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Karo-lina-s [1.5K]
2 years ago
13

How does Fluoroanimonic acid melt things?

Chemistry
1 answer:
Tomtit [17]2 years ago
4 0

Answer:s the temperature is increased, fluoroantimonic acid decomposes and generates hydrogen fluoride gas (hydrofluoric acid). ... 1  Fluoroantimonic acid has a H0 (Hammett acidity function) value of -31.3. Dissolves glass and many other materials and protonates nearly all organic compounds (such as everything in your body)

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A flask is filled with 50.0 ml of 0.15 M HCl acid. Exactly 0.054 grams of CaCo3 are placed in the acid,
ira [324]

Answer:

See explanation

Explanation:

2HCl(aq) + CaCO3(aq) ------->CaCl2(aq) + CO2(g) + H2O(l)

Number of moles of acid present = 50/1000 * 0.15 = 0.0075 moles

Number of moles of calcium carbonate = 0.054g/100 g/mol = 0.00054 moles

2 moles of HCl reacts with 1 mole of calcium carbonate

x moles of HCl reacts with 0.00054 moles of calcium carbonate

x = 2 *  0.00054/1

x = 0.00108 moles of HCl

Amount of acid left = 0.0075 moles - 0.0075 moles = 0.00642 moles

Reaction of HCl and NaOH

HCl(aq) + NaOH(aq) ------> NaCl(aq) + H2O(l)

Since the reaction is in the mole ratio of 1:1

0.00642 moles of HCl is neutralized by 0.00642 moles of NaOH

8 0
3 years ago
How many grams of CO are needed to react with an excess of Fe2O3 to produce (210.3 g Fe) 209.7 g Fe? Show your work.
Fed [463]

Explanation:

3CO(g)+Fe_2O_3(s)\rightarrow 2Fe(s)+3CO_2(g)

1)Mass of CO when 210.3 g of Fe produced.

Number of moles of Fe in 210.3 g=

\frac{\text{Given mass of Fe}}{\text{Molar mass of Fe}}

=\frac{210.3}{55.84 g/mol}=3.76 mol

According to reaction, 2 moles of Fe are obtained from 3 moles of CO, then 3.76 moles of Fe will be obtained from : \frac{3}{2}\times 3.76 moles of CO that is 5.64 moles.

Mass of CO in 5.64 moles =

\text{Number of moles}\times \text{molar mass of CO}=5.46\times 28 g/mol=157.92 g

2)Mass of CO when 209.7 g of Fe produced.

Number of moles of Fe in 209.7 g=

\frac{\text{Given mass of Fe}}{\text{Molar mass of Fe}}

=\frac{209.7}{55.84 g/mol}=3.75 mol

According to reaction, 2 moles of Fe are obtained from 3 moles of CO, then 3.75 moles of Fe will be obtained from : \frac{3}{2}\times 3.75 moles of CO that is 5.625 moles.

Mass of CO in 5.625 moles =

\text{Number of moles}\times \text{molar mass of CO}=5.625\times 28 g/mol=157.5 g

4 0
3 years ago
Read 2 more answers
When the temperature of a sample of neon gas increases, what else increases? Distance between the atoms Kinetic energy of the at
Allushta [10]

Answer: Kinetic Energy of the atoms also increases.

Explanation: We are given that the temperature of the gas increases.

Relation between kinetic energy and temperature follows:

K.E._({avg})=\frac{3RT}{2N_A}

where, K = Average Kinetic energy

R = Gas constant

T = Temperature

N_A = Avogadro's number

As seen from the relation above, the Kinetic energy of the gas is directly proportional to the temperature, hence as the temperature increases, kinetic energy of the atom also increases.

4 0
3 years ago
Which is an electronic tool that can be used to improve science?
Vanyuwa [196]
The answer is probeware
6 0
3 years ago
Read 2 more answers
Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass?
pentagon [3]

Answer:

Henry Moseley

Explanation:

Dmitry Mendeleef and Lothar Meyer proposed a periodic table based on the atomic mass.

They stated a periodic law expressed as "chemical properties of elements are a periodic function of their atomic weights".

But, Henry Moseley in 1900s re-stated periodic law by changing the basis of the law from atomic weight to atomic number.

The present periodic law is stated as "the properties of elements are a periodic function of their atomic number".

6 0
2 years ago
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