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Monique

Questions (220)

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. 1 answer
2. 7,329 views
Describe how you would make 500.0mL of a 0.200M NaOH solution from a 15.0 stock NaOH conentration
1. 1 answer
2. 6,794 views
a 3.5L sample of a 5.8M NaCl solution is diluted to 55L.What is the molarity of the diluted solution
1. 1 answer
2. 9,290 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. 2 answers
2. 6,454 views
how much of a 1.50M solution sodium sulfate solution in milliliters is required to completely precipitate all the barium in
1. 1 answer
2. 1,040 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. 2 answers
2. 4,227 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. 1 answer
2. 4,484 views
an aqueous solution containing 17.5g of an unknown molecular(nonelectrolyte) compound in 100.0g of water has a freezing point of
1. 4 answers
2. 2,263 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. 0 answers
2. 1,133 views
A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the
1. 1 answer
2. 2,960 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. 2 answers
2. 4,606 views
If im given mass percent and mass solvent how do I find mass solute and mass solution.example: Mass percent = 3.8% and Mass
1. 3 answers
2. 8,693 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. 1 answer
2. 1,795 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. 1 answer
2. 571 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. 1 answer
2. 3,644 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. 1 answer
2. 1,231 views
Consider the chemical reactionC + H2O -----> CO + H2 How many liters of hydrogen gas are formed From the complete reaction of
1. 1 answer
2. 1,406 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. 4 answers
2. 2,704 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. 2 answers
2. 935 views
A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.58 mol of a gaseous product. If the
1. 1 answer
2. 1,148 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. 1 answer
2. 7,463 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. 1 answer
2. 2,704 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. 2 answers
2. 523 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. 0 answers
2. 351 views
A thief uses a bag of sand to replace a gold statue that sits on a weight sensitive alarmed pedestal. The bag of sand and the
1. 1 answer
2. 3,407 views
So I have this question it readsConsider the generic chemical reaction How many moles of B are required to completely react with
1. 3 answers
2. 5,175 views
Consider the reaction between reactants S & O22S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9
1. 1 answer
2. 567 views
Consider the reaction between reactants S & O22S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9
1. 9 answers
2. 6,251 views
Find the limiting reactant for the initial quantities of reactants2k(s) + Cl2(g)--> 2KCl(s) 1.8 mol K; 1 mol Cl2 I'm lost
1. 1 answer
2. 6,167 views
Find the limiting reactant for the initial quantities of reactants2k(s) + Cl2(g)--> 2KCl(s) 1.8 mol K; 1 mol Cl2 I'm lost
1. 1 answer
2. 967 views
For each precipitation reaction, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of
1. 1 answer
2. 7,229 views
Is it true that Na+ and K+ are always spectator ions in reactions that involve sodium and potassium compounds
1. 1 answer
2. 1,199 views
I need help balancing this problemHClO3(aq excess) + CaCO3 I got to HCO3 + CaCiO3
1. 2 answers
2. 605 views
Calculate the number of moles in 22.6 g C3H7OH22.6g C3H7OH x 1 moL C3H7OH /60.11g C3H7OH = 0.375 molC3H7OH Am I right
1. 1 answer
2. 470 views
What is the mass of 0.0065 mole of ruthenium6.5 mol Ru x101.07g Ru/1mol Ru = 0.656g Ru Or is it 0.66g Ru
1. 1 answer
2. 315 views
Li(s) + N26Li(s) + N2 ==> 2 Li3N Li =6. Li =6 N= 2. N =2 Am I correct now
1. 2 answers
2. 593 views
I have to put the correct complete and balanced equation forLi(s) + N2(g) Li(s) +N2(g) --- LiNi2(s) I think I'm correct what do
1. 3 answers
2. 440 views
What is the net ionic equation for the reactionCu(s) + 2 Ag (NO3)2(aq) --- Cu(NO3)2(aq) + 2AG(s)
1. 2 answers
2. 788 views
C4H10O(l) + O2(g) --- CO(g) + H2O(g)When I balanced it I got this C4H10O(I) + 4O2(g) --- 4CO(g) + 5H2O Am I correct
1. 1 answer
2. 2,656 views
Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help
1. 2 answers
2. 491 views
Four couples have purchased ticket to the school play. Their sear are next to one another in a single row. If each couple sits
1. 11 answers
2. 530 views
When the following equation is balanced with the smallest integral coefficients, the coefficient of the HNO3 isLi2CO3(s)
1. 1 answer
2. 751 views
Calculate the number of molecules in 3.11 mol of CCL4I got 2.88E26 am I correct
1. 1 answer
2. 714 views
How many CO2 molecules can be made with 0.500 mol of oxygen atoms?
1. 4 answers
2. 2,573 views
Calculate the number of molecules in 3.11mol of CCL4this is what I'm doing I got the molecular weight of CCL4 which is 181.88
1. 0 answers
2. 587 views
What is the percent zinc in Zn(NO)32xZn/189.41]=34.52% am I right
1. 2 answers
2. 362 views
What is the formula mass for (NH4)3PO4
1. 1 answer
2. 798 views
Iron is found in Earths crust as several different iron compounds. Calculate the mass (in kg) of each compound that contains 1.0
1. 7 answers
2. 8,702 views
Caffeine a stimulant found in coffee has the mass composition of C, 49.48%, H, 5.19%, N, 28.85%, O 16.48%. The molar mass of
1. 3 answers
2. 3,674 views
Calculate the empirical formula for the compound1.245g Ni, 5.381g I Can you help with the steps please
1. 1 answer
2. 994 views
Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron.Fe2O3 I really can't figure this one out please
1. 1 answer
2. 587 views
Given 2.05 mol Hg find mass Hg2.05 mol Hg x 200.59g Hg / 1 mol Hg =411g Hg My question is would my answer be wrong if I put it
1. 2 answers
2. 465 views
Ok I think I'm gettingvit I hope, I need to check my work.Given 0.0449 mols Pt Find mass 0.0449 mol Pt x 195.08/1 =8.76g Pt Am I
1. 2 answers
2. 392 views
Confused again ok I have to find the number of atoms in carbon with a mass of 13.5. So this is what I didi.13.5 / 12.01* 6.022
1. 1 answer
2. 388 views
Ok I'm given 38.5 mg as mass. I have to find moles and number of atoms. Am I also converting mg to g? If so please help
1. 1 answer
2. 748 views
How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute.This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am
1. 2 answers
2. 8,122 views
Very confused!Converting between grams of a compound and grams of a constituent element Determine the mass of oxygen in a 5.8 g
1. 2 answers
2. 932 views
A 1.250 g sample of copper wire was heated in air and reacted with oxygen to give 1.565 g of copper oxide product. Calculate the
1. 3 answers
2. 2,152 views
A 30-foot cable is suspended between the tops of two 20-foot poles on level ground. The lowest point of the cable is 5 feet
1. 4 answers
2. 5,101 views
Sorry if you spend $4 every 7 mins, in 9 days you'll spend how much
1. 1 answer
2. 382 views
A car covers 2924 km in 43 hrs. What is it's speed
1. 2 answers
2. 405 views
Write the Lewis structure for each ionAl3+ Mg3+ Se2- N3- My question is why does Se2- get a bracket and 8 dots. And the same for
1. 1 answer
2. 1,870 views
Chris works an electrician with the Central Electric Company. He earns $16.25 per hour with time and a half after 40 hours. If
1. 3 answers
2. 867 views
I don't understand what valence electrons and core electrons are.Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and
1. 1 answer
2. 3,066 views
When a boxer has been knocked out what part of his brain has been affected?
1. 1 answer
2. 442 views
Rip Van Winkle was a man who slept 20 years Upon autopsy, it was found that there was structual damage to his?
1. 1 answer
2. 965 views
When a boxer is knocked out, it is believed that his _____ has been affected.
1. 2 answers
2. 486 views
Silver has a density of 10.5 g/cm3 and gold has a density of 19.3 g/cm3. Which would have a greater mass, 5 cm3 of silver or 5
1. 1 answer
2. 1,554 views
An irregular shaped stone was lowered intro a graduated cylinder holding a volume of water equal to 2.0 ml. The height of the
1. 2 answers
2. 1,341 views
Thanks Ms. Sue
1. 1 answer
2. 283 views
What are the atomic number (z) mass number (a) and symbols of the carbon isotope with 7 neutrons.What is and how do I get the
1. 1 answer
2. 511 views
What was the real significance of the Mempa case?What is the difference between a suspended sentence and probation?
1. 1 answer
2. 514 views
If the specific gravity of E85 gasohol is 0.801' what is the mass of 1.00 gallon of th E85 fuel. Given 1 gallon = 3.75 liters
1. 4 answers
2. 1,454 views
A thin lead apron is used in dental offices to protect patients from harmful X rays. If the sheet measures 75.0 cm by 55.0 cm by
1. 3 answers
2. 2,122 views
A 50g sample of metal was heated to 100 degrees Celsius and then dropped into a beaker containing 50g of water at 25 degrees
1. 3 answers
2. 2,121 views
A three-year bond has 8.0% coupon rate and face value of $1000. If the yield to maturity on the bond is 10%, calculate the price
1. 0 answers
2. 1,405 views
Give two different kinds of specific examples of transfer from an L1 to and L2?A particular grammar construction, a particular
1. 1 answer
2. 467 views
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner?why or how based on
1. 1 answer
2. 557 views
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?
1. 1 answer
2. 488 views
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?
1. 1 answer
2. 574 views
Give two different kinds of specific examples of transfer from an L1 to and L2?A particular grammar construction, a particular
1. 1 answer
2. 544 views
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner?why or how based on
1. 1 answer
2. 1,171 views
Three identical stars of mass M form an equilateral triangle that rotates around the triangle's center as the stars move in a
1. 0 answers
2. 682 views
A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long
1. 0 answers
2. 840 views
maximize Z = 30x+50ysubject to 2x+4y=100 and x+5y=80
1. 1 answer
2. 1,603 views
How has media convergence changed American culture?
1. 2 answers
2. 485 views
[THESE QUESTIONS ARE NOT THE SAME AS MY PREVIOUS POST) I am working on my take home quiz questions now...and i am not sure about
1. 1 answer
2. 1,083 views
I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone
1. 0 answers
2. 1,165 views
Could you please give an example of a topic sentence?
1. 1 answer
2. 414 views
What impact did Martin Luther and John Calvin have upon the perceptions and events of the Old World?
1. 0 answers
2. 507 views
Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What
1. 2 answers
2. 638 views
A child riding a bicycle has a total mass of 40kg. The child approaches the top of a hill that is 10m high and 100m long at
1. 1 answer
2. 2,688 views
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?Baseball. Ocean liner. Both the same. Can't
1. 1 answer
2. 665 views
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?Baseball. Ocean liner. Both the same. Can't
1. 2 answers
2. 918 views
A 4430-kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?
1. 3 answers
2. 597 views
An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the
1. 2 answers
2. 4,088 views
Which of the following would a company use to securely link to a new user within a day ?
1. 1 answer
2. 362 views
How do find the inverse function for this problem:f(x) = -(x+3)^2, x is greater than or equal to 3 I know the first thing you do
1. 1 answer
2. 396 views
How do find the inverse function for this problem:f(x) = -(x+3)^2, x is greater or less than 3 I know the first thing you do is
1. 1 answer
2. 373 views
An open box is to be made from cutting squares of side "s" from each corner of a piece of cardboard 25" by 30".Write an
1. 2 answers
2. 731 views

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