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NARA [144]
2 years ago
13

How many atoms of oxygen are in 3.45g of Na2SO4

Chemistry
2 answers:
kumpel [21]2 years ago
6 0

Answer:

HERE

Explanation:Therefore, there will be

6.022

×

10

23

oxygen atoms in

1

mole, or

18 g

of water.

Irina-Kira [14]2 years ago
4 0
4 atoms are in 3.45g of Na2SO4
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(2) The electron configuration of nitrogen is 1s22s²2p3​
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Explanation:

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5 0
3 years ago
To determine the concentration of 20.00 mL of an unknown solution of a monoprotic acid, it is titrated with 0.1093 M sodium hydr
Elanso [62]

Answer:

d) 0.1202 M

Explanation:

Let's consider the neutralization reaction between NaOH and a generic monoprotic acid.

NaOH + HA → NaA + H₂O

The used volume of NaOH is 41.63 mL - 19.63 mL = 22.00 mL. The moles of NaOH are:

22.00 × 10⁻³ L × 0.1093 mol/L = 2.405 × 10⁻³ mol

The molar ratio of NaOH to HA is 1:1. The moles of HA that reacted are 2.405 × 10⁻³ moles.

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2.405 × 10⁻³ mol / 20.00 × 10⁻³ L = 0.1202 M

7 0
3 years ago
______ molecules have no net electrical charge
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Answer:

A nonpolar molecule has no separation of charge

Explanation:

4 0
3 years ago
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Darya [45]

Answer:

Explanation:

sp² hybridization is found in those compounds having double bond .

Out of the given compounds only C₂H₂Cl₂ has double bond so this compound contains carbon with sp² hybridization .

Rest have sp³ hybridization because they are saturated compounds .

3 0
3 years ago
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Ilia_Sergeevich [38]

He could be blindfolded and know which was his and which was his sister's. All he would need to do is pick them both up and if they were too big then pick them up one at a time. The lumber might make it harder to tell, but this is a question about physical properties.

So there is a change in mass which for the purpose of this question should be  quite different. His sister's ought to be much lighter than his. He would find it easier to pick up.

8 0
3 years ago
Read 2 more answers
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