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How many grams of c6h12o6 are needed to form 7.50g of c2h5oh
5 answers
asked by
Winnie
5,533 views
How many grams of Cl are in 38.0g of CF2Cl2? I really want to figure out how to do it. I can't seem to understand any of this
4 answers
asked by
Luis
9,967 views
LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL/KGC, A MELTING POINT OF 328.0C, AND A HEAT FUSION OF5.5KCAL/KG.
7 answers
asked by
Jessica
4,396 views
how many grams of oxygen gas will be required to react completely with 92.0 grams of solid sodium to form solid sodium oxide?
5 answers
asked by
Tamra
2,229 views
10.0 g of NH4NO3 is dissolved in enough water to make 450.0 mL of solution. What is the molarity of the solution?
4 answers
asked by
Adrian Perez
725 views
What mass of an NO2 is formed when and NO reacts with 384 g of O2?
5 answers
asked by
MsHemmoPenguin
4,111 views
Dr.Ott can run a marathon (26.22 miles) in 2.925 hours. what is his average speed in miles per second?
5 answers
asked by
Emmy
1,729 views
Carbon dioxide is usually formed when gasoline is burned. If 30.0 L of Co2 is produced at a temperature of 1.00 X 103 C and
7 answers
asked by
Sylvia
3,515 views
In terms of saturation, how would you classify a KBr solution with a concentration of 78 g/100 g of water at 47°C?
2 answers
asked by
Hannah
839 views
Enrico Fermi was a famous physicist who liked to pose what are now known as Fermi problems in which several assumptions are made
7 answers
asked by
Garcia
4,330 views
The Decomposition of potassium chlorate, KClO3, into KCl and O2 is used as a source of oxygen in the laboratory. How many moles
4 answers
asked by
Anonymous
3,597 views
A dilute electrolyte is not necessary weak and a concentrated electrolyte weak and a concentrated electrolyte is necessary
3 answers
asked by
Tatu
198 views
The volume of a single niobium atom is 9.46E-24 cm3. What is the volume of a niobium atom in microliters?
5 answers
asked by
love
2,742 views
If ten drops of 0.3 M HCl are mixed with ten drops of 0.3 M Na2S2O3, what will be the concentration of each chemical in the
4 answers
asked by
Nancy
695 views
The activity of a radioisotope is 3000 counts per minute at one time and 2736 counts per minute 48 hours later. What is the
7 answers
asked by
Michelle
3,720 views
Calculate the Volume occupied by 1.5 moles of an ideal gas at 25 degrees Celsius and a pressure of 0.80 atm. (R= 0.08206 L
4 answers
asked by
Kimberly
2,996 views
During an experiment, 17.5 mL of oxygen gas were collected over water at room temperature (25 C) and 100.2 kPa of atmospheric
4 answers
asked by
Linda
955 views
Please help!!! I don’t understand how to do these! A walk thru would be perfect for both, thanks!!!
18.) A chemical reaction
5 answers
asked by
Kate
3,049 views
The change in enthalpy for the forward reaction is -91KJ/mol
CO(g) + 2H2(g) <-> CH3OH(g) 1. The forward reaction is? A.
4 answers
asked by
Needhelp
445 views
Using the equation Zeff = Z - S and assuming that core electrons contribute 1.00 and valence electrons contribute 0.00 to the
7 answers
asked by
Jerica
9,670 views
A 5M solution is diluted 1/10 and again 1/5. What is the concentration of each dilution?
4 answers
asked by
T
808 views
Kaochlor, a 10% (m/v) KCl solution, is an electrolyte solution. How many milliequivalents of K+ are in a 30 ml dose.
4 answers
asked by
Susie
973 views
Which solution contains more acid, 50ml of a 0.20 N HCL solution or 50 ml of a 0.20 N acetic acid solution? Which has a higher
4 answers
asked by
Terry
1,613 views
you have 100.0-mL graduated cylinder containing 50.0 mL of water. you drop a 124-g piece of brass (density =8.56 g/cm^3) into
7 answers
asked by
love
2,589 views
The compound potassium carbonate is a strong electrolyte. Write the reaction when potassium carbonate is put into water
4 answers
asked by
ben
4,905 views
Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains
4 answers
asked by
Denisha
3,228 views
Given the data in the table below, ∆Horxn for the reaction
3NO2(g) + H2O(l) → 2HNO3(aq) + 3NO(g) is __________ kJ. Substance
4 answers
asked by
Jenny
2,691 views
What volume of 12.0 M HCl must be diluted in order to make 250.00 ml of 2.00 M HCl
4 answers
asked by
Hellodudes
1,122 views
how do you determine how many electrons are in the highest occupied energy level? For example many electrons are in the highest
1 answer
asked by
Bryan
463 views
In titrations of acids and bases, what is the difference between the end point of the titration, and the equivalance point?
1 answer
asked by
Jessie
1,216 views
why do you use water in calorimeters?
3 answers
asked by
Kelly
435 views
Rewrtie and balance the equation:
N sub 2 + H sub 2 yeild NH sub 3
4 answers
asked by
M
410 views
Write the symbols of the family of elements that have seven electrons in their outermost energy level.
1 answer
asked by
M
393 views
A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular
5 answers
asked by
Lauren
1,980 views
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in
3 answers
asked by
Lauren
631 views
Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in
4 answers
asked by
Lauren
1,518 views
Iodide Ion is oxidized to hypoiodite ion IO- by hypochlorite ion ClO- in basic solution. The equation is
I- + ClO- --- IO- + Cl-
3 answers
asked by
Lauren
1,394 views
What is the molecularity of each of the following elementary reactions?
A. O+O2+N2----> O3+N2+ B. NO2Cl + Cl---> NO2 + Cl2 C. Cl
3 answers
asked by
Lauren
1,919 views
A reaction of the form aA---> Products is second order with a rate constant of 0.169 L/(mol*s). If the intial concentration of A
3 answers
asked by
Sam
739 views
For the reaction SO3 plus H2O>>H2SO4, calculate the percent yield if 500.g of sulfur trioxide react with excess water to produce
4 answers
asked by
Whittney
2,405 views
Ok this is what i got for the grams part now....
Total mass is 20.14 + 51.64 + 11.34 + 15.06 = 98.18 %H2O = (20.14/98.18)*100 =
2 answers
asked by
LT
521 views
Alexander, who weighs 159 , decides to climb Mt. Krumpett, which is 5460 high. For his food supply, he decides to take nutrition
3 answers
asked by
George
1,075 views
The relative electric charge of a proton is +1, the relative electric charge of an electron is -1 and that of neutron is 0.
What
1 answer
asked by
janice
422 views
What are the factors that cause the difference between measured pH and calculated pH in titration.
1 answer
asked by
Eunice
430 views
when filling a flask to measure the density of a sugar water solution, a student leaves an air bubble at the top of a 20.7 mL
1 answer
asked by
Mike
405 views
How to calculate the theoretical yield of aspirin to be obtained when 2.0 g of salicylic acid and 5.0 mL of acetic anhydride
4 answers
asked by
Kerrie
1,535 views
How do i convert 0.0024 to scientific notation
6 answers
asked by
Ruth
3,331 views
The molecular structure around the oxygen in water is....????
1 answer
asked by
SuSu
818 views
A student heats 10.8 g of lead to a temperature of 90.5 C. He places the hot lead into a container of water, initially at a
4 answers
asked by
Drew
476 views
A solution contains 20g of C^6H^12O^6 in 250g of water. What is the freezing-point depression of the solvent? What is the
2 answers
asked by
Veronica
595 views
In which cases are higher-energy photons released, with Li+ or Cu2+? How do you know?
3 answers
asked by
student
752 views
calculate pH of 50.0 mL of a .100 M solution of the weak monoprotic acid HX
2 answers
asked by
Emily
532 views
In an experiment, 23.0 g of ice at –25°C is converted into steam with a temperature of 124°C. How much heat is required for
2 answers
asked by
Stephen
585 views
How much heat energy is released to surrounding when 15.0 g of water at 35°C is converted into ice with a temperature of
3 answers
asked by
Stephen
445 views
In an experiment, 230 kJ of heat energy are released to the surroundings when steam is converted to liquid water. Calculate the
2 answers
asked by
Stephen
539 views
Im totally lost on how to do redox reactions. Can any one show me the steps on how to do MnO4-1 +C7H60 => Mn2 +c7H6O2?
im trying
2 answers
asked by
Kelly
512 views
The solubility of sodium floride, NaF, is 4.06 g NaF/100 g H2O at 20ºC. What mass of NaF would you have to dissolve in 1000 g
3 answers
asked by
Yvette
800 views
How can naphthalene be separayed from a mixture of KBr and Sand?
How can you separate NiCO3 from NaCO3 in detail? How can you
2 answers
asked by
brittanee
1,176 views
When the gases dihydrogen sulfi and oxygen react, they form the gases sulfu dioxid and water vapor.
How od you write a balanced
2 answers
asked by
Debbie
480 views
How many grams of ice at -6.1C can be completely converted to liquid at 27.4C if the available heat for this process is
3 answers
asked by
Anonymous
662 views
ok so heres the question:
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. For
3 answers
asked by
Tee
682 views
Nitric acid is abailable commercially at a concentration of 16M. What volume would you use to prepare 750 ml of a 0.20 M
2 answers
asked by
Julie
498 views
Describe how you would prepare 250 ml of a 0.10M NaCl solution?
4 answers
asked by
Tina
2,351 views
I have worked this over and over the answer is 37 g. but I am not coming up with that can anyone help?
A flash containing 450 ml
1 answer
asked by
Larry
346 views
Are the following isotonic, hypotonic or hypertonic.
1) H2O 2 0.9% NaCl (isotonic) 3) 10% glucose 4) 3% NaCl 5) 0.2% NaCl
3 answers
asked by
Terry
1,972 views
PLEASEHELP i am having a major difficulty finding the answer to this question
Give the balanced equation with states for both the
3 answers
asked by
Raffi
348 views
What is the heat change in J associated with 44 g of solid methanol at -149 oC changing to liquid at -83 oC?
c(methanol) (liq) =
2 answers
asked by
TaSheanda
483 views
explain how you get a decompositin..?
1 answer
asked by
Arcaral
238 views
The Specific heat of a substance is the energy (joules) required to raise one gram of substance by one degree celsius (units J/g
3 answers
asked by
Oscar
528 views
What is the electron dot structure of Ethanol?
1 answer
asked by
Shane
452 views
How many grams of sodium bicarbonate mut be decomposed by:
HCl (ag) + NaHCO3 (ag) ----> NaCl (ag) + CO2 (g) + H2O (l) to yield
1 answer
asked by
Adele
451 views
What is the Net Ionic Equation for the following:
a.) NH4Br, NaOH b.) Li2CO3, HClO4 c.)Pb(NO3)2, Kl
2 answers
asked by
Jessica
1,171 views
In terms of saturation, how would you classify a KBr solution with a concentration of 78 g/100 g of water at 47°C?
1 answer
asked by
Hannah
399 views
How much KNO3 will you have to add to 100 g of water at 40° C to make a saturated solution?
5 answers
asked by
Hannah
1,610 views
How would you classify a solution of NaCl at 35.9 g/100 g of water at 20° C?
1 answer
asked by
Hannah
389 views
Calculate the energy in radiation of wavelength 550 nm carried by 1) one photon 2) 1 mol of photons
1 answer
asked by
Grace
435 views
Calculate the energy in radiation of wavelength 550 nm carried by 1) one photon 2) 1 mol of photons
3 answers
asked by
Grace
742 views
Consider a hydrogen atom that goes from the n = 2 to the n = 1 state. (a) Calculate the wavelength, in nm, of the photon
1 answer
asked by
Pamela
426 views
Calculate the % error of an experiement if a student obtained a destiny of 1.23g/ml(predicted) and the actual value was 1.30g/ml
1 answer
asked by
Vic
391 views
Iodine monobromide and ammonia react to produce nitrogen triiodide and ammonium bromide.
(a) Balance the chemical equation for
3 answers
asked by
Megan
1,792 views
What is the molarity of the hydrochloric acid solution used if 25mL of it reacted with excess calcium carbonate to produce 5.3g
3 answers
asked by
Jenn
927 views
The mass of a single silver atom is 1.79E-22 grams. How many silver atoms would there be in 153 milligrams of silver?
2 answers
asked by
love
509 views
what instrument would you use to determine the mass of three apples
4 answers
asked by
love
598 views
What instrument would you use to determine the volume of orange juice
3 answers
asked by
love
1,174 views
Give the number of significant figures in the following number? 0.00546
3 answers
asked by
love
754 views
Give the number of significant figures in the following number? 2.300*10^-4
1 answer
asked by
love
312 views
The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 1.58 mm?
4 answers
asked by
love
2,214 views
The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 1.62
4 answers
asked by
love
814 views
The mass of a single niobium atom is 1.54E-22 grams. How many niobium atoms would there be in 312 milligrams of niobium?
3 answers
asked by
love
1,770 views
A certain salt is known to have a solubility in water of 25.2g/100g water at 100°C and 11.4g/100g water at 20°C. The salt is
3 answers
asked by
love
1,437 views
Wire is often sold in pounds spools according to the wire guage number. That number refers to the diameter of the wire. How many
4 answers
asked by
love
2,359 views
16.72g of sodium acetate trihydride (MW=136 g/mol) is dissolved in 100mL water. To this, 4.00g glacial acetic acid (Ka=2.2x10-5,
2 answers
asked by
Elle
767 views
The compound copper(II) nitrate is a strong electrolyte. Write the reaction when copper(II) nitrate is put into water
2 answers
asked by
love
639 views
How many V atoms are there in a 26.3 gram sample of V?
1 answer
asked by
love
418 views
How do you convert 237.7 g/mol to moles?
3 answers
asked by
Eliazbeth
322 views
A sample of ammonia gas occupies 2.65 L when measured at 28 degrees celsius and 1.38 atm. What is the density of the ammonia
6 answers
asked by
Gabby
439 views
For the following reaction, 0.390 moles of nitrogen gas are mixed with 0.139 moles of oxygen gas.
nitrogen (g) + oxygen (g)
3 answers
asked by
Eliazbeth
961 views
How many GRAMS of sulfur are present in 1.53 moles of sulfur dichloride ?
grams. 2. How many MOLES of chlorine are present in
4 answers
asked by
love
1,593 views
How many GRAMS of chromium(II) nitrite are present in 1.72 moles of this compound ? grams.
2. How many MOLES of chromium(II)
1 answer
asked by
Eliazbeth
349 views
When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these
5 answers
asked by
Eliazbeth
5,720 views
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