Homework Help

K4Fe(CN)6 + KMnO4 + H2SO4 = ?? Please solve it, I thought there will be H2O and CO2 , but what else more there? Can anyone complete this equation for me please?

CALCULATE THE VALUE OF EMF OF THE GALVANIC CELL Ag/AgNO3 (0.001 MOL/L) AgNO3(0.1 MOL/L Ag Ag++e- ---->Ag Ag=0.80V

hi guys anyone can help with this please? The painting describes an isolated system containing gas, with a floating piston. The system goes through the following process: the propeller works At a power of 1 kW for a minute and a half. The system volume varies from 30 liters to 90 liters, the initial pressure in the system is :accountant. 0.5 MPa A. Changing the energy of the system B. Changing the enthalpy of the system

An investment offers a(n) 8.4% total return over the coming year. Bill Bernanke thinks the total real return on this investment will be only 7.4%. What does Bill believe the exact inflation rate will be over the next year?

Technically this is a project, but it homework too because I need help. My teacher for English class makes us research about a topic and then a few months later to present said topic to the class. One of the requirements needed would be an expert on the topic, someone that I don't know but is well informed on said area. Coincidentally, mine is on Computer Science, or more on the software components of it, a topic that I thought would be good but then realized it's kind of broad. Either way, I gotta stick to this because dedication is 100% lit. What I would need would generally be on what you would think Computer Science really is, and how your job, hobby, or a…

Lycan, Inc. has 6.4% coupon bonds on the market that have 19 years left to maturity. The bonds make annual payments. If the YTM on these bonds is 8.4%, what is the current bond price?

Suppose you buy a 10% coupon, 30-year bond today when it's first issued. If interest rates suddenly drop to 5%, what happens to the price of your bond? The price will rise. The price will fall. The price will not change.

Suppose the following bond quotes for IOU Corporation appear in the financial page of today’s newspaper. Assume the bond has a face value of $1,000, makes semi-annual coupon payments, and the current date is October 31, 2017. Company Ticker Coupon Rate Maturity Last Price (% of par) Last Yield Est Vol (000s) IOU 7.1 October 31, 2035 104.21 ??? 2,321 What is the yield to maturity on the bond?

We need the knowledge of creating a Portable Ceiling Fan which can give us a 2 hours of power backup. What we need: 1- Equipments 2- cost of each equipments Thanks in Advance

We know that concave lens forms a virtual and erect image. But when we wear a concave lens to correct myopia, we don't see a virtual image. Image is formed in the retina and is real and inverted. why?

Can you help me to know how to solve this problem ? * A jet-propelled boat as shown in Fig. 6 is moving at a velocity of 10m/s. The river is flowing against the boat at 5m/s. Assuming the jet flow rate is 0.15m3/s and its discharge velocity is 20m/s, what is the propelling power of this boat? (Jet boats like this are in use.)

How do I determine the SATP state of Ionic compounds in regards to solubility?

explain how social and emotional development is closely linked to the other domains of development: physical, cognitive, language and communication.

can u help me how to solve this ? im not good at chemistry its Solution 230 mg KOH 8.72 ml 0.802 mol/l solution of HCl 3.01 g m/m% NaOH =3.97 how to calculate Ph ?

Hello, I need to calculate the yield % of [(Ph)3PH]2[CoCl4] The actual yield is 2.715g My issue is with the theoretical yield, here is how I did it: I'm following this reaction that was given in the explanations of my homework; (C6H5)3P + HCl => (C6H5)3PH+ + Cl- Molar mass of (C6H5)3P: 262.29 g/mol Molar mass of (C6H5)3PH+: 263.30 g/mol Mass of Triphenylphosphine measured: 1.062 g n(triphenylphosphine)=m(triphenylphosphine)/M(triphenylphosphine) =1.062g/(262.29 g/mol)=4.049×10-3 mol Molar mass of [(Ph)3PH]2[CoCl4] : 727.33 g/mol Since there are 2 molecules of (Ph)3PH in the [(Ph)3PH]2[CoCl4], the n(triphenylphosphine) needs to be divided by 2.…

Hello, in an inorganic chemistry lab, three reactions were completed: 1) To TiOSO4 add zinc metal. The result observed is the following: A black gas is emitted from zinc, the solution experiences color changes; pink to grey to black 2) To TiOSO4 add the cupferron reagent. The result observed is the following: A bright yellow precipitate appears 3) To TiOSO4 add a solution of pyrocatechol. The result observed is the following: The solution changed to an orange-yellow solution. No precipitate observed. The solution was clear before. I need to represent the reactions with chemical equations. Any ideas? I did my research and didn't find anything …

Hello, in an inorganic chemistry lab we did the following reaction: To VOSO4 add a pinch of potassium hydrogen tartrate, 1mL of the p-phenetidine reagent, 1mL of saturated KClO3 solution and the 2mL of H2O. The result we get is a mixture with three distinct layers: Top layer is a transparent Grey-purple liquid, Middle layer is a brown-black bubble oil layer, Bottom layer is a white precipitate with a flaky appearance. In my report, I need to represent this reaction with chemical equations. Any ideas? I've done my research, and I don't find any information in regards to this type of reaction. Thank you for answering, MV101

Hi! new here, I'm working on a group paper for school where we research some theories put forward by the teacher, we're going down a particular route looking at the problem of nuclear weapons and for one bit we're looking into the creation process itself. We're sort of stuck trying to work out if the weaponizing part of the process is it all in any way reversible and if it would be in any way humanly possible to take either the "weaponized" enriched uranium and plutonium and reverse into a state where it could be used for nuclear power again? Sorry if we're missing something really obvious but some help would be really appreciated! It's just an element of our research tha…

My homework is self-inflicted as I exited Physics in 1964 . Weight of 1kg is a force of 10 Newtons and dropping 1kg 5meters for 1 second makes 10 Newtons which stretches the credibility. Anyway , I'm replicating a force of .5kg at 40 meters /sec velocity which may well be 20 Newtons, who knows. It seems that 2kg at rest is also 20 Newtons . Anyone know an equation for Newtons at rest as gravity force?

Ok so I've been working on this problem for what seems like forever now and I can't get it. Can someone PLEASE help me?! It has a picture of a flask that has a bulb on each end, these two bulbs are connected. Question: Consider the flasks in the following diagram. What are the final partial pressures of H2 and N2 after the stopcock between the two flasks is opened? (Assume the final volume in 3.00L) What is the total pressure in torr? One side of the bulb is H2 and it has 2.0L H2 and 475 torr. The other side is N2 and has 1.0L N2 and .200 atm. Please someone help me!!!!! This is due tomorrow and I have no clue how to work this out, I've tried everything …

Hi im sorry i dont know if this is the correct forum to ask this question in but here it is:I need to calculate the riboflavin content for a solution. It was made from 1 vitamin tablet dissolved in 20ml of water. Then the solution was made up to 100ml with neutral buffer. Then a 1:50 dilution was made with the solution. The concentration of riboflavin in the 1:50 solution was 86 μg/L. I need to know the riboflavin content in the tablet, in mg. Could anyone be kind enough to help me with this please. Here is what i have done for this. I am not very confident in it and im afraid that it may be incorrect. 1 tablet in 20ml > made to 100 ml > 1 i…

1. The problem statement, all variables and given/known data Fill-in with the correct tank letter or the condition (eg. PPM of O2) Refer to above Chart A: __1. Which tank contained the lowest PPM of Oxygen? __2. Which of the 4 abiotic conditions(02, C02, PH, or Temperature) is most out of line in tank...A-G? __3. Which tank has a reading out of line with expected PH? __4. Which tank has a reading out of line with expected temperature? 2. The attempt at a solution Question 2 I have B or F but can't tell which is the more appropriate answer? The B tank's conditions don't line up with its expected results in comparison to the left …

I was given a scenario in which a woman is heterozygous for the deafness gene, her husband also being heterozygous. I was asked to complete a punnett square, in which I used D for the deafness gene and d for the hearing gene, and I got DD, Dd, Dd and dd, so from that I figured that there's a 75% chance of carrying the deafness gene, 25% of the child being deaf and 25% of the child being able to hear. Assuming the woman had another child, I was supposed to give the probability of her having two deaf children in a row, and I thought that would still be 25%, thought something tells me I am extremely wrong. Finally, I'm supposed to give the probability of the woman …

Can someone figure out this question, i got it wrong on my exam and want to make sure how to do it before the finals. Thanks The question is asking for the full IUPAC name, including the R and S designature for the following compound