If an ocean wave has a frequency of 2 hz and a speed of 4 m/s , what is the wavelength

Pure silver has a brilliant white metallic luster. How many moles of silver, Ag, are in 7.54 × 1023 atoms of silver?

AleksAgata [21]

The number of moles of silver, Ag, that are in 7.54 × 10²³ atoms of silver is 1.25 moles

From the question,

We are to determine the number of moles of silver, Ag, that are present in 7.54 × 10²³ atoms of silver

From the formula

$Number\ of\ moles =\frac{Number\ of\ atoms}{Avogadro's\ constant}$

Avogadro's constant = 6.022 × 10²³ atoms mol⁻¹

and

From the given information

Number of silver atoms = 7.54 × 10²³ atoms

Putting the parameters into the formula, we get

Number of moles of silver present = $\frac{7.54\times 10^{23} }{6.022\times 10^{23}}$

Number of moles of silver present = 1.2520757 moles

Number of moles of silver present ≅ 1.25 moles

Hence, the number of moles of silver, Ag, that are in 7.54 × 10²³ atoms of silver is 1.25 moles

Learn more on calculating number of moles here: brainly.com/question/15839520

7 0

2 years ago

Can someone please explain what orbits are? Like for example, how many orbits an element has

love history [14]

Answer: There are many possibilities for atomic orbits.

Explanation: In chemistry orbits, or orbitals, are the areas that electrons move around the nucleus of an atom. Think like the solar system.

There are three levels of orbitals (p,d, and f).

That should get you started. Use p, d and d described in your book to find out how many orbitals an atom has.

3 0

3 years ago

Which of the following statements regarding the importance of mineral resources is not true?

pishuonlain [190]

Answer:

They affect the weathering of molecules and atoms.

Explanation:

3 0

3 years ago

If the density of water is 1.00 g/mL, will an object with a density of 3.4 g/mL sink or float?

miss Akunina [59]

Explanation:

Objects or substances with their density greater than that of water will sink in it whiles those less than water will float on it.

From the question the object has a density of 3.4 g/mL.

Since it's density is greater than that of water the object will sink.

Hope this helps you

8 0

3 years ago

A cat that weighs 55 N sits on the top of a cat tree. It is 2 m above a 110N dog. How does the mass of the animals relate to the

Ivahew [28]

*sorry I can't give a full explanation.*

g = 9.8 m/s²

w = m*g

Weight of cat: 55 N = m*9.8

m = 5.61 kg

Weight of dog: 110 N = m*9.8

m = 11.22 kg

There is gravitational potential energy (GPE) acting on the cat since it's at the very top.

GPE of cat = m*g*h = 5.61*9.8*2 = 109.96 J

GPE of dog = m*g*h = 11.22*9.8*0 = 0 J (it's 0 m height because it's on the floor instead of in the tree)

But, if the dog was also 2 m up in the tree, its GPE would be 219.91 J.

As you can see, it's GRAVITATIONAL potential energy is bigger than the cat because it weighs more. Generally, if you were just trying to find the force which is w = m*g (since weight is a force), you would see that the bigger the mass, the bigger the force, and gravity stays the same.

Hope this helped

5 0

3 years ago