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zepelin [54]
3 years ago
14

In the chemical formula 3nh4, how many total atoms of hydrogen (h) are there? 1 4 12

Chemistry
1 answer:
Delvig [45]3 years ago
8 0
There is a total of 12 hydrogen atoms
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Based on reactivity, which of the following elements can replace aluminum (Al) in a compound during a single replacement reactio
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Isotopes called what are used to diagnose disease and to study environmental conditions
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If an equivalent (eq) is defined as a mole of charge, what is the concentration of ca2 in blood plasma in eq if its concentratio
diamong [38]

The concentration of ca 2 in blood plasma in equivalent if its concentration is 0.0080.

Concentration means the amount of or parts in terms of the alternative components. For acid–base reactions, the equivalent weight of an acid or base is the mass which materials or reacts with one mole of hydrogen

In chemistry, equal weight (additionally known as gram equal is the mass of 1 equivalent, that is the mass of a given substance as a way to integrate with or displace a fixed amount of any other substance. The equivalent weight of an detail is the mass which combines with or displaces 1.008 gram of hydrogen or eight. Zero grams of oxygen or 35.five grams of chlorine. those values correspond to the atomic weight divided through the usual valence for oxygen as example that is sixteen.

Charge on one Ca ​​​​2+  ion = + 2 .

Concentration of calcium ion = 0.0040M

⇒ Concentration of Ca ​​​​​2 +  in blood plasma = 0.0040 × 2

=  0.0080 equivalent  Ca ​​​​​2                  answer

Learn more about concentration here :- brainly.com/question/14469428

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4 0
2 years ago
Alex cut a pizza into 8 equal slices. He removed 2 of the slices of pizza. What is the measure of the angle made by the missing
Firlakuza [10]

Answer: 90 degrees.

Explanation:

4 0
3 years ago
Determine the moles of chlorine needed to react with 38.9 of iron (III) chloride.
lys-0071 [83]

Answer: 0.360 moles

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}

\text{Moles of} FeCl_3=\frac{38.9g}{162.2g/mol}=0.240moles

The balanced chemical reaction is:

2Fe+3Cl_2\rightarrow 2FeCl_3  

According to stoichiometry :

2 moles of require = 3 moles of

Thus 0.240 moles of FeCl_3 will require=\frac{3}{2}\times 0.240=0.360moles of Cl_2

Thus 0.360 moles of chlorine needed to react to produce 38.9 of iron (III) chloride.

6 0
3 years ago
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