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A new element has been discovered and you are on the task force to determine where this new element will be placed on the
16 answers
asked by
Sarah PLEASE HELP MEEEEE
18,423 views
What is the van't Hoff factor for K2SO4 in an aqueous solution that is 5.00 % K2SO4 by mass and freezes at -1.21 ∘C?
7 answers
asked by
Raquel
3,144 views
If 10 grams of aniline are allowed to react with excess aceticanhydride what is the theoretical yield of acetanilide in
4 answers
asked by
Anonymous
1,316 views
The solubility product of copper(II) iodate, Cu(IO3)2, is 4 x 10-9 mol3 dm-9 at 25 °C.
What is the solubility of copper(II)
4 answers
asked by
John
951 views
If an ion contains 50 protons,68 neutrons and 48 electrons.what is its symbol?
4 answers
asked by
Elizabeth
6,592 views
When you were dissolving salt or sugar in a beaker of water, how did you know it was a saturated solution?
3 answers
asked by
monique
2,074 views
A 5.000g sample of a dry mixture of potassium hydroxide, potassium carboate and potassium chloride is reacted with 0.100 L of
4 answers
asked by
Catherine
1,814 views
An aqueous solution containin 1 g of sorbitol in 100g water has a freezing point of 0.102 C. Elemental analysis indicates that
1 answer
asked by
Maria
419 views
Calculater the amount of heat in kilojoules released when 50 grams of steam at 125 C are converted to 50 grams of ice at -125 C?
2 answers
asked by
Maria
761 views
Calculate the freezing point of a solution containing 12.2grams of benzoic acid, C6H5CO2H, dissolved in 250 grams of
3 answers
asked by
Joshua help please
631 views
How much heat (in kJ}) is required to vaporize it? (Assume a density of 1.00 g/mL )
I have this 60.0ML/ 1.00 g/ml = 60grams
2 answers
asked by
Creative9k
1,105 views
why would it take longer to cook food in the mountians than at sea level?
6 answers
asked by
Chad
407 views
A cylinder with a movable piston contains 2.00 of helium, , at room temperature. More helium was added to the cylinder and the
3 answers
asked by
Monica
646 views
the solubility of a gas is 0.34g/L at STP. What is it's solubility at a pressure of 0.80 atm and the same temperature?
2 answers
asked by
David
955 views
How many moles of sodium chloride are produced when 25 grams of sodium reacts with chlorine gas?
2 answers
asked by
Me.
502 views
What is the pH?
1.6 x 10^(-5)?
1 answer
asked by
Kate
234 views
Express condense order of increasing energy as a string without blank between orbit
Barium Element
1 answer
asked by
Meyanna
337 views
A 1L of buffer was prepared from 0.15 mole of Na2HPO4 and
0.10 moles KH2PO4. a) What is your pH and what is the pH change that
1 answer
asked by
Margo
460 views
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C
2 answers
asked by
Agustin
1,179 views
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at -117.3 degrees C
2 answers
asked by
Agustin
493 views
HELP!!!!!!A solution made from 19.0 g of Na Br and 500 ml of water has what molarity?
3 answers
asked by
Cindi
357 views
What property of paradichlorobenzene may convince you that it is an ingredient in mothballs?
2 answers
asked by
Helena
883 views
Aspirin (C9H8O4) is synthesized by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3). The balanced equation is
4 answers
asked by
Jocelyn
2,574 views
I got NaOH, 7%, and its density is 1,08g/mol. Calculate the molar concentration.
1 answer
asked by
Martins
296 views
I got NaOH 7%, its density is 1,08g/ml.
Calculate the molar concentration
4 answers
asked by
Martins
352 views
If 0.25 mol of methane gas (CH4) is introduced into evacuated 2.00 L container at 35 Degrees Celcius , what is the pressure in
2 answers
asked by
Diana
510 views
If 0.25 mol of methane gas (CH4) is introduced into evacuated 2.00 L container at 35 Degrees Celcius , what is the pressure in
1 answer
asked by
Diana
349 views
Find the molarity of a solution containing 0.75 mol of NaCl with a volume of 1.5 L.
3 answers
asked by
Becky
654 views
How many moles of NaHCO3 are in a 44g sample?
1 answer
asked by
Douglas
391 views
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water.
4 Au(s) + 8
4 answers
asked by
Kenah Smith
860 views
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water.
4 Au(s) + 8
1 answer
asked by
Kenah Smith
766 views
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water.
4 Au(s) + 8
2 answers
asked by
Kenah Smith
580 views
What is the relative atomic mass of naturally occuring copper to four decimal places when you are given 69,09% of copper-63 with
4 answers
asked by
Zanele
779 views
Have two tanks of 100 liters each, with salt solution. One is at 9% and 4% other. How many liters at least must be removed from
3 answers
asked by
RFT
346 views
IF 121ml of a 1.0 M glucose solution is diluted to 500.0 mL, what is the molarity of the diluted solution?
3 answers
asked by
Earl
780 views
Approximately how many mL of 5% BaCl22H2O solution would be required to precipitate all the sulfate if we assume that your
4 answers
asked by
Peder
546 views
how to balence an equasion
1 answer
asked by
Barry
391 views
What volume of 0.140 M K2Cr2O7 will be required to oxidize the Fe2+ ion in 81.5 mL of 0.176 M FeSO4 solution?
Cr2O72- + Fe2+ Cr3+
1 answer
asked by
Santiago
416 views
A sample of crude potassium iodide was analyzed using this reaction (not balanced):
I- + SO42- I2 + H2S (acid solution) If a
1 answer
asked by
Santiago
396 views
Calculate the density of an object with a mass of 2.14g and a volume of 11.40mL.
1 answer
asked by
Ashlee
441 views
determine the volume of a sample of plastic if the mass is 3.00g and the density is 1.24g/cm^3
1 answer
asked by
Ashlee
437 views
To fnd the empirical formula i have to convert the percent in g first, or a take the date in percent?
1 answer
asked by
Ana
381 views
Question 1) Consider the following reaction of calcium hydride (CaH2) with molten sodium metal:CaH2(s) + 2 Na(l) -> 2 NaH(s) +
4 answers
asked by
Ashley
1,824 views
Iron metal reacts with oxygen gas to form rust, iron (III) oxide. Which of the following correctly shows the balanced equation
6 answers
asked by
Bill
10,244 views
4 grams of barium bromate is reacted with titanium sulfate. how many grams of titanium sulfate would be needed to react with the
1 answer
asked by
Faith
402 views
Calculate the volume of a 0.225 M solution of potassium hydroxide,KOH,required to react with 0.215g of acctic
4 answers
asked by
C'm mulerk
1,394 views
How many grams of glucose would you need to make 500 ml of a 100 mM solution?
the atomic weight of glucose is 180. I was not
1 answer
asked by
Toddria A. Estes
475 views
How many grams of NaCl would you need to make 500 ml of a 100 mM solution? the atomic weight of NaCl is 35.
I was not given a way
1 answer
asked by
Toddria A. Estes
423 views
What is the volume of 454 grams of Ferrous sulphate heptahydrate?
1 answer
asked by
Will
345 views
4. The components in the following phospholipid are CH20 (CH2) 14CH3 CHOC (CH2)14CH3 CH2OPOCH2CH2NH3
1 answer
asked by
Gaudy
363 views
Calculate the volume of CO2 produce at N.T.P. by heating 200 gm 25% pure limeston
1 answer
asked by
Devdas
361 views
Brontis is working in his lab? To continue his experiment he needs to calculate the total number of ions in 3.65 mol of MgCl2.
2 answers
asked by
Tiku
511 views
Prove basics radical?
1 answer
asked by
Science
345 views
Liquid is known to be composed of glycerol. The density of glycerol is equal to 1.26 kg/L. The volume of the liquid is measured
1 answer
asked by
Will
394 views
More coavalent:AlCl3 or BeCl2?
1 answer
asked by
Coavalent
440 views
how much caco3 is consumed to produce 1500 co2?
1 answer
asked by
Anonymous
341 views
Fe2o3+co=2Feo+co2
104.5moles +104.5moles=how many moles how i solved it
1 answer
asked by
LALATENDU
381 views
So4 full name
1 answer
asked by
Chanchal
363 views
What is the rms speed of Cl2 molecules at 335 K?
3 answers
asked by
scott
1,726 views
How many mole are there in 30g of calcium chloride calc calc=111?
3 answers
asked by
Anonymous
194 views
Name two carbonates that do not decompose on heating
1 answer
asked by
Wangwa
144 views
what does NH3 (g) + H2O (l) ⟶ convert into
3 answers
asked by
Vanessa Mendez
212 views
What pressure would be required to compress 7.75 liters of hydrogen at atmospheric pressure to 5 liters
2 answers
asked by
Abdurrazaq
199 views
Carbon disulfide, CS2, reacts with chlorine, Cl2, in the presence of a catalyst between 105°C and 130°C, to form carbon
1 answer
asked by
Jenifer
228 views
Ethanol is used in alcoholic beverages and has a density of 0.789 g/ml.what volume of ethanol(in litres)would have a mass of
1 answer
asked by
Sabela
80 views