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dalvyx [7]
3 years ago
14

How do I find the average atomic mass of the element

Chemistry
1 answer:
lozanna [386]3 years ago
6 0

To find the average atomic mass you must multiply all respective isotopic mass and its fractional abundance together and then add all the products.

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What is an example of why pH is important to the environment and individual organisms
Nikolay [14]
The answer is  example would be blood.<span>The </span>pH<span> affects the function of enzymes in </span>organisms<span>, including </span>humans<span>. ... What </span>are examples<span> of prokaryotic </span><span>organisms</span>
4 0
3 years ago
What happens if more product is added to a system at equilibrium
Phoenix [80]

Answer:

More reactants will be produced

Explanation:

Le Chatelier's principle; adding additional product or reactant will move the equilibrium left or right to compensate and come back to equilibrium

By adding more product to your system at equilibrium, the equilibrium will shift towards reactants, more reactants will be produced

7 0
3 years ago
Which statement correctly describes a characteristic that a scientific
777dan777 [17]

Answer:

A. To be precise, it must be able to make measurements repeatedly over a long period of time.

Explanation:

The precision of a scientific measuring tool can be defined as how close the values between multiple measurements are to each other, when repeated under the same conditions.

This ultimately implies that, the precision of a scientific measuring tool reflects the reproducibility and repeatability of its measurements, irrespective of how accurate the measurements are.

In science, one of the most effective ways to determine the precision of a scientific measuring tool is to find the difference between the highest and lowest measurements (measured values).

Hence, the statement which correctly describes a characteristic that a scientific measuring tool should have is that, to be precise, it must be able to make measurements repeatedly over a long period of time.

6 0
3 years ago
State of matter
Nina [5.8K]

Answer:

H₂

Explanation:

To solve this question we must find, as first, find the molar mass of the homonuclear diatomic gas using Graham's law. With the molar mass we can identify this gas

<em>Graham's law:</em>

\frac{V_a}{V_b} =\sqrt{\frac{m_B}{m_A} }

<em>Where V is the speed of the gases and m the molar mass of those:</em>

<em>As Va is 3.98 times Vb (And mB is molar mass of oxygen gas = 32g/mol)</em>

3.98 =\sqrt{\frac{32g/mol}{m_A} }

15.84 = 32g/mol / mA

mA = 2.02g/mol

As is a homonuclear diatomic gas, the molar mass of the atom is 1.01g/mol. Thus, the gas is:

<h3>H₂</h3>
4 0
3 years ago
How many moles are in 7.2 x 10^23 carbon molecules?
choli [55]

Explanation:

It is known that in 1 mole there are 6.023 \times 10^{23} atoms or molecules.

It is given that there are 7.2 \times 10^{23} carbon molecules. Therefore, calculate the moles as follows.

     Number of moles = \frac{7.2 \times 10^{23} molecules}{6.023 \times 10^{23} molecules/mol}

                                   = 1.196 mol

Thus, we can conclude that there are 1.196 mol in 7.2 \times 10^{23} carbon molecules.

7 0
3 years ago
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