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lubasha [3.4K]
3 years ago
9

Ight I just here’s my first one

Chemistry
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer:

D

Explanation:

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Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming
Assoli18 [71]
The units of ppm means parts per million. Also, It is equivalent to milligrams per liter. It is one way of expressing concentration of a substance. It u<span>sually used to describe the concentration of something in water or soil. We calculate the mass of CaCO3 as follows:

Mass = 75 mg/L (.050 L) = <span>3.75 mg CaCO3</span></span>
7 0
3 years ago
Suppose that the saturation magnetization Mmax of the ferromagnetic metal nickel is 4.41 × 105 A/m. Calculate the magnetic momen
Lady bird [3.3K]

Answer : The magnetic moment of a single nickel atom is 4.82\times 10^{-24}Am^2

Explanation :

Formula used :

M_{max}=(\frac{N}{V})\times \mu

where,

M_{max} = saturation magnetization = 4.41\times 10^5A/m

N = Avogadro's number = 6.022\times 10^{23}atoms/mol

V = volume of nickel atom

\mu = magnetic moment

First we have to calculate the volume of nickel atom.

Density=\frac{Mass}{Volume}

8.90g/cm^3=\frac{58.71g/mol}{Volume}

Volume=\frac{58.71g}{8.90g/cm^3}

Volume=6.59cm^3=6.59\times (100)^3m^3

Now we have to calculate the magnetic moment of a single nickel atom.

M_{max}=(\frac{N}{V})\times \mu

4.41\times 10^5=(\frac{(6.022\times 10^{23})}{6.59})\times (100^3)\times \mu

\mu=4.82\times 10^{-24}Am^2

Therefore, the magnetic moment of a single nickel atom is 4.82\times 10^{-24}Am^2

7 0
3 years ago
What’s the percent by mass of 3.55g NaCL in 91.55g of solution
NISA [10]

Answer:

3.88%

Explanation:

Given parameters:

Grams of solute = 3.55g of NaCl

Grams of solution = 91.55g of solution

Mass percentage

of NaCl(%) = grams of solute/grams of solution x 100

Mass percent = 3.55/91.55 x 100

Mass percent = 3.88%

6 0
3 years ago
The strongest and most stable chemical bonds are a) covalent bonds
Paha777 [63]

Two of the strongest forms of chemical bond are the ionic and the covalent bonds. Chemical bonds form between two atoms, each with its own electron environment

5 0
4 years ago
A student uses a diagram to show the scale sizes of the planets. Which planet’s diameter would be approximate the distance of th
aliya0001 [1]

The correct answer is Mercury

Explanation:

In a circular object or spherical object such as a planet, the diameter is calculated by drawing a straight line from one side of the sphere to the other. This measure is the double of the radius (distance from the center to any side). In the case of planets, these differ not only in properties but also in size, which makes them have different diameters.

For example, the diameter of Earth is approximately 12,700 km, while the diameter of Jupiter (the largest planet) is almost 143,000 km. In this context, the planet with a diameter that is approximately the same that the distance from one coast to the other in the U.S. is Mercury because the diameter of this planet is almost 4879 kilometers and the distance from the West coast to the East coast is approximately 4828 kilometers, although this distance varies depending on the location.

6 0
4 years ago
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