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3 years ago

Would 0.12g/cm^3 float in water?

Chemistry

1 answer:

Leno4ka [110]3 years ago

3 0

Yes that would float in water

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Most polyatomic ions will only contain

solniwko [45]

Explanation:

oxygen and are negatively charged anions because the oxygen atoms attract electrons. Ammonium is one of the few positively charged polyatomic ions or cations and doesn't contain oxygen.

4 0

3 years ago

Read 2 more answers

A student was asked to determine the concentration of ammonia, a volatile substance used in the clinical setting as a respiretor

UNO [17]

This question is describing two chemical equations whereby the concentration of ammonia has to be determined. The first reaction is between 25.00 mL of ammonia and 50.00 mL of 0.100-M HCl whose excess was neutralized with 21.50 mL of 0.050-M Na₂CO₃ and thus, the concentration ammonia in the cloudy solution was determined as 0.114 M.

First of all we need to go over the titration of the excess HCl with Na₂CO₃ by writing the chemical equation it takes place when they react:

$2HCl+Na_2CO_3\rightarrow 2NaCl+CO_2+H_2O$

Whereas the mole ratio of HCl to Na₂CO₃ is 2:1 and the volume of the HCl leftover is determined as follows:

$V_{HCl}^{leftover}=\frac{2*0.050M*21.50mL}{0.100M} =21.5mL$

Next, we infer that the consumed volume of HCl by the ammonia solution was:

$V_{HCl}^{consumed}=50.00mL-21.50mL=28.5 mL$

Then, we write the chemical equation that takes place between ammonia and HCl:

$HCl+NH_3\rightarrow NH_4Cl$

Whereas the mole ratio is now 1:1, which means that the concentration of ammonia was:

$M_{NH_3}=\frac{28.5mL*0.100M}{25.00mL}\\\\ M_{NH_3}=0.114M$

Learn more:

(Titration) brainly.com/question/15687419
(Titration) brainly.com/question/25328286

8 0

2 years ago

How doi find half years

IrinaVladis [17]

Can you post the question

5 0

3 years ago

Answer Questions 1–6 based on Figure 1.

Tresset [83]

Answer:

1. 18 protons

2. Argon

3. 18 electrons

4. 8 electron

5. Neutral Atom

Explanation:

count the number of electrons on the shells, number of electrons is equal to the number of protons for a neutral Atom.

since the number of proton is 18 then the element is Argon which has an atomic number of 16.

3 0

2 years ago

Select the correct answer.

mariarad [96]

Answer:

A. How does changing the amount of water affect the growth of corn?

Explanation:

To test this question, all you have to do is buy corn, and keep them all in the same area with the same amount of sunlight, temperature, etc, and only change the amount of water each plant gets.

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4 years ago