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Monique

Questions and answers by Monique, page 2

Questions (219)

Convert a pressure of 23.8 in. Hg into kilopascal.Ok so I looked up kilopascal and it Said 1 Kpa = 1000 pa So I began to set it
1. 1 answer
2. 319 views
Convert a pressure of 23.8 in. Hg into kilopascal.Ok so I looked up kilopascal and it Said 1 Kpa = 1000 pa So I began to set it
1. 3 answers
2. 479 views
Convert a pressure of 23.8 in. Hg into kilopascal.Ok so I looked up kilopascal and it Said 1 Kpa = 1000 pa So I began to set it
1. 4 answers
2. 2,647 views
A snorkeler takes a syringe filled with 16 mL of air from the surface, where the pressure is 1.0 ATM, to an unknown depth. The
1. 4 answers
2. 7,418 views
A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.58 mol of a gaseous product. If the
1. 2 answers
2. 1,091 views
In this reaction, 4.58 L of O2 were formed at 745mm Hg and 308 K. How many grams of Ag2O decomposed.2 Ag2O----> 4 Ag + O2 Please
1. 3 answers
2. 905 views
How many moles of gas must be forced into a 3.5 L ball to give it a gauge pressure of 9.4 psi at 25 degrees C? The gauge
1. 5 answers
2. 2,648 views
Consider the chemical reactionC + H2O -----> CO + H2 How many liters of hydrogen gas are formed From the complete reaction of
1. 3 answers
2. 1,352 views
A mixture containing 235 mg of Helium and 325 mg of neon has a total pressure of 453 torr. What is the partial pressure of
1. 2 answers
2. 1,183 views
an 8.5g ice cube is placed into 255g of water. Calculate the temp change in the water upon the complete melting of the ice.
1. 4 answers
2. 3,573 views
Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125
1. 2 answers
2. 523 views
The distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4 inches. A random sample of 36
1. 3 answers
2. 1,727 views
a 10.0mL sample of an unknown H3PO4 solution requirs 112mL of 0.100 M KOH to completely react with the H3PO4. What was the
1. 4 answers
2. 4,520 views
A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the
1. 4 answers
2. 2,886 views
An ethylene glycol solution is mad using 58.5g of (C2H6O2) and diluting to a total volume of 500.0 mL. Calculate the freezing
1. 1 answer
2. 1,095 views
an aqueous solution containing 17.5g of an unknown molecular(nonelectrolyte) compound in 100.0g of water has a freezing point of
1. 5 answers
2. 2,201 views
Describe how you would make 500.0mL of a 0.200M NaOH solution from a 15.0 stock NaOH conentration
1. 4 answers
2. 6,728 views
A KNO3 solution is made using 88.4g of KNO3 and diluting to a total soultion volume of 1.50l. Calculate the molarity and mass
1. 4 answers
2. 4,411 views
A 45.8mL sample of 5.8M KNO3 solution is diluted to 1.00L. What volume of the diluted solution contains 15.0 g of KNO3.
1. 5 answers
2. 4,171 views
how much of a 1.50M solution sodium sulfate solution in milliliters is required to completely precipitate all the barium in
1. 2 answers
2. 981 views
Hydrochloric acid is usually purchased in concentrated form with a 37.0% HCL concentration by mass and a density of 1.20g/mL.
1. 4 answers
2. 6,380 views
a 3.5L sample of a 5.8M NaCl solution is diluted to 55L.What is the molarity of the diluted solution
1. 4 answers
2. 9,201 views
to what volume should you dilute 125mL of an 8.00M CuCl2 solution so that 50.0mL of the diluted solution contains 5.9g CuCl2I
1. 4 answers
2. 7,262 views
A 13.03 g sample contains only ethylene glycol (C2H6O2) and propylene glycol (C3H8O2). When the sample is added to 100.0g of
1. 3 answers
2. 1,602 views
a 25.0ml dsmplr og 0.105M HCI was titrated with 31.5ml of NaOH. What is the concentration of the NaOHI got 0.0834M am I correct
1. 2 answers
2. 800 views
If pure water cant conduct electricity why do we have to be careful with electrical appliances near water.
1. 3 answers
2. 507 views
what is the concentration of the hydroxide ion in an acidic solution?
1. 3 answers
2. 1,424 views
what is the pH of a solution that has a H+ concentration equal to 1.76 x 10-5M?I got 4.75 is this correct
1. 4 answers
2. 783 views
I need help calculating [H3O] from pH and the pOH scaleusing my calculator. I have a TI-30XIIS
1. 2 answers
2. 604 views
what is the ph of a solution that has [H] = 0.0045can you show steps pls
1. 3 answers
2. 994 views
Identify the equation for which Keq=[Cu+]2[S2-]
1. 3 answers
2. 2,035 views
For the reaction Ag2S <====> 2Ag + S2 what happens to the equilibrium position if aqueous ammonium sulfide is addedA. Shift left
1. 6 answers
2. 5,015 views
What is the concentration of the Mg2 ion in solution when [CO3-2] = 0.25M given that theKsp= 6.82 x 10-6 for the following
1. 2 answers
2. 507 views
What happens to the equilibrium constant when a catalyst is added to the reaction mixture.A. Increase B. Decrease C. Does not
1. 3 answers
2. 1,095 views
calculate the hydronium ion concentration in 0.125M formic acid, HCHO2Ka= 1.8 x 10-4 can you show me the steps pls
1. 6 answers
2. 1,096 views
calculate the pH of a buffer solution containing 0.200M acetic acid, HC2H3O2, plus 0.150M sodium acetate. The dissociation
1. 12 answers
2. 1,843 views
Calculate the pH buffer made by combing 50.0 mL of 1.00M ammonia and 50.0mL of ammonium nitrate. Can I use the same formula? If
1. 7 answers
2. 534 views
For the reaction 2 N2O <===>O2 + 2 N2 what happens to the equilibrium position if the pressure is increased
1. 3 answers
2. 539 views
Name 3 buffers that exist in the human body? Include the conjugate and acid base pairs
1. 2 answers
2. 597 views
What is the concentration of the Mg2 ion in solution when [CO3-2] = 0.25M given that theKsp= 6.82 x 10-6 for the following
1. 5 answers
2. 1,696 views
use oxidation states to identify the element that is being oxidized and the element that is being reduced in the redox reactionS
1. 4 answers
2. 4,782 views
How does the N in NO2 have a oxidation state of 4+please explain
1. 1 answer
2. 373 views
Fe2+ + MnO-4 --> Fe3+ + Mn2+Fe2+ = +2 Mn = +7 O-4 = 4(-2) = -8 Fe3+ = 3+ Mn2+ = 2+ ok so next I gave 8H to MnO-4 and 4 H20 to
1. 2 answers
2. 641 views
Balance the following redox reaction occurring in acidic solution.H+ + Cr --> H2 + Cr3+ H+ --> H2 do I add H+ to this side since
1. 3 answers
2. 1,128 views
Balance the following redox reaction occurring in acidic solutionCu(s) + NO3-(aq)--> Cu2+(aq) +NO2(g) This is what I have done
1. 3 answers
2. 2,546 views
Please explain this to me2I- --> I2 + 2e Cr2O72- ==> Cr3+ 6e + 14H + Cr2O72- ==> 2Cr3+ + 7H20 I don't understand how the left
1. 4 answers
2. 529 views
Am I headed in the right direction.Sn + MnO4- --> Sn2+ + Mn2+ Sn --> Sn2+ + 2e- 5e + 8H + MnO4- --> Mn2+ + 4H2O If Im right what
1. 3 answers
2. 1,760 views
OxidationCN- C=2+ N=3- Can you explain how C is 2+
1. 1 answer
2. 277 views
Balancing Redox Reaction in Basic SolutionCN- + MnO-4 --> CNO- + MnO2 H2O + CN- --> CNO- + 2H +2e 3e + 4H + MnO4- --> MnO2 +
1. 4 answers
2. 4,427 views
please help this equation is driving my crazy.balance the following redox reaction in basic solution. H2O2 + ClO2 --> ClO-2 + O2
1. 2 answers
2. 604 views
Balance the redox reactin in basic.ClO- + Cr(OH)4- --> CrO42- + Cl- H2O + ClO- --> Cl- + 2OH ClO- has a +1 O# and Cl- has a -1
1. 5 answers
2. 7,812 views
Silver is electroplated at the cathode of an electrolysis cell by the half reactionAg+(aq) + e- --> Ag(s) How many moles of
1. 1 answer
2. 453 views
A radioactive sample contains 2.45g of an isotope wiht a half life of 3.8 days. How much of the isotope in grams remains after
1. 5 answers
2. 2,711 views
A wooden boat discovered just south of the Great Pyramid in Egypt had a carbon - 14 content of approximately 50% of that found
1. 4 answers
2. 1,668 views
Potash is composed mainly of potassium carbonate, K2CO3. If 1.000g of potash reacts with sulfuric acid to produce 145 mL of
1. 2 answers
2. 627 views
calculate the heat liberated when 118g of water at 0 degrees C is frozen?
1. 1 answer
2. 398 views
why does rubbing alcohol feel cold when its applied to the skin?
1. 3 answers
2. 1,688 views
calculate the amunt of heat required to completely boil 250g of water starting from room temp 22 degrees C
1. 1 answer
2. 372 views
50.0 ml sample of ethylene has a mass of 55.505g. Find the density of ethylene.
1. 2 answers
2. 497 views
a mountain with a base 5977 feet below sea level rises 17365 feet. what is the elevation of its peak
1. 1 answer
2. 389 views
Z is between I and P. Solve for x and find IP.IZ= 3x+5 ZP= 4x+13 IP= 15x-22
1. 1 answer
2. 255 views
Angle A and Angle B are complementary andgles and the m Angle A = 58 degrees, what is he measure of the supplement of Angle B.Th
1. 4 answers
2. 3,284 views
A mass of .24 kg is attached to a spring and is set into vibration with a period of .30 s. What is the spring constant of the
1. 2 answers
2. 546 views
When a mass of 28 g is attached to a certainspring, it makes 19 complete vibrations in 3.9 s. What is the spring constant of the
1. 3 answers
2. 433 views
Find the equation of the line passing through the given points(1,5) (2,7) please show work
1. 1 answer
2. 304 views
Organisms must be able to adapt to a changing external and internal environment. An organism's ability to maintain a stable
1. 3 answers
2. 1,573 views
Food that is consumed often enters the body in the form of large organic molecules, such as proteins and starches. Prior to
1. 7 answers
2. 665 views
The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar
1. 12 answers
2. 6,700 views
Does the equation x^2+x-12/x+2 have holes?
1. 1 answer
2. 307 views
Moniques credit card charges interest of 20.85% per annum on unpaid balances on her march 12 statement. she had a balance of
1. 2 answers
2. 604 views
Suppose you have a can of paint that will cover 400 ft squared. A. find the radius of the largest circle you can paint. Round to
1. 4 answers
2. 2,372 views
an electron has a kinetic energy that is 1.8 times its rest energy. What is its speed, expressed as a fraction of the speed of
1. 2 answers
2. 905 views
If a serving size is 1/6 and at the end of the night the restaurant has 5 3/8 left how many servings are left?
1. 1 answer
2. 311 views
5g of calcium carbonate reacted with 0.5mols of sulfuric acid, what mass of carbon dioxide is produced?
1. 2 answers
2. 498 views
You speakers of Castilian Spanish and Cantonese Chinese may be especially vulnerable to environmental influences in the
1. 3 answers
2. 399 views
use compatible number to estimateproblem: 1,212 + 347 537 + 3,244 329 + 64
1. 1 answer
2. 378 views
Foundations of development
1. 1 answer
2. 248 views
What comes to mind when you think of needing more time? Some examples might be studying, family, exercise, relaxation, a hobby,
1. 2 answers
2. 713 views
a car eneters a freeway with a speed of 6.7 m\s and accelerates uniformly for 3.0 I 3.8 min . how fas the car moving after this
1. 1 answer
2. 318 views
Best practices for securing local networks?
1. 1 answer
2. 321 views
India's history has often been associated with the life and thought of Mohandas Gandhi. Gandhi insisted that all his followers
1. 2 answers
2. 544 views
The measure of the largest angle of a triangle is 90� more than the measure of the smallestangle, and the measure of the
1. 2 answers
2. 803 views
Find the error in each of the following and provide an explanation of the mistake made. Thanks for the help.a) (3x/1/x-5)^1
1. 1 answer
2. 378 views
I wrote out the word pie in place of the actual symbol.Consider (pie n+pie n-1)�(pie n-pie n-1)= 1 for n �greater than or equal
1. 7 answers
2. 566 views
Find the difference quotient for the following Rational Function f(x)=5/x using the four steps outlined below.a. find f(x+h) b.
1. 2 answers
2. 671 views
When asked to solve the rational equation 11/2x^2+x-15=5/2x-5-x/x+3a student multiplied both sides of the equation by the
1. 1 answer
2. 416 views
Billing office is trying to figure out the amount of 0.75 hour overtime for a worker who is paid $32.48 for A regular hourly
1. 2 answers
2. 654 views
In a distribution with a standard deviation of eight, an individual score of 42 corresponds to a Z score of -0.5. What is the
1. 1 answer
2. 477 views
-10-6i / -9+9i
1. 1 answer
2. 274 views
-10-6i / -9+9i
1. 1 answer
2. 241 views
Will I use the distance formula for this problem.A airplane traveling at 390 km/hr in still air encounters a 65 km/hr headwind.
1. 2 answers
2. 633 views
Ricardo spends 8/9 hour reading the newspaper. He spends 1/4 of the time reading the world news and splits the remaining time
1. 4 answers
2. 946 views
Ian gets $9 for each hour he works and $10for each day he works. To find out how much he makes in a day, he made the equation
1. 7 answers
2. 1,465 views
How would you rank the principle of concurrency? Explain the design issues for which the concept of concurrency is relevant.
1. 1 answer
2. 376 views
A company made 4 million in the second quarter this is 1/3 more than it made in the first quarter and 4/5 of what it made in the
1. 2 answers
2. 631 views
Am not understanding , how to do the truth or Venn diagram to show a statement pv(q^r)is equivalent to (pvq)^(pvr). How can I
1. 2 answers
2. 639 views
Z/3-3=z/4+7Please help i don't understand this solving linear equations
1. 1 answer
2. 358 views
How to post 35252 in expanded form
1. 1 answer
2. 380 views
Write. The following in standard. Form 6120
1. 2 answers
2. 512 views
Population of Mexico has been increasing at annual rate of 1.7% if population was 100,350,000 in year 2000, predict population
1. 2 answers
2. 1,267 views

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