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I have 0.400*0.13=5.2 so farWhat's next? What volume of 0.300 M Na3PO4 is required to precipitate all the lead(II) ions from
1. 1 answer
2. 398 views
I figured out the NO3- which is 0.13, I'm stuck on the Cl- I have 0.24*2-0.0416= 0.4384 but I'm being told that's wrongWhat mass
1. 1 answer
2. 422 views
What volume of 0.300 M Na3PO4 is required to precipitate all the lead(II) ions from 130.0 mL of 0.400 M Pb(NO3)2?Can you please
1. 3 answers
2. 436 views
What volume of 0.300 M Na3PO4 is required to precipitate all the lead(II) ions from 130.0 mL of 0.400 M Pb(NO3)2?
1. 3 answers
2. 505 views
What mass of silver chloride can be prepared by the reaction of 160.0 mL of 0.26 M silver nitrate with 150.0 mL of 0.24 M
1. 2 answers
2. 580 views
I can't find the answer of A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and
1. 2 answers
2. 554 views
A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a
1. 1 answer
2. 496 views
A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a
1. 1 answer
2. 576 views
A 230.-mL sample of a 0.280 M CaCl2 solution is left on a hot plate overnight; the following morning, the solution is 1.10 M.
1. 1 answer
2. 1,340 views
What mass of silver chloride can be prepared by the reaction of 160.0 mL of 0.26 M silver nitrate with 150.0 mL of 0.24 M
1. 0 answers
2. 526 views
A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a
1. 1 answer
2. 597 views
Please help me what is the ionic equation for AgNO3(aq) + Na3PO4(aq)?Not sure what I'm doing wrong here is what I have so far
1. 2 answers
2. 523 views
What is the complete ionic equation for NaOH(aq) + Fe(NO3)3(aq)?I'm putting this on webassign, but it's telling me "One or more
1. 4 answers
2. 2,820 views
Please please help!!!!!Solve the inequality and write the solution set in interval notation 4x^3 -6x^2<0 2x^2 (2x-3)<0 2x-3<0 x=
1. 2 answers
2. 523 views
I am having trouble finding Court Case Influential to Establishment of Law for:The Equal Pay Act Age Discrimination in
1. 0 answers
2. 562 views
A block of weight 30N lies on a horizontal table top. A force of 40N acts parallel to the surface of the table top, but does not
1. 1 answer
2. 544 views
3. The legal status of most athletes in professional team sports in North America was for many years governed by the reserve
1. 12 answers
2. 1,079 views
Would SOMEONE PLEASE CHECK MY ANSWERS... THANKS1. The owners of major sport teams and the sponsors of major sport events do not
1. 1 answer
2. 632 views
Has the layout of this site changed?
1. 2 answers
2. 324 views
A maple tree casts a shadow of 45 ft long. At the same time, a 40-ft-long oak tree casts a shadow which is 60 ft long. Explain
1. 2 answers
2. 590 views
The volume of a cuboid is 1200cm^3, if the length is 20 cm, give two other pair of values that could be used for its width and
1. 3 answers
2. 489 views
Would Someone PLEASE HELP?1.Deviant overconformity is associated with some forms of violence in sports. The roots of this
1. 9 answers
2. 1,048 views
I need help in tying 3 things from: cellular respiration, energy transfer, osmosis, ATP to the water cycle
1. 0 answers
2. 460 views
If Mary takes money from her savings account and buys a T-bond from Jody with that money, it's:A. An example of expansionary
1. 0 answers
2. 1,136 views
An object is moving along a straight line, and the uncertainty in its position is 2.40 m. (a) Find the minimum uncertainty in
1. 1 answer
2. 737 views
An object is moving along a straight line, and the uncertainty in its position is 2.40 m. (a) Find the minimum uncertainty in
1. 0 answers
2. 710 views
Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes
1. 1 answer
2. 3,597 views
Two stars are 2.4 × 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of
1. 0 answers
2. 513 views
Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is λA = 553nm. The other wavelength is
1. 1 answer
2. 1,672 views
In the lungs there are tiny sacs of air, which are called alveoli. An oxygen molecule (mass = 5.30 × 10-26 kg) is trapped
1. 0 answers
2. 929 views
find the amount due on a $300 invoice received on june 3 and paid on june 11 if the sales terms are 3/15, n/30
1. 2 answers
2. 1,911 views
Hi I am a matric learner and I am having trouble with an lo portfolio assignment. it is about environmental issues and im stuck.
1. 2 answers
2. 653 views
List all potential rational zeros of 9x^3+6x^2-29x-10
1. 2 answers
2. 680 views
A multiple choice quiz contains five question. Each question has four answer choices. Michael is not prepared for the quiz and
1. 1 answer
2. 3,077 views
cos15°cos30°- sin15°sin30° =
1. 1 answer
2. 1,151 views
{5x-4y=-21}{-2x+4y=18}
1. 1 answer
2. 214 views
I can't remember how to do simplifying algebraic expressions can anyone help me?
1. 1 answer
2. 536 views
Given the following piecewise functionf(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the
1. 0 answers
2. 906 views
Write the balanced chemical equation for reaction the following chemical reactionozone gas , O3 , reacts with
1. 1 answer
2. 1,555 views
What is the equation for the reaction of potassium soap with HCL?
1. 0 answers
2. 297 views
In saponification, does sudsing show after adding acid. Why?
1. 0 answers
2. 274 views
Find two positive numbers whose sum is 8 such hat when the cube of th first number is multiplied by the second number, the
1. 1 answer
2. 1,339 views
Give the equation for the base hydrolysis of methyl benzoate by KOH. What are the 2 types of molecules being formed in this
1. 0 answers
2. 606 views
If the molecule triglyceride underwent base hydrolysis, what 4 products would you obtain? Give the condensed formulas.
1. 1 answer
2. 361 views
Solve the multiple-angle equation. (Enter your answers as a comma-separated list. Let n be any integer. Enter your response in
1. 1 answer
2. 2,125 views
A balloon contains 2000mL of helium gas at 300K what is the new volume in mL at 600K
1. 1 answer
2. 343 views
Given that the equation x^2(3-x) has 3 real solutions of k, give the set of possible values for k.
1. 4 answers
2. 404 views
How many grams of NaF should be added to 612 ml of 0.4 M HF (Ka = 6.8 x 10-4) to produce a buffer solution where pH = 3.10?
1. 1 answer
2. 677 views
How much energy would be released when 675 grams of steam is condensed to water
1. 1 answer
2. 515 views
Given f(x)=-4+lnx; Find the inverse of f. f^-1=?
1. 3 answers
2. 368 views
a curve is such that dy/dx=4x+7. the line y=2x meets the curve at point 'P'. Given that the gradient of the curve at P is 5.
1. 1 answer
2. 484 views
a curve is such that dy/dx=4x+7. the line y=2x meets the curve at point 'P'. Given that the gradient of the curve at P is 5.
1. 1 answer
2. 813 views
Write the slope Intercept form of the depletion of the line that contains -4,6 and 6,-1
1. 1 answer
2. 336 views
A 25.0-mL solution of 0.0660 M EDTA was added to a 33.0-mL sample containing an unknown concentration of V3 . All V3 present
1. 1 answer
2. 3,860 views
Calculate pCd2 at each of the following points in the titration of 40.00 mL of 0.0040 M Cd2 with 0.0040 M EDTA in the presence
1. 0 answers
2. 983 views
A 50.00-mL sample of groundwater is titrated with 0.0900 M EDTA. Assume that Ca2 accounts for all of the hardness in the
1. 2 answers
2. 4,273 views
The concentration of saturated NaOH is 50.0% w/w and the density is 1.52 g/mL. If exactly 8.50 mL were diluted to 1.000 L, what
1. 0 answers
2. 842 views
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium
1. 0 answers
2. 721 views
A 24.393 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 80.601 g of
1. 0 answers
2. 589 views
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.4. Calculate the pH at each of the following points in the
1. 1 answer
2. 2,238 views
0.650 L of 0.420 M H2SO4 is mixed with 0.600 L of 0.280 M KOH. What concentration of sulfuric acid remains after neutralization?
1. 0 answers
2. 481 views
Of the 3 types of fat, which type of fat would react with the greatest amount of bromine? Least amount of bromine?a. saturated
1. 0 answers
2. 490 views
block 1 has mass m1 = 480 g, block 2 has mass m2 = 540 g, and the pulley is on a frictionless horizontal axle and has radius R =
1. 1 answer
2. 1,015 views
The average rate at which energy is conducted outward through the ground surface in a certain region is 66.8 mW/m2, and the
1. 0 answers
2. 586 views
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The
1. 0 answers
2. 557 views
Show that (P → Q) ↔ (¬P ∨ Q) in fitch
1. 0 answers
2. 703 views
What is 9/20 in simplest form?
1. 2 answers
2. 478 views
I need to complete activity 11 noms et prenoms with the verb appeler, it's French 3 in the la routine quotidienne packet?
1. 1 answer
2. 422 views
A gas cylinder containing 6.38 mol of neon has a pressure of 491 mm Hg at 295 K. If 3.22 mol of helium is added to this
1. 2 answers
2. 5,422 views
Form a polynomial f(x) with the real coefficients having the given degree and zeros.Degree 5; Zeros: -3; -i; -6+i f(x)=a( )
1. 3 answers
2. 611 views
Form a polynomial f(x) with the real coefficients having the given degree and zeros.Degree 5; Zeros: -3; -i; -6+i f(x)=a( )
1. 0 answers
2. 401 views
Find the complex zeros of the polynomial function. Write f in the factored form. f(x)=x^3-3x^2+7x-5f(x)=
1. 2 answers
2. 611 views
Use the intermediate value theorem to show that the polynomial function has a zero in the given interval.f(x)=4x^3+6x^2-7x+1;
1. 1 answer
2. 1,081 views
Which would you measure in millimeters , a capacity of a juice box or the capacity of a water pitcher?
1. 1 answer
2. 396 views
At 122C the pressure of a sample of nitrogen gas is 0.830 atm. what will the temperature in Celsius be at 3.00 atm, assuming
1. 1 answer
2. 509 views
What was a event in Darwins life that lead him to the theory of evolution. When i googled it those were the only two that came
1. 2 answers
2. 500 views
Research and discuss an event in Charles Darwins' life that lead to his theory of evolution. Events could be directly in Charles
1. 3 answers
2. 1,136 views
In an experiment with a titration of Vitamin C with Iodine, why must the iodine dropper be standardized?
1. 1 answer
2. 794 views
A student completed the standardization procedure & found that the value for her dropper was 0.133 mg Vitamin C/dp l2. The
1. 1 answer
2. 548 views
During the standardization procedure of the iodine dropper, a student used 10.0 mL of a 1.00 mg.mL standard of Vitamin C. After
1. 0 answers
2. 630 views
A charge of -3.66C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius =
1. 3 answers
2. 936 views
A 5.81 10-5 H solenoid is constructed by wrapping 62 turns of wire around a cylinder with a cross-sectional area of 8.20 10-4 m2
1. 1 answer
2. 690 views
The coil of a generator has a radius of 0.12 m. When this coil is unwound, the wire from which it is made has a length of 5.8 m.
1. 1 answer
2. 923 views
The coil of a generator has a radius of 0.12 m. When this coil is unwound, the wire from which it is made has a length of 5.8 m.
1. 0 answers
2. 503 views
A shop sells candies by weight. Monisha bought 2 full bags of chocolates and 3 full bags of gummy bears for $23.50. If 3/4 of a
1. 1 answer
2. 980 views
After saving 4/5 of his salary every month, Zacky has $150 left. Micah saves 6/7 of his salary every month. If both guys save an
1. 1 answer
2. 522 views
I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic
1. 1 answer
2. 402 views
I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic
1. 1 answer
2. 395 views
1L of a buffer composed of acetic acid and sodium acetate has a pH of 4.3 (total molarity=0.0774) what is the capacity of 200mL
1. 1 answer
2. 420 views
I need 1L of a pH 4 buffer with a total molarity of 1. Propose a buffer system and a recipe to achieve this goal. (acetic
1. 0 answers
2. 362 views
1L of a buffer composed of acetic acid and sodium acetate has a pH of 4.3 (total molarity=0.0774) what is the capacity of 200mL
1. 0 answers
2. 412 views
What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are dissolved to make a 520 mL solution?
1. 1 answer
2. 725 views
1L of a buffer composed of NaHC2O4 and Na2C2O4 has a pHof 4.0 and a total molarity of 1.a). what would the effect on the pH be
1. 5 answers
2. 1,181 views
Find the concentration of Ag+ in a saturated solution of AgBrO3 that also contains 0.02M LiNO3, 0.02M KClO4 and 0.01M NaF.
1. 3 answers
2. 1,171 views
For the reaction 2A(g) + B(aq) + 3C(l)<------> D(s) + 3E(g), the concentrations at equilibrium are found to be:A: 2.3x10^3 Pa B:
1. 3 answers
2. 2,585 views
How many grams of Na2CO3 should be mixed with 50.00g of NaHCO3 to produce 2000mL of buffer with pH=10?
1. 3 answers
2. 796 views
square root of (12), square root of (12 + square root of (12)), square root of (12+ square root of (12+ square root of (12)))Wri
1. 0 answers
2. 554 views
Would someone PLEASE check my answers..THANKS in advance!!!1. Employee inventories and skills inventories are strategies for
1. 0 answers
2. 1,342 views
line xy bisect and is perpendicular to ab and cd. ab=6 and ap=5 what is the length of xy
1. 1 answer
2. 389 views
Muna and Rita had 360 seashells. Muna gave 4/7 of her seashells to Rita. In return, Rita gave 2/5 of her total number of
1. 0 answers
2. 716 views

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