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3 years ago

The most important reason why solid sodium hydroxide is not used as a primary standard is

Chemistry

2 answers:

ra1l [238]3 years ago

8 0

Answer:

idk

Explanation:

idk

Gwar [14]3 years ago

7 0

Answer:

NaOH is not suitable for use as a primary standard because they readily absorb moisture, H2O, from the atmosphere.

Explanation:

They readily absorb carbon dioxide from the atmosphere.

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It is true/falseit that when hydrogen cyanide, h c n , dissolves in water, the solution is weakly conducting and acidic in natur

cluponka [151]

False is the correct answer.

8 0

3 years ago

Which statement explains why H2O has a

Rama09 [41]

Answer:

Explanation:

H2O has a higher intermolecular force (hydrogen bonding) where N2 only has London Dispersion.

5 0

2 years ago

A solution is to be prepared with a sodium ion concentrationof

Lina20 [59]

Answer : The mass of sodium sulfate needed is 5.7085 grams.

Explanation : Given,

Concentration of sodium ion = 0.148 mol/L

Volume of solution = 2.29 L

Molar mass of sodium sulfate = 142 g/mole

First we have to determine the moles of sodium ion.

$\text{Concentration of sodium ion}=\frac{\text{Moles of sodium ion}}{\text{Volume of solution}}$

$0.184mol/L=\frac{\text{Moles of sodium ion}}{2.29L}$

$\text{Moles of sodium ion}=0.08035mole$

Now we have to calculate the moles of sodium sulfate.

The balanced chemical reaction will be,

$Na_2SO_4\rightarrow 2Na^++SO_4^{2-}$

As, 2 moles of sodium ion produced from 1 moles of $Na_2SO_4$

So, 0.08035 moles of sodium ion produced from $\frac{0.08035}{2}=0.040175$ moles of $Na_2SO_4$

Now we have to calculate the mass of sodium sulfate.

$\text{Mass of }Na_2SO_4=\text{Moles of }Na_2SO_4\times \text{Molar mass of }Na_2SO_4$

$\text{Mass of }Na_2SO_4=0.040175mole\times 142g/mole=5.7085g$

Therefore, the mass of sodium sulfate needed is 5.7085 grams.

3 0

4 years ago

**PLATO QUESTION, PLEASE ANSWER CORRECTLY, THANK YOU**

Nata [24]

The answers are the following that can be answered using the chart:

A. Which type of hurricane is expected to strike more frequently this century?
Category 4 + 5C. In general, will hurricanes likely become stronger or weaker this century?
Stronger, because there are more stronger ones thant he weaker ones that can result to hurricane.

E. Which types of hurricanes are expected to drop in frequency by more than 25% this century?
Categories 1, 2, 3

4 0

3 years ago

PLEASE ANSWERRRRRRRRRR

mylen [45]

Answer:

The second answer

Explanation:

The second answer

8 0

3 years ago