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Setler [38]
3 years ago
11

How many moles of potassium bromide (KBr) are in 97.569 grams?

Chemistry
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

i thinks it's 119.86 or something close to that

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Determine the hydrogen ion concentration of solution B. [1]
bazaltina [42]
The hydrogen Ion concentration of solution  B is 
1.0 x  10^-5 or 0.000 010 M

You can see that this will be proportional to the amount of B's PH compared to A's

hope this helps
8 0
3 years ago
PLEASE PLEASE HELP
Eva8 [605]
Try googleing it that is how i got some of mine

8 0
3 years ago
(i) 1s 2 2s 2 2p 6 3s 1 (ii) 1s 2 2s 2 2p 6 3s 2 (iii) 1s 2 2s 2 2p 6 3s 2 3p 1 (iv) 1s 2 2s 2 2p 6 3s 2 3p 4 (v) 1s 2 2s 2 2p 6
Marizza181 [45]

Answer:

 (V) 1s 2 2s 2 2p 6 3s 2 3p 5

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The electron affinity is positive because it is an exorthermic reaction, meaning that, energy was released during the addition of an electron to the atom.

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5 0
3 years ago
How does heat affect the motion of atoms?
Black_prince [1.1K]
Due to heat , the kinetic energy of the atoms in the substance increases due to which they start vibrating vigorously and the inter-molecular attraction decreases and the substance increases in volume. For example, on boiling water...heat energy imparted makes the volume increase and finally turn into steam or water vapour in air.(The inter-molecular space in air is more than that in water.)
3 0
3 years ago
A 0.35 L balloon found at 19 C is heated in an oven to 250 C. What is the new volume of the balloon?
Svet_ta [14]

Answer:

V = 0.63 L

Explanation:

To solve this problem, we need to use the Charle's law which is a law that involves temperature and volume, assuming we have a constant pressure. The problem do not state that the pressure is being altered, so we can safely assume that the pressure is constant (Maybe 1 atm).

Now, as the pressure is constant, the Charle's law is the following:

V₁ / T₁ = V₂ / T₂   (1)   V is volume in Liter, and T is temperature in Kelvin.

Using this law with the given data, we solve for V₂:

V₂ = V₁T₂ / T₁

Before we use this expression, let's convert the temperatures to Kelvin:

T₁ = 19 + 273 = 292 K

T₂ = 250 + 273 = 523 K

Now, let's calculate the volume of the balloon:

V₂ = 0.35 * 523 / 292

<h2>V₂ = 0.63 L</h2>
5 0
3 years ago
Read 2 more answers
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