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VLD [36.1K]
3 years ago
11

A. What is the pH of 8.9 × 10−3 M HCl? B. What is the pH of 8 × 10−8 M HCl?

Chemistry
1 answer:
Leya [2.2K]3 years ago
7 0

Answer:

A. p(H) = 2.0506

B. p(H) = 7.0969

Explanation:

A.

p(H)= -log[H+]

p(H)= -log(8.9×10^-3)

p(H) = 2.0506

B.

p(H)= -log[H+]

p(H)= -log(8×10^-8)

p(H) = 7.0969

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The diagram and data below represent gas and the conditions of pressure, volume, and temperature of the gas in a rigid cylinder
Sedaia [141]

Answer:

2.3 L

Explanation:

when you have this eqaution you use P1V1T2=P2V2T1.

since you are looking for volume of gas cylinder that means you are looking for V2.

so you have your given P= 1.0 atm, V=2.5L, T=298K.

They ask you to use STP or standard pressure and temperature.

STP P= 1atm, STP T=273 K

so you are looking for V2 meaning you are going to get V alone so your new equation is P1*V1*TS/ P2* T1= V2

so you now substitue so its now 1*273*2.5/ 1* 298= V

682.5/ 298= V

Lastly V= 2.2902 and you round to tenths so now you have

V= 2.3 L

5 0
2 years ago
Cavendish carried out a second experiment to test the properties of the hydrogen gas produced in the experiment. Was this experi
love history [14]

Yes, this experiment is also an example of a chemical reaction. The original substance, hydrogen, disappeared, and a new substance, water, was formed.

6 0
3 years ago
Read 2 more answers
El ejemplo más claro para definir una cadena de electricidad es una red de pesca, si fuera posible identificar una sola partícul
Lynna [10]

Answer:

<em>Leptón</em>

<em></em>

Explanation:

Lepton son partículas elementales de espín de medio entero (espín 1⁄2), y se sabe que no experimentan interacciones fuertes. Los leptones se clasifican en leptones cargados (los leptones similares a los electrones) y leptones neutros (conocidos como neutrinos). Un electrón es un leptón. Los leptones cargados pueden combinarse con otras partículas para formar átomos compuestos de partículas y positronio, mientras que los neutrinos rara vez interactúan con algo, lo que los hace raros de observar.

<em>Dado que la electricidad es el resultado del movimiento o flujo de electrones, la única partícula representativa de esta fuerza es el leptón.</em>

7 0
3 years ago
Someone pls help me
beks73 [17]

Answer:

A. 4 cm, 40 mm

B. 5.5 cm, 50 mm

C. 8.8cm, 80 mm

D. 8.2 cm, 82 mm

E. 9.5cm, 95 mm

Explanation:

NB: 1 cm = 10 mm

8 0
3 years ago
The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the - explain please!
natta225 [31]
Okay, let's get this organized. 

Nucleus 
   ↓↓↓↓
Holds the Protons and Neutrons

Orbitals
   ↓↓↓↓
Electrons

Protons ⇒ Positive particle
Electrons ⇒ Negative charged particles 
Neutrons ⇒ No charge

Atomic number → Number of protons in the nucleus
<span>Atomic mass → Protons + neutrons 

</span>Answer: <span>The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the number of protons plus neutrons in the atom's nucleus. </span>
6 0
3 years ago
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