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3 years ago

How would the images change for a weak acid solution of the same concentration?

1 answer:

8 0

Answer: Strong acids disassociate more compared to weak acids. Since there are more ions, due to more disassociation, there are more ions for electrons to flow through.

Explanation:

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The rate of a hypothetical reaction involving L and M is found to double when the concentration of L is doubled and to increase

Semmy [17]

Answer: $Rate=k[L]^1[M]^2$

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

$L+M\rightarrow products$

$Rate=k[L]^x[M]^y$ (1)

k= rate constant

x = order with respect to L

y = order with respect to M

n =( x+y)= Total order

a) If [L] is doubled, the reaction rate will increase by a factor of 2:

$2\times Rate=k[2L]^x[M]^y$ (2)

b) If [M] is doubled, the reaction rate will increase by a factor of 4:

$4\times Rate=k[L]^x[2M]^y$ (3)

Dividing 2 by 1:

$\frac{2\times Rate}{Rate}=\frac{k[2L]^x[M]^y}{k[L]^x[M]^y}$

$2=2^x$

$x=1$

Dividing 3 by 1

$\frac{4\times Rate}{Rate}=\frac{k[L]^x[2M]^y}{k[L]^x[M]^y}$

$4=2^y$

$2^2=2^y$

$y=2$

Thus rate law is: $k[L]^1[M]^2$

4 0

4 years ago

What is Rubisco and its relationship to photosynthesis?

xenn [34]

Rubisco is a super important enzyme in plants that first captures CO2 to begin the process of the Calvin cycle. It's the most important enzyme by far because it starts the entire process of Carbon Fixation.

8 0

4 years ago

Helpppp helpppp plsssss

Sedbober [7]

$\Large \text{1)}$

$\textbf{Use the formula and substitute the values}$

$\displaystyle 0.3\ mol/L = \frac{n \ mol}{10 \times 10^{-3}\ L}$

$\textbf{Solve for the number of moles}$

$n = 0.003\ mol$

$\textbf{Calculate final volume }$

$40+10=50\ mL$

$\textbf{Number of moles remains same. Solve for concentration}$

$\displaystyle C=\frac{0.003\ mol}{50 \times 10^{-3}\ L} =0.06\ mol/L$

$\Large \text{2)}$

$\displaystyle DF=\frac{V_f}{V_i}$

$\displaystyle DF=\frac{50}{10}=5$

3 0

3 years ago

30 POINTS! PLEASE HELP

hammer [34]

THURSDAY, Aug. 15 (HealthDay News) -- Brain scans show no evidence that people are predominately right- or left-brained, researchers report.

The new findings challenge the widely held belief that people use one side of their brain more than the other, and that this influences their personality traits. For example, left-brained people are said to be logical and detail-oriented, while right-brained people are creative and thoughtful.

For the study, University of Utah neuroscientists analyzed brain scans from more than 1,000 people, aged 7 to 29. The researchers examined thousands of brain regions for indications that people are more likely to use either the right or left side of the brain, but found no signs that this was the case.

The study was published in the Aug. 14 online edition of the journal PLoS One.

"It's absolutely true that some brain functions occur in one or the other side of the brain. Language tends to be on the left, attention more on the right. But people don't tend to have a stronger left- or right-sided brain network. It seems to be determined more connection by connection," lead author Dr. Jeff Anderson said in a University of Utah Health Sciences news release.

These are groundbreaking findings that may change the way people think about the right-brain versus left-brain theory, said study co-author Jared Nielsen, a graduate student in neuroscience.

"Everyone should understand the personality types associated with the terminology 'left-brained' and 'right-brained' and how they relate to him or her personally; however, we just don't see patterns where the whole left-brain network is more connected or the whole right-brain network is more connected in some people," Nielsen said in the news release.

"It may be that personality types have nothing to do with one hemisphere being more active, stronger or more connected," he said.

WebMD News from HealthDay

3 0

3 years ago

What is the molarity of a solution of K3PO4 made by mixing 0.26 mol of potassium

statuscvo [17]

Given :

0.26 mole of $K_3PO_4$ and 0.35 L of water.

To Find :

The molarity of a solution of $K_3PO_4$ made by mixing 0.26 mole of potassium

phosphate with water up to 0.35 L .

Solution :

We know, molarity is given by :

$M = \dfrac{number \ of \ moles }{Volume \ in \ Liter}\\\\M = \dfrac{0.26}{0.35}\ M\\\\M = 0.743 \ M$

Therefore, the molarity of $K_3PO_4$ solution is 0.743 M.

4 0

3 years ago