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3 years ago

How many acidic H+ ion is given by H3BO3 in aqueous solution?? ...?

1 answer:

7 0

Boric acid, H3BO3, in aqueous solution would only give out one H+ ion. As it is also produce OH ion and by hydrolysis it produces one proton. <span>All the boron compounds (BX3) are having only 6 valence electrons in it and should follow the octet rule by taking another electron.</span>

B(OH)3 + 2 H2O → B(OH)4− + H3O

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Which of the following factors would reduce the yield of a reaction?

NikAS [45]

The products being more stable than the reactants is the factor which would reduce the yield of a reaction and is denoted as option B under standard conditions.

<h3>What is a Chemical reaction?</h3>

This is the process in which one or more substances which are referred to as reactants are converted into new substances which we call the products.

A chemical reaction involves atoms exhibiting different bond formation so as to ensure they acquire an octet configuration and promotes proper stability of the products.

When the products are more stable than the reactants it means it is unable to form other products thereby decreasing the yield which is why it was chosen as the most appropriate choice.

Read more about Chemical reaction here brainly.com/question/11231920

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3 0

2 years ago

For the complete combustion of 47 g of gasoline (octane, C8H18) , the mass of oxygen consumed is

aleksklad [387]

Answer: d) 164.9 g

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$ $\text{Moles of octane}=\frac{47g}{114g/mol}=0.412moles$

The balanced chemical reaction is:

$2C_8H_{18}(l)+25O_2(g)\rightarrow 16CO_2(g)+18H_2O(g)$

According to stoichiometry :

2 moles of $C_8H_{18}$ require = 25 moles of $O_2$

Thus 0.412 moles of $C_8H_{18}$ will require= $\frac{25}{2}\times 0.412=5.15moles$ of $O_2$

Mass of $O_2=moles\times {\text {Molar mass}}=5.15moles\times 32g/mol=164.9g$

Thus 164.9 g of oxygen is consumed.

4 0

3 years ago

How might the structure of an atom be modeled

Sergio [31]

Answer:

you can explore the structure of atoms as you add protons, neutrons, or electrons to a model and the name of the element you have created

Explanation:

8 0

3 years ago

What is another term for a responding variable

Burka [1]

There are different types of variables in experiments. The manipulated variable is the one you change. The controlled variable is the one you control. The responding variable is the variable that changes as you change the manipulated variable, or the one you are expecting to change.

5 0

3 years ago

The electrolysis of water forms H2 and O2. 2H2O 2H2 + O2 What is the percent yield of O2 if 10.2 g of O2 is produced from the de

BigorU [14]

<u>Answer:</u> The percent yield of oxygen gas is 67.53 %.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)