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5 drops of 0.10M NaOH were added to 20mL of the buffer problem, the pHwent from 3.40 to 3.43. Write a net ionic equiation to
1. 4 answers
2. asked by Debbie
3. 3,237 views
what mass of Iodine(I2) must be used to prepare a .960m solution if 1000g of ethanol (C2H5OH0 is used?
1. 4 answers
2. asked by Cassidy
3. 2,514 views
Propane (C3H8) burns in oxygen to produce carbon dioxide and water vapor. The balance equation for this reaction is C3H8 + 5O2
1. 4 answers
2. asked by Katie
3. 7,739 views
How many grams MgCl2 will be formed from 25.6 mL of a 0.100M HCl solution reacting with excess magnesium metal
1. 4 answers
2. asked by Cassidy
3. 2,206 views
4) Calculate the solubility of calcium hydroxide, Ca(OH)2 (Ksp = 5.5 x 10-5) in grams per liter in:a. Pure water b. 0.10 M CaCl2
1. 4 answers
2. asked by Jordan
3. 3,319 views
Calculate the solubility of silver chromate, Ag2CrO4- in 0.005M Na22Cr)4- Ksp=2.6X10-12HELP PLEASE......
1. 3 answers
2. asked by DebC
3. 2,227 views
A popular buffer solution consist of carbonate (CO3 2-) and hydrogen carbonate (HCO3-) conjugate acid-base pair. Which, if any
1. 4 answers
2. asked by Debbie
3. 3,687 views
What is the molarity of a solution composed of 8.210g of Potassium Chromate (K2CrO4),dissolved in enough water to make .500 L of
1. 4 answers
2. asked by Cassidy
3. 2,406 views
what is the solubility of silver carbonate in water in 25 degrees celcius if Ksp=8.4X10-12? i don't know what to doWrite the
1. 3 answers
2. asked by joe
3. 4,008 views
for the evaporation of water during perspiration on a hot dry day1.delta H is greater than zero and Tdelta S is equal to Delta H
1. 1 answer
2. asked by ok
3. 908 views
A 0.15 M solution of butanoic acid, C3H7COOH, has a pH of 2.8210. Find the Ka of butanoic acid.Call buanoic acid HB. Then the
1. 1 answer
2. asked by Jess
3. 1,248 views
A mixture containing KCLO3, K2CO3, KHCO3, and KCL was heated, producing CO2, O2, and H2O (water) gases according to the
1. 2 answers
2. asked by Pat
3. 1,138 views
1.057 grams of a substance with a molar mass of 385.336 g/mol are dissolved in 249.92. Ther temperature for the system changes
1. 7 answers
2. asked by Amanda
3. 540 views
What is the approximate value of the K for the neutralization of nitrous acid with ammonia? Ka for the acid is 0.00045 and Kb
1. 3 answers
2. asked by Sarah
3. 841 views
Imagine that a deposit of helium gas has been discovered in Antarctica. It is being shipped to Australia in a rigid (constant
1. 2 answers
2. asked by Staci
3. 475 views
Argon makes up 0.93% by volume of air. Calculate its solubility (mol/L) in water at 20C and 1.0 atm. Henry's law constant for
1. 2 answers
2. asked by Mike
3. 777 views
Which solution will have the lowest pH ?A. .10 M HCN B. .10 M HNO3 C. .10 M NaCL D. .10 M H2CO3 E. .10 M NaOH
1. 4 answers
2. asked by Sammie
3. 2,379 views
Metallic Magnesium can be made from electrolysis of molten MgCl2. What mass of Mg is formed by passing a current of 4.55A
1. 1 answer
2. asked by Missy
3. 666 views
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration.a) How long
1. 4 answers
2. asked by Kristina
3. 4,836 views
What is the molar solubility of copper(II) carbonate at 25 oC in a solution that is 0.055 M in copper(II) chloride?I have done
1. 3 answers
2. asked by Maegan G
3. 818 views
Which of the following has the highest buffer capacity?A. 0.10M H2PO4-/0.10M HPO4 2- B. 0.50M H2PO4-/0.10M HPO4 2- C. 0.10M
1. 4 answers
2. asked by Debbie
3. 4,850 views
The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the
1. 4 answers
2. asked by Beth
3. 1,451 views
Checking to see if I did this right?Titration of HN03 titrated with NaOH ending result is 1.38. Titration A, endpoint pH = 8 is
1. 2 answers
2. asked by Debbie
3. 535 views
Calculation in grams for a .100 M solution of NaC2H3O2 * 3H2O using a 100 mL volumetric flask?
1. 1 answer
2. asked by Emily
3. 424 views
i need help setting this problem up i know what the answer is but need to know how to get to it.calculate the kinetic energy in
1. 3 answers
2. asked by Debbie
3. 1,362 views
need to figure out how to calculate.the value of DeltaH for the reaction below is -72kj_____kj of heat are released when 1.0
1. 2 answers
2. asked by Debbie
3. 669 views
Is this how I right this formula for dichlorodiaquoplatinum (II)(PtCl2(H2O)2)
1. 3 answers
2. asked by Debbie
3. 902 views
Is this the correct formula for dichlorotetramminechromium (III) nitrate?(CrCl2(NH3)4 NO3)
1. 3 answers
2. asked by Debbie
3. 735 views
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is
1. 2 answers
2. asked by Debbie
3. 579 views
left a line out of answer1.546x10-2mols CuSO4x2=3.09x10-2 mole ions
1. 1 answer
2. asked by Debbie
3. 280 views
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is
1. 1 answer
2. asked by Debbie
3. 1,193 views
A 375-gallon tank is filled with water containing 167grams of bromine in the form of Br- ions. How many liters of Cl2 gas at
1. 3 answers
2. asked by Kerstin
3. 628 views
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s
1. 4 answers
2. asked by Paulie
3. 1,452 views
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure
1. 2 answers
2. asked by Payie
3. 518 views
A solution is made by mixing 47.0 mL of ethanol, C2H6O, and 53.0 mL of water. Assuming ideal behavior, what is the vapor
1. 4 answers
2. asked by Pagye
3. 1,585 views
Using the reaction HB<=> H+ + B- and the Ka for that expression, calculate the Ka given the initial concentration of weak acid
1. 1 answer
2. asked by Myssey
3. 319 views
Describe how to make 175mL of a .10M tin(II) chloride solution??
1. 1 answer
2. asked by Destry
3. 334 views
What mass of water must be used to make a 1.35m solution that contains 8.20 moles NaOH?
1. 4 answers
2. asked by Cassidy
3. 1,452 views
What is the molal concentration of a solution made by dissolving 34.2g of sucrose (C12H22O11) (molar mass 342.34)
1. 2 answers
2. asked by Cassidy
3. 638 views
If we burn a strip of magnesium in air, there will be two main products, magnesium oxide and magnesium nitride. If we then treat
1. 2 answers
2. asked by Maggie
3. 740 views
What are some precipitates that affect our bodies
1. 1 answer
2. asked by Cassidy
3. 293 views
At 25 °C only 0.0570 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
1. 4 answers
2. asked by Brianna
3. 2,049 views
So i need to calculate the pH of 50ml water (de-ionized) with 1 ml of 1M HCl. So the moles of HCl i think is .001 divided by the
1. 2 answers
2. asked by Kyle
3. 523 views
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.44 m Na2SO4(aq)
1. 2 answers
2. asked by LLamaboy
3. 1,179 views
A 100-mL sample of water is titrated with EDTA solutions in problem 2. The same amount of Mg2+ is added as previously, and the
1. 3 answers
2. asked by Carlye
3. 4,412 views
When 3.89 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 26 °C, the solution exerts an
1. 2 answers
2. asked by Bri
3. 625 views
Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point
1. 3 answers
2. asked by Bri
3. 608 views
Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point
1. 12 answers
2. asked by Bri
3. 763 views
Phosphorus pentachloride decomposes according to the chemical equationPCl5<-->PCl3 +Cl2 A 0.260 mol sample of PCl5(g) is
1. 6 answers
2. asked by Anonymous!!
3. 2,432 views
calculate the vapor pressure of a solution made by dissolving 61.7g (molar mass= 60.06g/mol) of Urea in 212ml of water at 35C.
1. 2 answers
2. asked by PleaseHelp
3. 654 views
You are instructed to create 600. mL of a 0.56 M phosphate buffer with a pH of 7.6. You have phosphoric acid and the sodium
1. 2 answers
2. asked by Mia Ismaili
3. 1,035 views
Using values from Appendix C in your textbook, calculate the value of ΔH° for the reaction4 NH3(g) + 5 O2(g) → 4 NO(g) + 6
1. 1 answer
2. asked by Someone
3. 825 views
A voltaic cell consists of an Al/Al3+ half-cell and a Cd/Cd2+ half-cell. Calculate {Al3+} when {Cd2+} = 0.401 M and Ecell =
1. 4 answers
2. asked by Sandra Caldwell
3. 4,445 views
The Δ𝐻fus of silver is 11.30 kJ⋅mol−1 , and its Δ𝑆fus is 9.150 J⋅mol−1⋅K−1 . What is the melting point of
1. 1 answer
2. asked by Jermain D
3. 212 views

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