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3 years ago

The velocity of a wave is the product of the frequency and the

Chemistry

1 answer:

andreev551 [17]3 years ago

6 0

I would say A wavelength

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Find the [H+] in an acetic acid solution that has a pH of 5.12

Eva8 [605]

<span>Data:
pH = 5.2
[H+] = ?

Knowing that: (</span><span>Equation to find the pH of a solution)</span>
$pH = -log[H+]$
<span>
Solving:
</span> $pH = -log[H+]$
$5.2 = - log [H+]$
Knowing that the exponential is the opposite operation of the logarithm, then we have:
$[H+] = 10^{-5.2}$
$\boxed{\boxed{[H+] = 6.30*10^{-6}}}\end{array}}\qquad\quad\checkmark$

3 0

3 years ago

A car travels 33.52 miles in 28 minutes. how fast is the car moving

N76 [4]

The answer is 69.69 miles per hour

3 0

2 years ago

State collision theory

Georgia [21]

Collision theory states that when suitable particles of the reactant hit each other with correct orientation, only a certain amount of collisions result in a perceptible or notable change; these successful changes are called successful collisions.

<h3>Explanation:</h3><h3>here your answer mate </h3>

have a great day

5 0

2 years ago

A 15.5 g piece of chromium, heated to 100.0 degrees Celsius, is dropped into 55.5 g of water at 16.5 degrees Celsius. The final

elixir [45]

Answer: The specific heat capacity of chromium is $2010J/g^0C$

Explanation:

$heat_{absorbed}=heat_{released}$

As we know that,

$Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})$

$m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]$ .................(1)

where,

q = heat absorbed or released

$m_1$ = mass of chromium = 15.5 g

$m_2$ = mass of water = 55.5 g

$T_{final}$ = final temperature = $18.9^0C$

$T_1$ = temperature of chromium = $100^oC$

$T_2$ = temperature of water = $16.50^oC$

$c_1$ = specific heat of chromium= ?

$c_2$ = specific heat of water= $4.184J/g^0C$

Now put all the given values in equation (1), we get

$-15.5\times c_1\times (19.5-18.9)=[55.5\times 4.184\times (19.5-100)]$

$c_1=2010J/g^0C$

The specific heat capacity of chromium is $2010J/g^0C$

6 0

3 years ago

Hypothesize why carbohydrates are found in plant cell walls

kap26 [50]

Answer:

Plants can split starch into it's simpler glucose units for use as energy when needed. Cellulose is known as a structural carbohydrate because of the fibers formed by it's molecules. It is the major component of plant cell walls and comprises over half of the carbon found on planets.

Explanation:

I majored in Chemistry

8 0

2 years ago