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3 years ago

Which substance is a binary acid?

Chemistry

2 answers:

Reil [10]3 years ago

5 0

Answer:

phosphoric

Explanation:

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IceJOKER [234]3 years ago

4 0

Answer:

hydrochloric acid is a substance that is a binary acid .

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When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reacti

babunello [35]

Answer:

For A: The mass of carbon dioxide produced is 0.00303 grams.

For B: The mass of water produced is 0.0025 grams.

For C: The mass of oxygen gas produced is 0.0044 grams.

Explanation:

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

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

For methane:

Given mass of methane = $1.10\times 10^{-3}g$

Molar mass of methane = 16 g/mol

Putting values in equation 1, we get:

$\text{Moles of methane}=\frac{1.10\times 10^{-3}g}{16g/mol}=6.875\times 10^{-5}mol$

The chemical equation for the combustion of methane follows:

$CH_4+2O_2\rightarrow CO_2+2H_2O$

For A:

By Stoichiometry of the reaction:

1 mole of methane produces 1 mole of carbon dioxide

So, $6.875\times 10^{-5}mol$ of methane will produce = $\frac{1}{1}\times 6.875\times 10^{-5}=6.875\times 10^{-5}mol$ of carbon dioxide

Now, calculating the mass of carbon dioxide from equation 1, we get:

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = $6.875\times 10^{-5}$ moles

Putting values in equation 1, we get:

$6.875\times 10^{-5}mol=\frac{\text{Mass of carbon dioxide}}{44g/mol}\\\\\text{Mass of carbon dioxide}=(6.875\times 10^{-5}mol\times 44g/mol)=0.00303g$

Hence, the mass of carbon dioxide produced is 0.00303 grams.

For B:

By Stoichiometry of the reaction:

1 mole of methane produces 2 moles of water

So, $6.875\times 10^{-5}mol$ of methane will produce = $\frac{2}{1}\times 6.875\times 10^{-5}=1.375\times 10^{-4}mol$ of water

Now, calculating the mass of water from equation 1, we get:

Molar mass of water = 18 g/mol

Moles of water = $1.375\times 10^{-4}$ moles

Putting values in equation 1, we get:

$1.375\times 10^{-4}mol=\frac{\text{Mass of water}}{18g/mol}\\\\\text{Mass of water}=(1.375\times 10^{-4}mol\times 18g/mol)=0.0025g$

Hence, the mass of water produced is 0.0025 grams.

For C:

By Stoichiometry of the reaction:

1 mole of methane reacts with 2 moles of oxygen gas

So, $6.875\times 10^{-5}mol$ of methane will react with = $\frac{2}{1}\times 6.875\times 10^{-5}=1.375\times 10^{-4}mol$ of oxygen gas

Now, calculating the mass of oxygen gas from equation 1, we get:

Molar mass of oxygen gas = 32 g/mol

Moles of oxygen gas = $1.375\times 10^{-4}$ moles

Putting values in equation 1, we get:

$1.375\times 10^{-4}mol=\frac{\text{Mass of oxygen gas}}{32g/mol}\\\\\text{Mass of oxygen gas}=(1.375\times 10^{-4}mol\times 32g/mol)=0.0044g$

Hence, the mass of oxygen gas produced is 0.0044 grams.

3 0

4 years ago

A molecule, Z, contains two atoms of oxygen, six atoms of hydrogen and three atoms of carbon. What is the formula of Z?

kondaur [170]

Answer:

C3H6O3

Explanation:

Hydroxyacetone

4 0

3 years ago

Positive and Negative ions attract each-other and form chemical __________

e-lub [12.9K]

Answer:

Changes

Explanation:

When positive and negative ions attract each other it fors a negative chemical changes

7 0

3 years ago

Urgent plzz help meeee thx I HAVE EXAMEEE

USPshnik [31]

Answer: $2Ag^{+}(aq)+CO_3^{2-}(aq)\rightarrow Ag_2CO_3(s)$

Explanation:

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

The given chemical equation is:

$2AgF(aq)+Na_2CO_3(aq)\rightarrow Ag_2CO_3(s)+2NaF(aq)$