Use the periodic table entry below to answer the following question. What is the atomic mass of the element cobalt (Co)?

Chemistry

2 answers:

Ilia_Sergeevich [38]2 years ago

8 0

I want to say 59 atomic mass units<span> is beta decay, but I'm just guessing from previous Chem. class.</span>

Maslowich2 years ago

8 0

58.9 is the atomic mass

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The name given to the substance formed when a liquid is miscible in another liquid.

m_a_m_a [10]

Answer:

Solute

Explanation:

5 0

3 years ago

If a sample contains 21.2g N how many moles of N does it contain

tigry1 [53]

Hey there!

The molar mass of nitrogen is 14.007.

Convert grams to moles:

21.2 ÷ 14.007 = 1.51

The sample containing 21.2g of nitrogen contains 1.51 moles of nitrogen.

Hope this helps!

8 0

3 years ago

How many grams of oxygen are there in 45.7 grams of Ba(NO2),?

Flauer [41]

I’m assuming you mean barium nitrite, Ba(NO2)2.

First convert grams of Ba(NO2)2 to moles using the molar mass of Ba(NO2)2. Then use the mole ratio of 4 moles of oxygen per 1 mole of Ba(NO2)2 to convert to moles of oxygen. Then use the molar mass of oxygen to convert to grams of oxygen.

45.7 g Ba(NO2)2 • 1 mol Ba(NO2)2 / 229.35 g Ba(NO2)2 • 4 mol O / 1 mol Ba(NO2)2 • 16.0 g O / 1 mol O = 12.8 g oxygen

4 0

2 years ago

When the equal molar amounts of of both the acid and the base were reacts, what happened in the reaction?

Advocard [28]

It is going to be reaction of neutralization, and water and salt will be formed. If acid and base are strong, the reaction of the solution should become neutral.

3 0

3 years ago

According to Wookieepedia, Kylo Ren stands 1.89 m tall and his mass is 89 kg. Calculate his earth-weight in lbm. (2 pts) a. b. A

harina [27]

Answer:

a) 6312.12 lbm

b) D = 11.843 inch

Explanation:

GIVEN DATA:

Height of person = 1.89 m = 74.41 inch

mass of person m = 89 kg = 196.211 lbm

a) person earth weight =mg