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4 years ago

Which of the following allows you to convert between atoms or molecules and mass of an element or compound?

Chemistry

1 answer:

faltersainse [42]4 years ago

7 0

Molar Mass and Avogadro's constant

Explanation:

Molar mass is calculated by using the mass chemical compound, and the amount of substance. So, to find the molar mass of a particular element or the compound, we have to divide the mass of the given chemical compound or the chemical element( grams) by amount of substance ( moles).

We can add the standard atomic mass (g/mole) of constituent atoms to find the molar mass of the compound.

To convert atoms to molecules, we have to dive the number of atoms by Avogadro constant which is 6.022 x 10^23.

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What do all atoms of the same element have

nordsb [41]

Answer:

All atoms of the same element have always have the same amount of protons.

Explanation:

Atoms of the same element have always have the same amount of protons but not always the same electrons and neutrons. If an atom gains or loses one of its valance electrons, the electrons on the outermost shell, then it becomes ionized. Also not all atoms of the same element have the same amount of neutron. This is called an isotope. A good example would be Carbon 13. Normally, Carbon atoms have an atomic mass of 12 AMU or 12 atomic mass units. However, Carbon atoms have an atomic mass of 13 AMU, consisting of 7 neutrons instead of 6 neutrons. So the only thing that all atoms of the same element have in common is the amount of protons.

7 0

3 years ago

Please help me with my regents practice :((

BlackZzzverrR [31]

Answer: 3 & 4

Explanation:

8 0

3 years ago

What is the difference between 0.50 mol HCl and 0.50 M HCl?

iVinArrow [24]

Answer:

Here you go

Explanation:

6 0

3 years ago

NEED ASAP WILL MARK BRAINLIEST ON TIMER

vladimir1956 [14]

Answer:

The answer is 2.660 mol/l

Explanation:

Given: n= 0.0665, v= 25.00ml

Required: C

C (molarity)= n (of solute)/ v (of solvent) [ standard unit: mol/l]

First convert volume of solvent in its standard unit, i.e. litres(L)

v= 25.00ml/1000= 0.02500L

C = 0.0665 mol / 0.02500 L= 2.660 mL (In proper significant digits i.e. 4 sigdigs)

Therefore, The molarity of the sulfuric acid is 2.660 mol/L :)

3 0

3 years ago

Element

Katyanochek1 [597]

Answer:

the two elements are in the same period, with element R the first element in the period and element Q the last element

8 0

3 years ago