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As the number of solute particles in a given volume of solution increase will:
freezing point increase, vapor press decrease? or
4 answers
asked by
Thomas
2,423 views
How many milliliters of a 0.25 M sucrose solution contain 2.0 grams? The molar mass of sucrose (C12H22O11 ) is 342.3 g/mol.
Need
4 answers
asked by
V
1,611 views
A sample of gas has an initial volume of 2.4 L at a pressure of 855 mm Hg and a temperature of 298K. If the gas is heated to a
4 answers
asked by
A
894 views
From the following:
1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of
2 answers
asked by
CC
816 views
Given the initial concentrations of 0.10 atm NO2 and 0.10 atm N2O4 in a 1.0 L flask, what will be the equilibrium partial
4 answers
asked by
AMI
947 views
Calculate the solubility of Cu(oh)2 in grams per liters of solution if Ksp for Cu(OH)2 IS 4.8X 10^-20
3 answers
asked by
ami
608 views
Assuming the density of acetic acid solution is 1.0 g/mL, determine the volume of the acetic acid solution necessary to
2 answers
asked by
JACK
725 views
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations
A) 0.377 M B) 0.107
4 answers
asked by
Jordan
4,476 views
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result
4 answers
asked by
Adam
1,705 views
Need help please
Which of the following equations has the coefficients 2,1,1,2 when it is balanced? Fe2O3 + HClO4 → Fe(ClO4)3 +
3 answers
asked by
Aliyah
730 views
How might chromophores, auxochromes, and solubilizing groups be responsible for the position of dyes on a chromatogram?
1 answer
asked by
Jerett
350 views
How to balance the following equation:
Na(s) + H2O(l) yields?
1 answer
asked by
Adam
377 views
Predict whether the following bonds are ionic, covalent, or polar covalent based on
the bonding atoms electronegativities: N2 The
2 answers
asked by
Lisa
1,025 views
Calculate the molecular weight of a small protein if a 0.32 g sample dissolved in 161 mL of H2O has an osmotic pressure of 9.0
3 answers
asked by
Robby
692 views
Which of the following is not an example of a physical change?
is this the right Answer accidentally leaving a piece of toast in
2 answers
asked by
Jakey
754 views
Which of the following events are not examples of a chemical reaction?
atoms of gold turning into atoms of iron conversion of
7 answers
asked by
Jakey
1,273 views
In the chemical formula of ammonium sulfate, (NH4)2SO4, how many hydrogen atoms are present?
4
3 answers
asked by
jakey
2,067 views
How many liters in volume are occupied by 250 liters of bromine at STP?
3 answers
asked by
Anonymous
1,004 views
Consider the following reaction:
HCN <--> H+ + CN- delta H = 315kJ If 1.00 mole of CN- in the form of NaCN was added to
1 answer
asked by
Valerie
424 views
A mixture of three gases exert a total pressure of 753 mm Hg.If Gas #1 has a partial pressure of 289 mm Hg and Gas #2 has a
1 answer
asked by
Anonymous
430 views
rank the following items in order of accuracy when they are used for their intended purpose: volumetric pipet, beaker,erlenmeyer
2 answers
asked by
nina
645 views
suggest an alternative indicator for the standardization reaction. Explain the rationale behind your choice.
Used 10 g of KHP
4 answers
asked by
Jessica
823 views
Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP
3 answers
asked by
Helin
588 views
Why it is OK to prepare the titrant solution so inaccurately?
4 answers
asked by
Jamika
790 views
How much titrant will be required if your EDTA titrant is exactly 0.01 M and you weighed out exactly 0.4 g calcium carbonate?
1 answer
asked by
Jesica
429 views
we will do a project on this topic ;HPLC with fluorescence detection to quantify the amounts of various preservatives in several
1 answer
asked by
Cani
286 views
what is meant by the term "free calcium"?
1 answer
asked by
Hanu
347 views
what other compounds may be present at the trace level that would interfere with this titration? (EDTA)
1 answer
asked by
Janu
333 views
Heat of fusion (¦¤Hfus) is used for calculations involving a phase change between solid and liquid, with no temperature
2 answers
asked by
CHM
588 views
If 12.0 ml of a 0.050M sodium acetate is added to 22.0ml of water, what is the final concentration of the NaC2H3O2?
1 answer
asked by
Jae
379 views
A 0.0800-kilogram sample of a gas is heated from 25°C to 225°C. During this process, 340 J of work is done by the gas and its
3 answers
asked by
chandra
1,436 views
Calculate the heat absorbed by 125 g of water (SH = 1.00 cal/g°C) when the temperature rises from 21.0°C to 35.0°C.
2 answers
asked by
Christy
542 views