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3 years ago

A compound such as CaCl, would have an overall charge of?

Chemistry

1 answer:

Rina8888 [55]3 years ago

7 0

Calcium Chloride would have a charge of +2

Hopes this helps :)

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odium carbonate (Na2CO3Na2CO3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be add

Arte-miy333 [17]

Answer : The mass of sodium carbonate added to neutralize must be, $6.54\times 10^3kg$

Explanation :

First we have to calculate the moles of $H_2SO_4$ .

$\text{Moles of }H_2SO_4=\frac{\text{Mass of }H_2SO_4}{\text{Molar mass of }H_2SO_4}$

Given:

Molar mass of $H_2SO_4$ = 98 g/mole

Mass of $H_2SO_4$ = $6.05\times 10^3kg=6.05\times 10^6g$

Conversion used : (1 kg = 1000 g)

Now put all the given values in the above expression, we get:

$\text{Moles of }H_2SO_4=\frac{6.05\times 10^6g}{98g/mol}=6.17\times 10^4mol$

The moles of $H_2SO_4$ is, $6.17\times 10^4mol$

Now we have to calculate the moles of $Na_2CO_3$

The balanced neutralization reaction is:

$Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+H_2CO_3$

From the balanced chemical reaction we conclude that,

As, 1 mole of $H_2SO_4$ neutralizes 1 mole of $Na_2CO_3$

So, $6.17\times 10^4mol$ of $H_2SO_4$ neutralizes

Now we have to calculate the mass of $Na_2CO_3$

$\text{ Mass of }Na_2CO_3=\text{ Moles of }Na_2CO_3\times \text{ Molar mass of }Na_2CO_3$

Molar mass of $Na_2CO_3$ = 106 g/mole

$\text{ Mass of }Na_2CO_3=(6.17\times 10^4mol)\times (106g/mole)=6.54\times 10^6g=6.54\times 10^3kg$

Thus, the mass of sodium carbonate added to neutralize must be, $6.54\times 10^3kg$

3 0

3 years ago

Which scientist was the first to use the telescope in astronomy? Copernicus Newton Kepler Galileo

coldgirl [10]

The scientist that was the first to use the telescope in astronomy was Newton

8 0

3 years ago

If it takes ashley 3 seconds to run from the battere box to first base at an average speed of 4 meters per second, whar is the d

mrs_skeptik [129]

If it takes Ashley 3 seconds to run from the batters box to first base at a speed of 6 meters per second, the distance she covers in that time is 18 meters!

<em>Hope this helps! (:</em>

6 0

3 years ago

Please help me I need the answer and it’s due almost due I can’t fail

aliina [53]

(191.0 x 37.39) +(193.0 x62.42)
———————————————-
37.39+62.42

= 192.25 (2dp)

4 0

3 years ago

In a mixture of gases exerting a total pressure of 2.50 atm, carbon dioxide has a mole fraction of 0.450. What is the partial pr

AlladinOne [14]

Answer:

1.12 atm is the correct answer

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3 years ago