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Chemistry
Page 99
Questions (96,341)
calculate the frequency of an xray having a wavelength of 3.5*10to the negative seven m. (meters).
1 answer
asked by
Nick
367 views
What energy is associated with a photon in the infared region of the spectrum having a frequency of 4.5*10^12s^-1
1 answer
asked by
Fred
340 views
Calculate the wavelength of a photon of yellow light whose frequency is 6.3*10^5m. (meters)
1 answer
asked by
Mike
425 views
How much energy is associated with a photon in the gamma ray region of the spectrum with a frequency of 6.6*10^5s^-1
1 answer
asked by
Rob
389 views
Calculate the molecular mass of sulphur if 35.5 g of sulphure dissolves in 1 00 g of CS2 to produce a solution that has a
1 answer
asked by
Ethio
425 views
15 mL of 60oC water is mixed with 10 mL of 0oC water in a perfect calorimeter. What is the final temperature?
3 answers
asked by
Paul
383 views
Obtain the radius of a sphere of zinc if its mass is 0.23 mg. The density of zinc is 7.14 g/mL.
The given formulas are: d=m/v
1 answer
asked by
Jacob
347 views
My mobile phase for HPLC (High Performance Liquid Chromatography) test consists of 3 components in the ratio 5:250:745. In
1 answer
asked by
angie
433 views
n our text book the following equation is given:
P=(pm - p)g * R where P is the pressure drop R is the manometer reading pm is
1 answer
asked by
Bella
425 views
Please help, thanks!
what exactly are the formulae these functional groups? carboxylic carboxylate caboxyl carbonyl
4 answers
asked by
Hailey
313 views
Calculate the wavelength of broadcast waves. Calculate the energy associated with the broadcast frequency for WPHT, 1210 kHz.
1 answer
asked by
Anonymous
391 views
If there is a radiation that has a half life of 10 days and we have it for 110 days, what will be the fraction of radiation
1 answer
asked by
Jennifer
296 views
Which compound in each pair would you expect to be more soluble in water?
dibutyl ether or 1-butanol Why?
1 answer
asked by
Steph
379 views
Can you help me arrange P,Mg,N,Br,K in order of incrasing metallic character. Thank you.
3 answers
asked by
Anonymous
385 views
How many milliliters of a 1.95 M LiCl solution contain 18.2g of LiCl?
1 answer
asked by
Rebecca
404 views
(Qualitative Analysis)
I know this is vague, but if i had a solution of unknown cations that appear light purple, what could be
1 answer
asked by
Kevin
410 views
Calculate the pH of a solution made with 0.240 M H3PO3 and 0.480 M NaH2PO3.
1 answer
asked by
Jessica
371 views
Describe how you could make approximately 5 g of a 3% (w/w) ferrous ammonium sulfate solution
1 answer
asked by
Wanda
376 views
A certain classification test calls for 5 mL of 1.2 M NaOH. The only concentration of NaOH solution available is 3.0 M. Describe
1 answer
asked by
Wanda
416 views
Calculate the pH of 100.0 mL of .0200 M pyruvic acid and .0600 M sodium pyruvate
Calculate the pH of 100.0 mL of .0200 M pyruvic
1 answer
asked by
Jessica
412 views
CH3CH2CH(BR)CH=C(BONDED TO A METHYL ON ONE SIDE AND AN ETHYL ON THE OTHER)
1 answer
asked by
Jay
292 views
Is the structure for chlorous acid
H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.
1 answer
asked by
Hannah
301 views
Is the structure for chlorous acid
H O Cl O or H Cl O ? O I was thinking that both could be correct but I am not 100% sure.
4 answers
asked by
Hannah
388 views
fast no+no-->n2o2,
slow n2o2+h2-->n2o+h20, fast n2o+h2-->n2+h2o 1)What is the intermediates in the rxn 2)Write the rate law for
1 answer
asked by
Tarkan
372 views
Hi Everyone,
Please Give me two examples of organic compound that have two different functional side groups groups. Please list
1 answer
asked by
Allan
415 views
What gas involved during the reaction between zinc and hydrochloric acid? I know it's hydrogen, but why?
1 answer
asked by
Danielle
351 views
How do valence electrons play a part in the physical or chemical charactersitics of an element?
1 answer
asked by
Lauren
342 views
how many grams of solid iodine are produced by the decompostion of 2.1 g of hydrogen iodide gas?
1 answer
asked by
Taylor
349 views
How many moles of gas would be in 2.0 L of oxygen at STP?
1 answer
asked by
Camilla
368 views
much carbon dioxide is produced from 2.0 L of propane combusting at STP?
1 answer
asked by
Camilla
354 views
How much calcium hydroxide is produced from 72.0g of calcium combinig with water?
1 answer
asked by
Camilla
338 views
How many valence electrons are in Na then in the 1+ion of Na?
1 answer
asked by
Camilla
392 views
Does helium have a smaller volume than hydrogen?
1 answer
asked by
Michael
359 views
1. Out of all the "8" unknown gases, which one is the most likely to depart from the ideal gas behavior? Why?
2. Out of all the
1 answer
asked by
Michael
401 views
which contains the lowest % of hydrogen?
HCl H3PO4 H2SO4 H20 is it HCL?
1 answer
asked by
Matt
370 views
1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What
1 answer
asked by
Olivia
414 views
What happens to the current flow with time in an electrolytic cell ? explain.
thank for helping~
1 answer
asked by
limit
345 views
The Aufbau Principle is concerned with what?
3 answers
asked by
Betty
396 views
A sodium cation is what?
3 answers
asked by
Lisa
268 views
Boiling occurs when?
1 answer
asked by
Lance
272 views
Compounds that reduce the surface tension of water are considered to be?
1 answer
asked by
Betty
362 views
Condensation is considered an exothermic process is this true?
1 answer
asked by
Betty
413 views
Is this true or false
Both sublimation and melting are considered endothermic processes.
3 answers
asked by
Amy
394 views
What is considered a secondary alcohol ?
1 answer
asked by
Amy
379 views
The primary reason for forming multiple bonds when manipulating electron dot structures is:
1 answer
asked by
Help
312 views
How many 9.5 gram ice cubes will you have to put into 500 ml of water to cool the water from 22°C to 18°C?
1 answer
asked by
Walt
398 views
What is the mass of 14 liters of gasoline? Assume that the density of gasloine is .680 grams per cubic centimeter. Provide
1 answer
asked by
Cat
415 views
Why does only one of these ions (Co, Cu, or Ni) produce a positive flame test?
1 answer
asked by
Taemin
366 views
CH3CH2CH2CH( a c on top of the ch and a triple bond on top of the c)CH2CH2CH2CH3
1 answer
asked by
Mike
268 views
predict whether nitrate salt solutions containing metal ions with the following outer shell electron configurations will be
1 answer
asked by
Colby
375 views
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