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3 years ago

The limiting reactants appeared to be _ Because_____

Chemistry

1 answer:

Igoryamba3 years ago

8 0

Answer:

The limiting reagents seemed to be those that were consumed first .

Because when this reagent is consumed, the reaction stops. The quantity of this determines the total quantity of the product formed.

Explanation:

A limiting reagent is one that is consumed in its entirety. In this way, it delimits the amount of product that can be formed.

Take the case of two substances that interact and produce a chemical reaction. If one of the substances runs out as it is consumed during the process, the reaction will stop. The reagent consumed acts as a limiting reagent, that is, it limits the possibility of the reaction proceeding, and therefore it also limits the amount of the product generated by the reaction.

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A patient cholesterol level in blood measures 149 mg/dL. What is the patients cholesterol level in grams per liter.

jonny [76]

Answer:

Cholesterol is a fat used by the body that is produced by the body and that also comes from animal-based foods. Important numbers to know are total cholesterol, HDL or good cholesterol, LDL or bad cholesterol, and triglycerides.

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3 0

3 years ago

Consider the malate dehydrogenase reaction from the citric acid cycle. Given the listed concentrations, calculate the free energ

Ahat [919]

<u>Answer:</u> The Gibbs free energy of the reaction is 21.32 kJ/mol

<u>Explanation:</u>

The chemical equation follows:

$\text{Malate }+NAD^+\rightleftharpoons \text{Oxaloacetate }+NADH$

The equation used to Gibbs free energy of the reaction follows:

$\Delta G=\Delta G^o+RT\ln K_{eq}$

where,

$\Delta G$ = free energy of the reaction

$\Delta G^o$ = standard Gibbs free energy = 29.7 kJ/mol = 29700 J/mol (Conversion factor: 1 kJ = 1000 J)

R = Gas constant = 8.314J/K mol

T = Temperature = $37^oC=[273+37]K=310K$

$K_{eq}$ = Ratio of concentration of products and reactants = $\frac{\text{[Oxaloacetate]}[NADH]}{\text{[Malate]}[NAD^+]}$

$\text{[Oxaloacetate]}=0.130mM$

$[NADH]=2.0\times 10^2mM$

$\text{[Malate]}=1.37mM$

$[NAD^+]=490mM$

Putting values in above expression, we get:

$\Delta G=29700J/mol+(8.314J/K.mol\times 310K\times \ln (\frac{0.130\times 2.0\times 10^2}{1.37\times 490}))\\\\\Delta G=21320.7J/mol=21.32kJ/mol$

Hence, the Gibbs free energy of the reaction is 21.32 kJ/mol

4 0

3 years ago

the difference between these two measurements: 60 m and 60.00 m How many sig figs does each contain? Clearly explain which digit

tensa zangetsu [6.8K]

This problem is providing two measurements, 60 m and 60.00 m and asks for the difference in the significant digits, accuracy, uncertainty, whether they are the same or not and how they differ.

<h3>Significant figures:</h3>

In chemistry, the use of significant figures is crucial, because they define the most appropriate way to report a measurement. Thus, we can say that the more decimals a measurement has, the more accurate and the less uncertain it is. Also, if no decimal places are present, tracking zeros are not significant.

In such a way, one can conclude that 60 m has just one significant figure (0 does not count) whereas 60.00 m has four (there is a decimal making all zeros significant), 60.00 m is more accurate as more decimal places are reported. On the other hand 60 m is the more uncertain as less decimals contribute to its accuracy.

In addition, we say they can be the same measurement, as long as they represent the same idea, sixty meters, the thing is 60.00 m is more accurate yet they refer to the same measurement.

Learn more about significant figures: brainly.com/question/11904364

4 0

3 years ago

The formation of tert-butanol is described by the following chemical equation: Suppose a two-step mechanism is proposed for this

const2013 [10]

Answer:

(CH3)3C^+ + OH^- --------> (CH3)3COH

Explanation:

This reaction has to do with SN1 reaction of alkyl halides. Here tert-butanol is formed from tert-butyl bromide.

The first step in the reaction is the formation of a carbocation. This is a unimolecular reaction. The rate of reaction depends on the concentration of the alkyl halide. This is a slow step and thus the rate determining step in the mechanism.

(CH3)3CBr -------> (CH3)3C^+ + Br^-

The second step is a fast step and it completes the reaction mechanism. It is a bimolecular reaction as follows;

(CH3)3C^+ + OH^- --------> (CH3)3COH

5 0

3 years ago

What type of reaction is occurring when an acid and a base are mixed together?

Law Incorporation [45]

Answer:

It is a neutralization reaction

Explanation:

When an acid and a base are mixed together the reaction occurring is called a Neutralization. It receives that name because the protons ( $H^+$ ) of the acid react with the hydroxil ( $OH^-$ ) of the base, canceling their acid and basic power, respectively.

Given a generic acid and a generic base:

$HA + BOH \longrightarrow A^- + B^+ + H^+ + OH^-$

$H^+ + OH^- \longrightarrow H_2O$

5 0

3 years ago

The limiting reactants appeared to be _______ Because___________

The limiting reactants appeared to be _ Because_____