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Chemistry
Page 52
Questions (96,761)
15.2% by mass solution of h2o2, density is 1.01g/ml then find the molarity of the sulution.
3 answers
asked by
Upama
2,662 views
Calculate the concentration of stock trioxonitrate (V) acid which has a mass density of 1.5g/cm3 and has purity of 70%. [Mr;
7 answers
asked anonymously
56 views
CHCl3 + MnO4- = Cl2 + CO2 + Mn+2
Balance the above with half reactions in acidic medium. For the above reaction, can you please
2 answers
asked by
Maria
1,147 views
Write the oxidation and reduction half-reactions for a silver-chromium voltaic cell. Identify the anode, cathode, and the
3 answers
asked by
S
1,837 views
How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL
3 answers
asked by
haji
1,823 views
The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate
4 answers
asked by
Dina
1,925 views
what mass of sodium hydroxide will be required to neutralize completely 1.60x10^23 molecules of HCl?
3 answers
asked by
Heather
1,196 views
Which one of the following is a trans fatty acid found in most snack foods?
A. Stearic acid B. Carboxyl acid C. Oleic acid D.
4 answers
asked by
Brooklyn
804 views
A 1.50 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 in NaF. Calculate the pH of the solution after the addition of
2 answers
asked by
B
1,188 views
Olive oil has a higher viscosity than benzene. Which statement best explains the reason for the difference in viscosity between
4 answers
asked by
Cortney
2,124 views
The density of solution of sulfuric acid is 1.29 g/cm3, and it is 38.1% acid by mass. What is the mass, in grams, of 25.0 mL of
4 answers
asked by
Natalie
831 views
If 2.33 L of propane (C3H8) at 24oC and 67.2 kPa is completely burned in excess oxygen, how many moles of carbon dioxide will be
4 answers
asked by
Suzanne
2,074 views
The elements of which group in the periodic table release the most energy by gaining an electron?
The elements of which group in
3 answers
asked by
Kara
1,586 views
concentrated aqueous sulphuric acid is 98% sulphuric acid by mass and has a density of 1.80 g/l. Volume of acid required to make
7 answers
asked by
Pooja
3,300 views
Cyclohexane has a freezing point of 6.6 degree Celsius and a K(f) of 20.0 degree Celsius/m. 1.50g of an unknown solute is
4 answers
asked by
Michael
1,590 views
Write the half reaction and balanced equation for:
Cl2(g) + H2(g) -> HCl(aq) so I got: 2e- + Cl2(g) -> 2Cl- H2(g) -> 2H+ + 2e- so
3 answers
asked by
Hugh
2,330 views
How do you find the equilibrium constant of: B + O2 <-> BO2 ??
3 answers
asked by
Megan
344 views
Greg reacts 5.0 moles of hydrochloric acid(HCL)with 1.5 moles of barium hydroxide(Ba(OH)2).Which reagent is the limiting
4 answers
asked by
Jeff
1,316 views
An aqueous solution of ethanol is 14.1M C2H5OH. The density of the solution is 0.853g/mL. What is molality of ethanol in the
2 answers
asked by
Robert
1,153 views
How many moles of glucose , C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available.
C6H12O6(s) +
4 answers
asked by
Chan
2,262 views
a sample of nitrogen gas, N2 occupies 3.0L at a pressure of 3.0 atm. what volume will it occupy when the pressure is changed to
4 answers
asked by
Gurjot
2,476 views
A solution of AuCl- is mixed with a solution of Sn2+ under standard conditions. What is the equation? the answer is
2AuCl4- +
5 answers
asked by
Chemistry
1,248 views
A 15.0 g sample of an unknown compound is dissolved in 100.0 g of benzene. The boiling point is raised 2.67 oC above the boiling
4 answers
asked by
science girl
1,621 views
calculate the molar solubility of FeCO3. How many grams of FeCO3 are present in 15 L of a saturated FeCO3 solution ?
2 answers
asked by
Anonymous
1,043 views
What is the pH and pOH a solution that was made by adding 400 mL of water to 350 mL of 5.0 x 10^-3 M NaOH solution?
2 answers
asked by
Max
951 views
sodium sulfide and cadmium nitrate undergo a double displacement reactions as shown by the following equation Na2S cd(NO3)2 ->
4 answers
asked by
pat mcdole
2,558 views
Which two groups of elements in the periodic table are the most reactive?(1 point)
Responses alkali metals and halogens alkali
10 answers
asked anonymously
90 views
I, IV and V only
005 10.0 points When a chemical reaction comes to equilibrium, both the forward and the reverse reactions
5 answers
asked by
Bob
487 views
Calculate the solubility of magnesium hydroxide (Mg(OH)2), ksp=1.1x10^-11?
i have done this problem so many times and keep
4 answers
asked by
jessie
2,273 views
Can you please tell me if these are right?
Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+
3 answers
asked by
Jessie
512 views
The image is a model of sulfuric acid that has a chemical formula of H2SO. In 1-2 sentences explain why creating models, like
3 answers
asked by
deez
113 views
which element has the ground-state electron configuration [Kr]5s^2 4d^10 5p^4
3 answers
asked by
Raynique
2,943 views
The following reaction represents the decomposition of hydrogen peroxide
2H2O2 -> o2 (g) + 2H2O (l) How many molecules of water
3 answers
asked by
Andre
2,284 views
Have 0.02M of KIO3, what is the molaity of IO3?
3 answers
asked by
karen
841 views
2Cu+S→Cu2S
Copper (Cu) reacts with sulfur (S) to form copper sulfide as shown in the equation. A scientist adds 12.7 grams of
7 answers
asked by
Help Livy
267 views
True or False? An equilibrium constant K_c=1x10^7 for a reaction indicates that the reaction favors product formation.
3 answers
asked by
Sheila
1,716 views
You and another student were each given an unknown compound. Both samples contained colorless material. You each used the same
3 answers
asked by
Judy
2,174 views
Suppose 10 atoms of carbon (C) react with 20 atoms of oxygen (O) to form 10 molecules of carbon dioxide (CO2
). According to the
7 answers
asked by
kayla
262 views
What physical properties are different for the isomers of C4H10? Explain.
3 answers
asked by
Rose
1,822 views
An anhydrous metal chloride, MCln, (1.500 g) is dissolved in water and the solution reacts with silver nitrate, requiring
3 answers
asked by
Beth
778 views
When 20.8 g of calcium chloride, CaCl2, was dissolved in water in a calorimeter, the temperature rose from 25.0°C to 37.1°C.
2 answers
asked by
Glenna
798 views
Rank the following compounds in order of increasing acid strength (1 = weakest, 4 = strongest)
HCOOH CH2ClCOOH CHCl2COOH CH3COOH
4 answers
asked by
Matt
1,181 views
DISCUSSION:
This experiment was conducted to determine the iron content in a breakfast cereal. The results indicate 39% iron in a
4 answers
asked by
Suzy
761 views
How can separate 1L samples of O2 and H2 have the same average velocity/
3 answers
asked by
mel
523 views
Can hypochlorite ions oxidize bromide to bromine?
In acid solutions, yes. That's the old qual test for bromide. Shake a solution
3 answers
asked by
Raj
1,281 views
Nitric acid can be prepared by bubbling dinitrogen pentoxide into water.
N2O5(g) + H2O -> 2H+(aq) + 2NO3-(aq) a) How many moles
3 answers
asked by
Dave
1,369 views
does anybody have the answers for science Matter Interactions unit test?
2 answers
asked by
guy
141 views
Matter Interactions Unit Test
1 of 131 of 13 Items Question Cobalt has a mass number of 59 and an atomic number of 27. A student
19 answers
asked anonymously
507 views
A hydrate of copper (II) sulfate with formula CuSO4.xH2O has a molar mass of 250.0 g/mol. 2.545 g of hydrate is heated and
5 answers
asked by
Kai
9,991 views
calculate the change in pH when 9.00ml of 0.100M HCl(aq) is added to 100.0mL of a buffer solution that is 0.100M in NH3(aq) and
4 answers
asked by
mike
11,058 views
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