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Elza [17]
3 years ago
8

List the steps in the process of calculating average atomic mass given data about the isotopes of an element.

Chemistry
1 answer:
Nutka1998 [239]3 years ago
5 0
To calculate the atomic mass of an element, the atomic masses of their isotopes must be considered. Their abundances must also be taken into account. This is the formula used for the calculation:
avg. atomic mass= ∑ <span>(isotope × abundance).

</span>
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A box has 2 cm length, 3 cm width and 2 cm height. What is its volume? *
Valentin [98]
12cm cubed.
Formula is length x width x height and in this case it would be 2x3x2 which equals 23
3 0
3 years ago
Read 2 more answers
An analytical chemist has determined by measurements that there are 96.5 moles of carbon in a sample of acetic acid. how many mo
Nadya [2.5K]
The formula of acetic acid is CH3COOH => C2H4O2.

So, the acetic acid has the same number of atoms of carbon (C) than of oxygen (O).

Therefore, the sample that contains 96.5 moles of carbon, will contain also 96.5 moles of O.

Answer: 96.5 moles of oxygen.
3 0
2 years ago
In which one element replaces a similar element in a compound
ExtremeBDS [4]
<h3><u>Question</u><u>:</u><u>-</u></h3>

In which one element replaces a similar element in a compound?

<h3><u>Answer</u><u>:</u><u>-</u></h3>

A single-replacement reaction

<h3><u>Explanation:</u><u>-</u></h3>

A single-replacement reaction is a reaction in which one element of a compound is replaced by another.

8 0
2 years ago
How many grams do 3.6 × 10^20 atoms of sodium weigh?<br> Answer in units of g.
snow_lady [41]

Answer:

i

Explanation:

3 0
2 years ago
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. kf = 1.86ï°c/m
barxatty [35]
Freezing point depression is a colligative property.

The formula that rules it is:

ΔT f = Kf * m

Where m is the molality of the solution => m = moles of solute / Kg of solvent

=> m = 0.31 mol / 0.175 kg = 1.771 m

And kf = 1.86 °C/m

=> ΔTf = 1.771 m * 1.86 °C / m = 3.3 °C

 => Freezing point of the solution = normal freezing point of water - 3.3 °C = 0 - 3.3°C = - 3.3°C.

Answer: -3.3 °C


8 0
3 years ago
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