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Chemistry
Page 79
Questions (96,370)
A solution having a volume of 3.0L contains 23 mmol of Oxygen 2. What is the molarity of this solution?
3 answers
asked by
Elly
360 views
If 3.0 L of a 5.0 M SrCl_2 solution is diluted to 40 L, what is the molarity of the diluted solution?
1 answer
asked by
Lyz
368 views
The law of conservation of mass states that no change is observed in the total mass of the substances involved in a chemical
1 answer
asked by
Josh
430 views
What volume of 0.5 N nitric acid would be required to completely neutralize 300 ml of 1.0 N sodium hydroxide?
1 answer
asked by
Jeff
434 views
How many milliliters of 8.40×10^2M Ba(OH)2(aq) are required to titrate 48.65mL of 5.26×10^2M HNO3?
1 answer
asked by
Kaylee
326 views
The water from a hydrated magnesium salt is driven off by heat in a closed system. If the steam generated exerts a pressure of
1 answer
asked by
Missy
450 views
Is CaCl2 a solid or is it soluble? I know Ca is is insoluble...
1 answer
asked by
Mike
334 views
What variable always appears in any reaction rate calculation? Would that be time?~seconds/s?
1 answer
asked by
Anonymous
335 views
What variable always appears in any reaction rate calculation? Would that be time?~seconds/s?
1 answer
asked by
Anonymous
363 views
If a gas has a urms of 425m/s at 25 degrees C, what is the molar mass of the gas?
3 answers
asked by
Missy*
284 views
The water from a hydrated magnesium salt is driven off by heat in a closed system. If the steam generated exerts a pressure of
1 answer
asked by
Missy*
426 views
The running engine of an automobile produces carbon monoxide (CO), a toxic gas, at the rate of about .102mol CO per minute. a
3 answers
asked by
Missy*
377 views
Hello i have a few questions i need help with please, can you help me and thank you in advance..... What are covalent compounds
3 answers
asked by
Paul
408 views
For a Vibrational Raman, will the S or O branch be at the higher wavelength?
For a Rotational Raman, will the S or O branch be at
1 answer
asked by
John
414 views
You have a bottle of 20% NaOH. You will use some of it to make a new solution by dilution with water. How musch 20% NaOH is
1 answer
asked by
Jennifer
417 views
In reflux, water normally enters from the bottom of the condenser and exits from the top. What causes water to be able to rise
1 answer
asked by
annie
352 views
In reflux, water normally enters from the bottom of the condenser and exits from the top. What causes water to be able to rise
1 answer
asked by
annie
351 views
Is butyl paraben light sensitive?
1 answer
asked by
ann
317 views
A 0.10 M solution of a weak acid has a pH of 3.5 at 25%C. What is the equilibrium constant, Ka, for this acid?
1 answer
asked by
Tara
359 views
A scientist has 0.46 mL of a solution. How would she convert this volume to microliters?
3 answers
asked by
Crissi
380 views
How many g of sodium nitrate do I need to make one Liter of 15% m/v solution?
1 answer
asked by
Monica
362 views
Calculate the molality of CsCl in a 18% by mass aqueous solution.
Answer in units of m.
1 answer
asked by
Mike
354 views
HNO3+NaOH --- H2O+NaNO3 What is formed in the solution besides Cu(OH)2?
1 answer
asked by
Ashley
411 views
.924moles of A(g) is placed in 1L at 700C where 38.8% dissociated when equilibrium was established.
3A <--> 5B + 2C What is the
1 answer
asked by
Anonymous
265 views
Hi I need help with the AXmEn classification of Acetic Acid.
1 answer
asked by
Anonymous
272 views
A gas mixture contains 1.16 g N2 and 0.89 g O2 in a 1.49 L container at 16 degrees C. What is partial pressure of N2 & O2?
*I
1 answer
asked by
Michelle
290 views
Why do Oxygenated fuels contain less energy than hydrocarbons?
1 answer
asked by
Dave
279 views
What are the names of the following formulas:-
[AL(CN)4]^(-1) [V(CO)4CII)^(+1) [MN(H20)3CL]^(3+) [FE(SCN)3F3]^(3-) What are
1 answer
asked by
Julie
404 views
How much hydrogen and oxygen must react to produce 65.00 grams of water?
2H + O2 -> 2H2O
1 answer
asked by
Brooke
408 views
How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)?
Please help. I've tried going
1 answer
asked by
Kathryn
360 views
How do I calculate the solution of Ag(NO3)in Ca(NO3)2?
1 answer
asked by
Zoshk
307 views
A 16.5 cm3 bubble under the ocean at 2.1 atm and 12.5oC surfaces to 1.0 atm and 22.1oC. What is the new volume (in cm3)?
i used
1 answer
asked by
APRIL
296 views
What is the balanced equation for the reaction of 3.000 g of K2CO3 and HCl?
1 answer
asked by
Amber
416 views
Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted.
1 answer
asked by
Dan
358 views
Hi please help with this.
You will mix 5 ml of each 2M HCL and 2M NaOH solutions, calculate the concentration of NaCl formed in
4 answers
asked by
John
331 views
You receive two samples of a substance. After testing, it
shows that one sample contains 88% oxygen by mass an 12% hydrogen. The
1 answer
asked by
lisa
416 views
Which has a larger radius, Mg or Mg+2? Explain why. Thanks ! I think its Mg+2 but im not sure why.
4 answers
asked by
jessica
320 views
What is the maximum weight (in grams) that 15 party balloons, each filled with 2 L of helium, can lift at STP? You can assume
1 answer
asked by
Erika
387 views
At what temperature (oC) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1oC?
I did (v1/t1)=(v2)/(t2)
1 answer
asked by
kellie
395 views
A dilute electrolyte solution is prepared by dissoving iron (III) chloride in water. It is found to have a freezing point of
1 answer
asked by
Gracyn
395 views
A solution made from .650g of an unknown compound in 27.8 g of diphenyl gave a freezing-point depression of 1.56 degrees C.
3 answers
asked by
Kolby
394 views
Lake VIda is an enormous hypersaline lake that lies under 19 m of ice in the Dry Valleys region of Antartica. The freezing point
1 answer
asked by
Shea
399 views
Sorry DrBob, it's me again!
Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M
3 answers
asked by
Akhed-To DrBob222
425 views
the total pressure in the vessel is 199kPa. How much pressure does nitrogen exert on helium if it had a pressure of 94 kPa?
1 answer
asked by
Guy
383 views
Just need these last few checked:
6. Elements in a group on the periodic table have similar properties. -False? 7. Nonmetals are
2 answers
asked by
mysterychicken
492 views
Is the central metal of KMnO4 be Mn?
1 answer
asked by
Anonymous
326 views
The Bohr model stops representing correct atomic structure when? Why? What does this mean for remaining atoms? How does Bohr's
1 answer
asked by
Katie
434 views
What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?
1 answer
asked by
Ashley
372 views
What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal
1 answer
asked by
Ashley
432 views
Balance the net ionic equation
I− + NO− 2 ! NO + I2 (in acidic solution). What is the sum of the coefficients? Use H+ rather
3 answers
asked by
Jeremy
399 views
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