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4 years ago

The amount of carbon dioxide released into the atmosphere is balanced by the release of:

Chemistry

2 answers:

TEA [102]4 years ago

8 0

oxygen is the correct one

Charra [1.4K]4 years ago

5 0

The correct answer is oxygen.

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g 10.00 mL of phosphoric acid (H3PO4) are titrated with 0.1000 M sodium hydroxide. 15.00 mL of the sodium hydroxide solution are

aliya0001 [1]

Answer: The molarity of phosphoric acid is 0.05 M

Explanation:

A neutralization reaction is defined as the reaction in which an acid reacts with a base to form a salt and water molecule.

At equivalence, moles of acid becomes equal to the moles of base. The equation for the neutralization follows:

$n_1M_1V_1=n_2M_2V_2$ ........(1)

where,

$n_1, M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid that is $H_3PO_4$

$n_2, M_2\text{ and }V_2$ are the n-factor, molarity and volume of the base that is NaOH

Given values:

$n_1=3\\M_1=?M\\V_1=10.00mL\\n_2=1\\M_2=0.1000M\\V_2=15.00mL$

Plugging values in equation 1:

$3\times M_1\times 10.00=1\times 0.1000\times 15.00\\\\M_1=\frac{1\times 0.1000\times 15.00}{3\times 10.00}\\\\M_1=0.05M$

Hence, the molarity of phosphoric acid is 0.05 M

6 0

3 years ago

The combination of a carbonyl group and a hydroxyl group on the same carbon atom is called a ________ group.

alukav5142 [94]

Answer:

d. carboxyl

Explanation:

The presence of carbonyl group (>C=O)) and a hydroxyl group ( (−OH) on the same carbon atom is called a "carboxyl" group. A carboxyl group is represented as COOH and acts as the functional group part of carboxylic acids.

For example:

Formic acid or Methanoic acid (H-COOH)
Butanoic acid (C3H7-COOH)

Hence, the correct option is "d. carboxyl ".

5 0

3 years ago

Which increases the rate of a chemical reaction?

oee [108]

I believe the correct answer from the choices listed above is option A. It is a catalyst that increases the rate of a chemical reaction. It provides another pathway for the reaction in order for it to hasten the speed of the reaction. Hope this answers the question.

3 0

4 years ago

A sample of nitrogen gas contains 9.46x10^23 atoms of nitrogen. How much nitrogen is expressed in grams? round your answer to th

Alexxx [7]

No of. atoms=9.46×10^23

We know

$\boxed{\star{\sf No\;of\:atoms=No\:of\: moles\times Avagadro's\: number}}$

$\\ \rm\Rrightarrow No\:of\;moles=\dfrac{No\:of\:atoms}{Avagadro's\:no}$

$\\ \rm\Rrightarrow No\:of\:moles =\dfrac{9.46\times 10^{23}}{6.022\times 10^{23}}$

$\\ \rm\Rrightarrow No\:of\:moles=1.6mol$

Again

$\boxed{\star{\sf Mass=Molar\:mass\times No\:of\:moles}}$

$\\ \rm\Rrightarrow Mass=1.6(14)$

$\\ \rm\Rrightarrow Mass=22.4g$

6 0

3 years ago

Why+is+it+that+nitrogen+is+often+a+limiting+plant+nutrient,+despite+the+fact+that+the+atmosphere+is+80%+nitrogen+gas+(n2)?

Nataly [62]

Why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas because plant can not fix nitrogen.

What is nitrogen fixation?

Nitrogen fixation is a chemical process that converts molecular nitrogen (N2) in the air, which has a strong triple covalent bond, into ammonia (NH3) or related nitrogenous chemicals.

With the exception of a few microbes, atmospheric nitrogen is molecular dinitrogen, a largely nonreactive chemical. Diazotrophy, or biological nitrogen fixation, is an important microbially driven process that transforms dinitrogen (N2) gas to ammonia (NH3) via the nitrogenase protein complex.

To learn more about nitrogen fixation click the given link

brainly.com/question/19972090

#SPJ4

7 0

1 year ago