greater than protons means that it has gain 1 electron.

So,

Sb     Cl

3         1

Cross multiply the valency.

So, formula is SbCl_3

4 0
3 years ago
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Answer:

The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62∘C 62 ∘ C .

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