2 years ago

Calculate the molecular mass of Co(NO3)2with steps please

Chemistry

1 answer:

Nana76 [90]2 years ago

4 0

Answer:

$182.933~ \text{g mol}^{-1}$

Explanation:

$\text{Atomic mass of cobalt(Co)} = 58.933~u\\\\\text{Atomic mass of nitrogen(N)}= 14~u\\\\\text{Atomic mass of oxygen(O)}=16~u\\\\\text{Molar mass of}~ \text{Co}\left(\text{NO}_3} \right)_2 = 58.933 + 2(14 +16 \times 3)~ \text{g mol}^{-1}\\\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=(58.933 + 124)~ \text{g mol}^{-1}\\\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=182.94~ \text{g mol}^{-1}$

You might be interested in

What can u say about the sizes of all the atoms in a piece of carbon

vlada-n [284]

Answer:

all atoms must have 6 protons to be a carbon atom

Explanation:

brainliest?

4 0

2 years ago

Gloria is making a model of an atom. She uses three different colors to represent the three basic particles that make up the ato

xz_007 [3.2K]

Answer:

protons and neutrons

Explanation:

The nucleus of the atom contains protons and neutrons. The electrons of the atom orbit the nucleus.

8 0

3 years ago

Which formula contains two non- metals? BaO NaBr KI Si O2

Yakvenalex [24]

SiO2 is the only possible choice because the other formulas contain metals. how do we know this? because the other formulas contain elements located on the left of the “staircase” on the periodic table that separates metals from non-metals.

6 0

3 years ago

A/an bonds allows metals to conduct electricity

dalvyx [7]

If I understand you correctly, you should fill the gap and decide which kind og bonds allows metals to conduct electricity. If so, without any doubt I can say that the metalic bonds allows metals to conduct electricity. I'm pretty sure it will help you! Regards.

5 0

3 years ago

How many moles of argon are in 24.3 g of argon

maksim [4K]

Answer:

0.607mol

Explanation:

n(AR) = mass / molar máss

= 24.3 /40

=0.607

3 0

3 years ago

Read 2 more answers