The ph of the buffer solution given after 0.750 mol of H⁺ have been added is; 4.34
What is the PH of the Buffer?pKa = -log(Ka) = 4.20
[A⁻] = [NaC₇H₅O₂]
[HA] = [HC₇H₅O₂]
Concentration of NaC₇H₅O₂ in the preferred buffer solution is;
[132.8g/(144.11 g/mol * 300 mol)] * 1000 mL/1 L = 3.07 M
Formula for the PH here is;
pH = pKa + log [A⁻/HA]
Thus;
pH = -log(6.3 x 10⁻⁵) + log [3.07/2.31]
pH = 4.34
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If there is a third-quarter moon on july 2, what is the approximate date of the next full moon? a) july 9th b) july 16th c) july 23rd d) july 30th
If there is a third-quarter moon on July 2, an approximate date for the next full moon is: A. July 9th.
What is a Moon?A Moon can be defined as the natural satellite of planet Earth that shines due to the Sun's reflected light, as it revolves around the Earth from west to east in 29½ days.
The phases of the Moon.In Astronomy, there are four (4) primary Moon phases and these are:
New MoonFirst QuarterFull MoonThird Quarter (Last Quarter)In conclusion, if there is a third-quarter moon on July 2, an approximate date for the next full moon would be July 9th because it takes 29½ days to revolve around the Earth from west to east.
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If two supplementary angles are congruent what is the measure of each
90° because l think each right angle is equal to 90°
Choose a physical feature discussed in this unit. In a paragraph of 125 words, discuss its effect on the sub-sahara's physical and human geography
The physical feature in Sub-sahara chosen in this scenario is the river.
What is Sub-sahara?This is an area found in Africa which has realm of plateaus and basins with four main river systems.
The river allows for more influx of people into the area as a result of the presence of water which can be used for agriculture and other important sources .
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Answer:
A very important feature partly in the Sub-Sahara of Africa is the Great Rift Valley which stretches for about 6000km from Syria to Mozambique is a block faulted valley, 30 to 60 miles wide which represents a rift in the African plate of plate tectonics, similar to the ones under the ocean like the mid-Atlantic ridge. It has fertile soil in it, partly from volcanoes like Mt Kilimanjaro, and also many large lakes like Lake Tanganyika, It provided a rich environment due to the soil and the lakes for example, for the Bantu people in the past, many of which had their kingdoms here. Ancient human remains have been found in its soil by Richard Leakey.
Read these lines from robert frost’s "the road not taken." i shall be telling this with a sigh somewhere ages and ages hence: these lines most support a tone of somber reflection. neutral reflection. wistful reflection. hopeful reflection.
Answer:
neutral reflection.
Explanation:
Answer:
It's B
Explanation:
Which mexican state is a popular tourist destination
Answer:
Oaxaca
Explanation:
Oaxaca de Juárez is one of the most important destinations in Mexico
a student wants to determine whether a certain problem is undecidable. which of the following will demonstrate that the problem is undecidable?
A scenario which demonstrate that the problem is undecidable is when for an instance of the problem, no algorithm written provides a correct YES or NO answer.
What is an algorithm?An algorithm can be defined as a standard formula and procedures with a set of finite steps and instructions that are executed on a computer system, in order to proffer solutions to a specific problem under appropriate conditions.
This ultimately implies that, a scenario which demonstrate that a certain problem is undecidable is when for an instance of the problem, no algorithm can be written by a programmer is capable of providing either a correct YES or NO answer.
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__________ is bordered by two central asian countries. a. the harirud river b. the caspian sea c. the aral sea d. lake balkhash please select the best answer from the choices provided a b c d
Answer: The Aral sea
Explanation: hope this helps! :)
Linear constant and squaring functions are examples of
Answer:
Polynomial functions
Explanation:
I hope this helps.
Linear constant and squaring functions are examples of polynomial functions.
What do you mean by Polynomial functions?Polynomial functions may be characterized as a type of function that significantly involves the utilization of only non-negative integer powers or only positive integer exponents of a variable in equations like the quadratic equation, cubic equation, etc.
These functions are understood by mathematical concepts through which an expression consists of variables and coefficients involving only mathematical operations like addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
Examples of polynomial functions may include linear constants, cubic functions, quadratic and quartic equations, etc.
Therefore, linear constant and squaring functions are examples of polynomial functions.
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Your question seems incomplete. The most probable complete question is as follows:
Linear constant and squaring functions are examples of:
Quadratic functions.Parabola functions.Polynomial functions.Complete the following statements with the best answer. when one is using the standard normal distribution. p(z < 0) = ___________.
In Statistics, when you are is using the standard normal distribution, P(z < 0) = 0.5.
What is a normal distribution?A normal distribution is also referred to as the Gaussian distribution and it can be defined as a probability distribution that is continuous and symmetrical on both sides of the mean, which shows that all data near the mean have a higher frequency than data that are far from the mean.
This ultimately implies that, when you are is using the standard normal distribution, P(z < 0) must be equal to 0.5 because it has a median of zero (0).
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Overall, the style of the passage is best described as conversational conversational digressive digressive cryptic cryptic lyrical lyrical intellectual
It should be noted that the Overall style of the passage is best described as intellectual.
What is meant by Intellectual?Intellectual passage is used in critical thinking as well as research.
Therefore, we can see how the author made the narration and makes use of specific words, and critical thinking which made the work a intellectual one.
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Geometry volume 1 houghton mifflin harcourt answers pdf
The volume of a shape is the amount of space in it
The volume of the assumed shape is 235.5 cm³
How to calculate the volume of a geometric shape?The question is incomplete as the dimensions or the figure is not given
So, I will provide a general solution
Assume the shape is a cylinder, with the following parameters:
Radius, r = 5 cm
Height, h = 3 cm
The volume is:
V = π r² h
This gives
V = (3.14) (5 cm)² (3 cm)
Evaluate the product
V = 235.5 cm³
Hence, the volume of the assumed shape is 235.5 cm³
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Use the mean value theorem to prove the inequality
Answer:
Proving inequalities, you often have to introduce one or more additional terms that fall between the two you're already looking at. This often means taking away or adding something, such that a third term slides in. Always check your textbook for inequalities you're supposed to know and see if any of them seem useful.
Math accelerated chapter 12 volume and surface area
The example of shapes that was studied under the Math accelerated chapter 12 workbook is The volume of the prism is shown as 61.6in³. What is the height of the prism?
What is Math Accelerated Textbook?The Glencoe Math Accelerated is known to be a comprehensive robust text that has been set up to support the teachers teaching skills and styles and also to address the needs of your students.
To solve for the height of the prison. The formula is
V = lwh
V = 61.6
V= 8 x 2.2 x h
H = 61.6/17.6
H= 17.6h/17.6
H = 3.5in³
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Joseph was given a large box of 54 chocolates for his birthday. if he eats exactly 5 chocolates each day, how many chocolates would joseph have remaining 8 days after his birthday?
Answer:
14 chocolates
Explanation:
Joseph ate 5 chocolates each day, so after 8 days, he would have eaten 40 chocolates. so since at first he have 54 chocolates, take 54 and minus 40 and you will get 14 chocolate left
What aspects of traditional religion have been integrated into the Christian faith? (5mks)
Answer:
Traditional religion and the Christian faith share a lot of things besides being a daily practice, the most important is believing in ONE supreme god that created us humans and life after death. Traditional religion believes in praying for mercy and forgiveness and believes god reveals himself to people through special dreams or events.
Explanation:
Why does it rain more in west ferris than in east ferris
Unit 11 volume and surface area homework 3 answer key
The surface area in physic refers to the total amount of space or area that is covered by the surface of an object or matter.
What are examples of Surface Areas?The surface area of a Prism for instance is given as:
(2 × Base Area) + (Base perimeter × height);
While the surface area of a Cube is :
6 x A² where a is the length of each side.
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a farmer is painting a new barn. he will need to calculate the surface area of the barn to purchase the correct amount of paint. in which of the following units can the farmer expect to calculate the surface area?
Answer:
height and widthso basically he need to pain just the walls so he just need to calculate height and width
A small rodent lives in an area where the average temperature has been increasing drastically over a very short period of time. As a result, this species of rodent will most likely _____. Have more offspring in order to increase its survival rate evolve to have less hair over the course of a few years become the predominant form of life become extinct if the temperature gets too high
A food worker needs to measure the temperature of hot held casserole
Answer:
he should measure it with a thermometer that sticks into the dish.
Explanation:
Hope this helps you :)
In the context of alabama in the 1900s, the umwa was culturally and historically significant because it supported the civil rights movement. was a segregated organization. was an interracial organization. supported coal mining companies.
In the context of Alabama in the 1900s, the umwa was culturally and historically significant because it supported the civil rights movement in supported coal mining companies.
The umwaThe United Mine Workers of America (UMW or UMWA) is a North American labor union best known for representing coal miners. Today, the Union also represents health care workers, truck drivers, manufacturing workers and public employees in the United States and Canad.
With this information, we can conclude that in the context of Alabama in the 1900s, the umwa was culturally and historically significant because it supported the civil rights movement in supported coal mining companies.
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Answer:supported the civil rights movement
Explanation:
i just did the test
What is the correct definition of valence electrons?
Answer: It is a negatively charged particle, located in the outermost shell of an atom, that can be transferred to or shared with another atom. Or for short it just means Negatively charged particle
Hope thsi helps!
One hundred milliliters of water has a mass of 100 grams. what would be the mass of 50 milliliters of water?
Answer:
50 gs
Explanation:
because half of 100 gs is 50. your welcome!
What are the domain and range of f (x) = log (x minus 1) + 2?
[tex]log(x - 1) + 2[/tex]
Domain:The condition of log functions, is to set what's in between the brackets as being strictly greater than 0.[tex]x - 1 > 0[/tex]
[tex]x > 1[/tex]
Domain:[tex]1 < x < \infty [/tex]
Range:The range of log functions is all real numbers:[tex] - \infty < f(x) < \infty [/tex]
the boxplots above summarize two data sets, a and b. which of the following must be true? set a contains more data than set b. the box of set a contains more data than the box of set b. the data in set a have a larger range than the data in set b.
Based on the boxplots, the true statement is that the data in set A have a larger range than the data in set B.
What is a boxplot?Boxplot can be defined as a type of chart that is used to graphically illustrate the five-number summary of the data that are contained in a set with respect to skewness, locality and spread.
Based on the boxplots in the image attached below, we can deduce that the numerical data in set A have a larger range than the numerical data in set B and as such, this is considered to be the true statement.
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Anyone know any classical songs?
Answer:
ring of fire by Johnny Cash
Explanation:
hope this helps
Answer:
Some of my favs
Elgar- Salut D' Amour
Tchaikovsky- Dance of the Sugar Plum Fairy (Nutcracker)
Liszt - La Campanella
Niccolo Paganini - 24 Caprice
Chopin - Nocturne Op. 9
Debussy - Clair de Lune
Explanation:
What is the value of x? sin64°=cosx enter your answer in the box.
Answer:
x = 26
Explanation:
x = cos^-1(sin(64))
= 26
Big ideas math geometry student journal answer key chapter 9
An example of Big ideas math geometry student journal question is what percentage of 260 is 65?
What is Big Ideas Math?This is known to be a very popular Core Curriculum that has been set for Middle School and High School Mathematics. It was found to be written by Ron Larson and Laurie Boswell.
To solve for the percentage of 260 that is 65, one has to categorized them
Percentage will be p:
So the equation will be:
p. 260 - 65
p = 65/ 260
p = 0.25 which is approximately 25 percent.
Therefore a percentage of 260 that is 65 is 25%.
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The amount of money an accountant makes, m, for working h hours can be represented by the equation m=29.4h. what is the constant of proportionality of the equation?
Elaborate on whether this lewis structure represents an element or a compound.
Answer:
compound
Explanation:
its has two atoms