Eliz

Compute the vapor pressure of water above a solution formed by dissolving 25.00 grams of magnesium sulfate, MgSO4 (MM=120.3) in 95.00 grams of water at 338K. The vapor pressure of pure water at 338K is 188.0 torr. I took 95.00g H20 divided by 18.0g. which...

16 years ago

Question: A 0.400 g sample of propionic acid was dissolved in water to give 50.00 mL of solution. This solution was titrated with 0.150 M NaOH. what was the pH of the solution when the equivalence point was reached? I'm not really sure how i would go abou...

16 years ago

Question: A volume of 26.00ml of 4.30 M. HCL is mixed with 33.70 ml of 10.80 M H3PO4 s mixture is diluted to 1.00 liter with distilled water. A 50.00 ml portion of this diluted mixture is than titrated with .2200 M. NaOH. a) compute the concentration of p...

16 years ago

Question: A certain sample of phosphate rock contains 26.26% P2O5. A .5428 gram sample is analyzed by percipitating MgNH4PO4*6H2O and heating it strongly to form Mg2P2O7. compute the mass of Mg2P2O7. I'm not entirly sure what to do. Do you set up an equat...

16 years ago

Question: When 1.97 grams of Pb(OH)2(s) is added to 1.00 liter of pure water at 25 C a saturated solution (some solid is present) is formed that has a pH of 8.97. Compute the Ksp value for Pb(OH)2 using the data. How do i go about getting the Molarity fro...

16 years ago

Question: if 10.0 mg of Mg(OH)2 is placed in 100 ml of pure water, will all of the sample dissolve before equilibrium can become established, or will some sample remain undissolved? i got the Molarity of Mg(OH)2 to be .00172 M. Where does that exactly go...

16 years ago

Question: you have .420 Litters of a solution containing Ag3PO4 (s) in equilibrium with its ions. write an algebraic equation which when solved will geive the molar concentration of Ag^+1 after the addition of .200 moles of Na3Po4(s) to the .420 liters of...

16 years ago

Does the complex ion [Co(en)2Cl2]^+ have cis-trans geometric isomers?

16 years ago

if you had this complex ion [CoF6]^-3 would this ion absorb red or blue color and would you expect this complex to be high or low spin.

16 years ago

An Experiment consists of flipping a fair coin once and rolling a fair die once. what is the probability of observing a hear or six?

15 years ago

I am stuck on this question and not really sure what to do for it. I think that i can use this equation Q/dt=e*sigma*A*T^4 for it, but i'm not getting the right answer for it. Is this not the right equation? Question: Electronics and inhabitants of the In...

14 years ago

A small 9g plastic ball is suspended by a 35 cm long string in a uniform electric field 1110 N/C as shown. The ball is in equilibrium when the string makes a 23 degree angle with the vertical.

11 years ago

Could you check this exercise? Thanks Select the incorrect word in the sentence. 1. The spices might has be stored in that cupboard. 2. The rice can to be left to cook slowly. 3. Serve you Mrs, Walker her vegetarian meal. 4. The turkey must be a roasted s...

8 years ago

I have to complete the text. I did with capital letter. Could you check it. When I applied to university, I WASN’T PLANNING ON studying a language. While I WAS SEEING courses, I talked to a counsellor who suggested it. He said many young people WERE FINDI...

8 years ago

In this exercise I have to choose the best answer. Could you check them. Thanks 1. The supplies were ordered were not the ones we received. A. You should changing, suppliers. B. You ought to change supplies. C. You had better supplies. D. You might want t...

8 years ago

Could you check this exercise? thanks Six sentences have been removed from the text. Choose from the sentences A-F. A. Get into writing B. Can’t settle on C. Go through D. Can get into E. Get on this F. To get down to details. I think I’ll really (1) GET...

8 years ago

Could you check this? Complete the questions. I wrote my answers with capital 1. WASN’T just the best concert? 2. DIDN’T you get the tickets for free? 3. DON’T you want to go out for dinner? 4. DIDN’T we come to this place last month? 5. WOULDN’T you love...

8 years ago

Could you check this? Complete the questions. I wrote my answers with capital 1. Researchers are SUPPOSED TO BE VERY careful when working in the lab. 2. They ARE SUPPOSED TO CHECK and recheck dangerous experiments. 3. They are SUPPOSED TO THINK before act...

8 years ago

Instructions: Select the incorrect words in the paragraph. They were is driving down a small road in the countryside in India when they were saw the elephants. At first they didn't not understand what was there happening. A large group of elephant calves...

8 years ago

Instructions: Read the sentence. Select the correct answer. My answered are with capital letter Robin Hood …… stealing from the rich when the poor … help to survive. 1. HAD STARTED, NEEDED 2. had started , had needed 3. was starting, needed 4. had started...

8 years ago

Instructions: Read the text and select all the sentences that speculate about the past. My answered are with capital letter YOU MUST HAVE WONDERED what life was really like in the past. If we had lived in the wild west, our lives COULD HAVE BEEN VERY EXCI...

8 years ago

Instructions: Select all the correct answers. Which sentences use a gerund to talk about emotions, personal qualities and behavior? My answers are with capital letter 1. He's feeling overloaded with work on the film. 2. Maybe the press are being too inqui...

8 years ago

Please help me...thanks Instructions: Chose the best option My answers are with capital letter Trisha HASN'T SEEN or didn't see… her best friend April for almost a year. Trisha ..has call or CALLED .. as often as possible as …SHE TRAVELED or was traveled...

8 years ago

I was doing those exercise. Please could you check. Thanks Instructions: Select the correct answer. My answers are with capital letter I.Do you think …….filming by 9:00 p.m. tonight? 1. He’s have finished 2. HE’LL HAVE FINISHED 3. He’ll finishing 4. He ‘s...

8 years ago

Instructions: Organize the mystery sentence. 1. Imagine – having – to – live – prehistoric – like – people – did. Imagine having to live like prehistoric people did. 2. They - spent – a – lot – of – time – and – searching – for – fruit – nuts. They spent...

8 years ago

Organize the mystery sentence. 1. is –historic – as – as – modern. - London – is - it London is as historic as it is modern 2. The – old – buildings – newer ones - tourists – more – than - attract – do. The old buildings attract more tourist than newer on...

8 years ago

I would like someone could check my short story. Thanks One fall in the mid-1980s, Karla took some time off and got a ticket to visit relatives in Cuzco. She was fresh out of school and had begun working as an office clerk. On her return trip, she noticed...

8 years ago

Please how can correct my grammar mistakes. Thanks 3. What are your three BEST life skills? I have the ability to empathize with other people. Also I keep calm and resilient in hard situations. But the most important is I'm excellent managing my finances....

8 years ago

I wrote my Book Review: Pride and Prejudice I would like someone correct my grammar mistakes.180 words Thanks so much Pride and Prejudice Pride and Prejudice was written about 200 years back by Jane Austen. It is a romantic love story about the pride of a...

8 years ago

Could you correct me my mistakes. Please • What are you most passionate about? One of my greatest passion is helping others. I like helping people find solutions that meet their specific needs. 7.How do you typically spend your leisure time? In my leisure...

8 years ago

So far i got .118 mol of HCl than divided by 1000 which got me 1.18e-4 than i times that by .050 L =5.59E-6 moles. i than did the same thing for the H3PO4 and got for the final answer 1.82E-5. I'm confused on your meaning for than getting the concentratio...

16 years ago

I'm a little confused on what that means. does that mean that .4762 would be + 3x instead of X?

16 years ago

for the oxidation state of the Mn doesn't the NH3 have a charge. So OH is -1 and NH3 has a -1 charge plus 2 so its -2 or does it not have a charge

16 years ago

Find the relationship among deta,mg, and qE.

11 years ago

a genetics specialist thanks

8 years ago

I wrote again. Could you check it. Thanks When I applied to university, I WASN’T PLANNING ON studying a language. While I WAS LOOKING courses, I talked to a counsellor who suggested it. He said many young people WERE FINDING English valuable when they sta...

8 years ago

I was looking some courses... When I was listening to him... Before long WE ALL TAKE an English class together The last one, I don't know where is the mistake. Could you give me some clues Thanks

8 years ago

Researchers AREN'T SUPPOSED TO panic when things go wrong.

8 years ago

They were driving down a small road in the countryside in India when they saw the elephants. At first they didn't understand what was happening. A large group of elephant calves were lying in a heap, waving their trunks around. As they got closer they sta...

8 years ago

Could be IV had helped, had worked

8 years ago

I wrote again. Thanks 2. They - spent – a – lot – of – time – and – searching – for – fruit – nuts. They searching and spent a lot of time for fruit nuts. 3. they – When- could – started – killing – animals- tool, - store - they – make – for - food. When...

8 years ago

I am sorry is STONE 2. They - spent – a – lot – of – time – and – searching – for – fruit – nuts. They searching fruit and spent a lot of time for nuts. 3. they – When- could – started – killing – animals- tool, - stone - they – make – for - food. When th...

8 years ago

2. They spend a lot of time searching fruit and nuts 5. I don't have idea :( Thanks for your help , I really appreciate it.

8 years ago

whom

8 years ago