Name given to the type of microscope that only has one lens.

What is a key difference between an electrolytic cell and a voltaic cell? The anode is where the oxidation takes place. The cath

Volgvan

the answer is "There is an outside energy source." in voltaic cells, there is not need of an external source of energy because they involve spontaneous reactions.

in both types of cells, the electrons move from anode to cathode, the anode is where oxidation takes place and cathode for reduction (an ox, red cat). also both have two half reactions.

6 0

4 years ago

Calcule el volumen de disolución de LiOH a 3.5 M, necesario para neutralizar una disolución de 25 ml de H2SO3 cuya densidad es d

Olin [163]

Respuesta:

0.11 L

Explicación:

Paso 1: Escribir la ecuación balanceada

2 LiOH + H₂SO₃ ⇒ Li₂SO₃ + H₂O

Paso 2: Calcular la masa de solución de H₂SO₃

25 mL de solución de H₂SO₃ tiene una denisdad de 1.03 g/mL.

25 mL × 1.03 g/mL = 28 g

Paso 3: Calcular la masa de H₂SO₃ en 26 g de Solución de H₂SO₃

La riqueza de H₂SO₃ es 60%, es decir, cada 100 g de solución hay 60 g de H₂SO₃.

26 g Sol × 60 g H₂SO₃/100 g Sol = 16 g H₂SO₃

Paso 4: Calcular los moles correspondientes a 16 g de H₂SO₃

La masa molar de H₂SO₃ es 82.07 g/mol.

16 g × 1 mol/82.07 g = 0.19 mol

Paso 5: Calcular los moles de LiOH que reaccionan con 0.19 moles de H₂SO₃

La relación molar de LiOH a H₂SO₃ es 2:1. Los moles de LiOH que reaccionan son 2/1 × 0.19 mol = 0.38 mol.

Paso 6: Calcular el volumen de solución de LiOH

0.38 moles de LiOH están en una solución 3.5 M. El volumen requerido es:

0.38 mol × 1 L/3.5 mol = 0.11 L

7 0

3 years ago

How is atomic number and mass related to protons, neutrons, & electrons?

artcher [175]

The atomic number is the numbers of protons

6 0

3 years ago

Read 2 more answers

The density of titanium metal is 4.51 g/cm3 at 25 ∘C What mass of titanium displaces 68.6 mL of water at 25 ∘C∘C?

goblinko [34]

Answer:

The mass of titanium displaces 68.6 mL of water is 309.4 g.

Explanation:

Given that:-

$\rho=4.51\ g/cm^3$

$V=68.6\ mL$

Also, 1 $cm^3$ = 1 mL

So, $V=68.6\ cm^3$

The expression for the calculation of density is shown below as:-

$\rho=\frac{m}{V}$

Using the above expression to calculate the mass as:-

$m={\rho}\times V$

Applying the values to calculate the mass as:-

$m=4.51\ g/cm^3\times 68.6\ cm^3=309.4\ g$

<u>The mass of titanium displaces 68.6 mL of water is 309.4 g.</u>

5 0

3 years ago

How to find chemical formula for copper ii nitride?

Pani-rosa [81]

We know that Copper ll 's symbol is $Cu^{+2}$ and Nitride's is $N^{-2}$

Because both have opposite charges of +2 and -2, they both cancel out when written. When writing a chemical formula, the cation (positive ion/element) is written before the anion (negative ion). The formula name already had the correct order. Therefore, your chemical formula is just CuN

Hope this helps!

5 0

3 years ago