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4 years ago

Why shouldn’t we add water to sulfuric acid?

Chemistry

1 answer:

Kamila [148]4 years ago

5 0

Answer:

If you add water to sulfuric acid, it can boil and spit and you may get a nasty acid burn.

Explanation:

You might be interested in

Cream of tartar has a pH that is (acidic or basic)

son4ous [18]

It is acidic because it has the Carboxylic Acid.

5 0

3 years ago

Consider the reaction pathway graph below.

LenaWriter [7]

Answer:

This is an endothermic reaction with a positive ΔHrxn.

Explanation:

From the question given above, we can see clearly that the energy of the product (Hp) is greater than the energy of the reactant (Hr). This simply means that the reaction is endothermic as the enthalpy change (ΔH) for the reaction will be positive.

Enthalpy change (ΔH) = Heat of product (Hp) – Heat of reactant (Hr)

ΔH = Hp – Hr = positive

NOTE: A reaction with positive enthalphy change (ΔH) is termed endothermic reaction.

8 0

3 years ago

What is the formula mass for carbon dioxide?

scZoUnD [109]

The molecular mass of the compound CO2 is calculate by simply taking the number of atoms of each element and multiplying it by the molar mass of the element on the periodic table.

C = 1 • 12.0 g/mol
O2 = 2 • 16.0 g/mol = 32.0 g/mol
CO2 = 12.0 + 32.0 = 44.0 g/mol.

The formula mass of CO2 is 44.0 g/mol.

3 0

3 years ago

if 315mL of 1.25 M iron(ii) sulfate is added to 405mL of.95 M ammonium phosphate, what is the limiting reactant

vladimir2022 [97]

Answer:

FeSO₄ is the Limiting Reactant

Explanation:

3FeSO₄(aq) + 2(NH₄)₃PO₄ (aq) => 3(NH₄)₃PO₄(aq) + Fe₃(PO₄)(s)

315ml(1.25M)FeSO₄ + 405ml(0.95M)(NH₄)₃PO₄

=> 0.315L(1.25M)FeSO₄ + 0.405ml(0.95M)(NH₄)PO₄

=> 0.394mole FeSO₄ + 0.385mole (NH₄)PO₄

Divide by respective coefficient => the smaller value is the Limiting Reactant.

=> 0.394/3 = 0.131 => 0.385/2 = 0.193

Smaller value is associated with FeSO₄

∴the limiting reactant is FeSO₄.

Summery:

1. convert reactant quantities to moles

2. divide reactants by respective coefficients of balanced equation

3. note smaller value after dividing by respective coefficient => Limiting Reactant.

7 0

3 years ago

Pure iron, Fe , can be produced from an ore called hematite, Fe2O3 , by reaction with carbon at high temperatures. 2Fe2O3+3C⟶4Fe

Sophie [7]

70 tons of hematite (Fe₂O₃) is needed to produce 49 tons of iron (Fe).

We'll begin by calculating the tons of hematite (Fe₂O₃) that reacted and the tons of Fe produced from the balanced equation. This is illustrated below:

2Fe₂O₃ + 3C —> 4Fe + 3CO₂

Molar mass of Fe₂O₃ = (56×2) + (16×3) = 160 g/mol

Mass of Fe₂O₃ from the balanced equation = 2 × 160 = 320 g

Divide by 907185 to express in ton

320 / 907185 = 0.000353 ton

Molar mass of Fe = 56 g/mol

Mass of Fe from the balanced equation = 56 × 4 = 224 g

Divide by 907185 to express in ton

224 / 907185 = 0.000247 ton

<h3>SUMMARY </h3>

From the balanced equation above,

0.000353 ton of Fe₂O₃ reacted to produce 0.000247 ton of Fe.

Finally, we shall determine the tons of hematite (Fe₂O₃) needed to produce 49 tons of Fe. This can be obtained as follow:

From the balanced equation above,

0.000353 ton of Fe₂O₃ reacted to produce 0.000247 ton of Fe.

Therefore,

X ton of Fe₂O₃ will react to produce 49 tons of Fe i.e

X ton of Fe₂O₃ = $\frac{0.000353 * 49}{0.000247} \\\\$

X ton of Fe₂O₃ = 70 tons

Thus, 70 tons of hematite (Fe₂O₃) is needed to produce 49 tons of Fe.

Learn more: brainly.com/question/15343472

5 0

3 years ago