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Chemistry
Page 7
Questions (96,371)
Identify any incorrect formulas. explain your answer.
a. Mg2(SO4)3 b. Rb3As c. BeCl3 d. NaF
6 answers
asked by
Minny
12,533 views
The overall balanced equation for the production of ethanol from glucose is as follow
C6H12O6 = 2C2H5OH + 2CO2 a) what is the
4 answers
asked by
Usman Bilal
3,642 views
Butyric acid (HC4H7O2) is a weak acid with the stench of rancid butter
1.) write the equation for the dissociation of HC4H7O2 in
4 answers
asked by
Ashley
7,905 views
Using your answer from Part A, calculate the volume of a mole of Na atoms (in cm3/mol ). Assume that the entire volume is
17 answers
asked by
sara
8,040 views
If 4.00 g of metal is plated in the voltaic cell (which contains Ag and Ni with the total potential of 2.98 V) , how much metal
4 answers
asked by
Keisha
2,578 views
if the relative atomic mass of natural copper is 63.54,calculate the proportions of the isotope 65cu and 63cu
6 answers
asked by
etim sylvester
2,980 views
Why is the second derivative of a titration curve more accurate method to determine endpoints and equivalence points than the
4 answers
asked by
tevon
8,625 views
A volume of 10.0 mL of a 0.00650 M solution of Cl- ions are reacted with 0.500 M solution of AgNO3. What is the maximum mass of
5 answers
asked by
Toni Jones
2,697 views
1)) The following two half-cells are paired up in a voltaic cell. How will lowering the pH affect the E of the overall cell?
C
5 answers
asked by
Val
1,043 views
determine the pH of a 0.116 M Ba(OH)2 solution at 25 degrees C.
i keep getting 13.06 for this answer, but the answer is 13.37 :S
7 answers
asked by
Anya
7,599 views
3.22g of hydrated sodium sulphate, Na2SO4 X H2O were hearted to a constant mass of
1.42 g. Determine the value of x in the
5 answers
asked by
Freddy
2,527 views
What is the [H3O+] of a solution with a pOH equal to 5.45?
5 answers
asked by
???
2,421 views
How many grams of Fe(NO3)2 are present in 555mL of a 0.650 M solution of Fe(NO3)2??
I have no clue what to do??
5 answers
asked by
Ocean
2,489 views
Predict the order of increasing vapor pressure (at a given temperature) for the following compounds: FCH2CH2F and FCH2CH2OH and
5 answers
asked by
Master Le
5,086 views
10cm3 of propane was sparked with 60cm3 of oxygen at Stp.What is the volume of residual gases after the reaction is cooled.
5 answers
asked by
Zino
1,643 views
Camphor (C10H16O) has a heat of combustion of 5903.6 kJ/mol. When a sample of camphor with a mass of 0.124 g is burned in a bomb
5 answers
asked by
Nisah
3,074 views
Calculate the volume of CO2 that would be produced from 0.5 mole of Fe2O3 according to the
5 answers
asked by
Joy
1,447 views
How many molecules are in 15g CH4? How do you figure this out?
4 answers
asked by
Lauren K.
1,274 views
A sample of gas of mass 2.929 g occupies a volume of 426 mL at 0degree Cel and 1.00 atm pressure. What is the molecular weight
6 answers
asked by
Peter
2,270 views
Rank the compounds by stand molar entropy.
F2(g), Ne(g), HF(g) I am a little confused by this question, wouldn't it be ranked by
5 answers
asked by
Anonymous
7,902 views
Rank thefollowing elements in order of decreasing atomic radius. N, B, Be, Li?
I thought it was N, B, Be, Li
4 answers
asked by
Anna
2,352 views
A 25ml solution of 0.5M NaOH is titrated until neutralized into a 50ml sample of HNO3. What was the concentration of the HNO3?
7 answers
asked by
Rodney Peter
802 views
Explain the temperature change upon mixing ethanol and water.
4 answers
asked by
Elcy
254 views
Given the equilibrium:
3H2(g) + N2(g) ⇌ 2 NH3(g) Δ H < 0 How will the equilibrium shift if the concentration of ammonia is
4 answers
asked by
Panda
726 views
A contains 1.60g of trioxonitrate(v) acid in 250cm³ of the solution.
B contains 9.0gdm3 of XHCO3, 25cm³ portions of B required
4 answers
asked by
Marvellous
464 views
If 0.500 mol of nitrogen gas occupies a volume of 11.0 L at 0°C, what volume will 2.15 mol of nitrogen gas occupy at the same
4 answers
asked by
Dna
1,919 views
CALCULATE THE PERCENTAGE OF MASS BY NITROGEN IN TRIOXONITRATE (V)ACID
4 answers
asked by
CHISOM
844 views
What will be observed when aqueous silver trioxonitrate (v) is added to aqueous sodium bromide
4 answers
asked by
Akinlo
1,265 views
Which is true about distillation?
It uses semipermeable membranes to filter out particles. It removes mainly large particulate
4 answers
asked by
idk
131 views
calculate the solubility of 10.1g of potassium trioxonitrate v dissolved in 50g of disstilled water at 25 degree celsius
4 answers
asked by
loveth
735 views
Scientists used radioactive hydrogen to make water. They grew plants using the radioactive water. What happened to the
1 answer
asked anonymously
170 views
Calculate the relative molecular mass of silver trioxonitrate(5)
1 answer
asked by
Precious
130 views
Write the formation reactions.
{You Must include the states of matter for each atom or compound} NaClO4(s)
5 answers
asked by
Ashley
6,560 views
Which element has the same number of valence electrons as bromine (Br)?
1.krypton 2.potassium 3.selenium** 4.chlorine i think the
30 answers
asked by
Caca Fleischmann
10,431 views
Which reaction of ammonia does not involve the non-bonding pair of electrons on the nitrogen atom?
A NH3(g) + CH3I(g) → CH3NH
5 answers
asked by
Ariana
3,428 views
the volume of a sample of gas is 650.ml at STP. what volumes will the sample occupy at 0.0degrees celsius and 950.torr???
is it
5 answers
asked by
Andy
1,879 views
Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high
5 answers
asked by
Skye
5,314 views
Which pairs of liquids are likely to be miscible?
a. H2O and CH3OH b. H2O and C6H6 c. C6H14 and CCl4 d. CCl4 and CH4OH
6 answers
asked by
Kan
6,473 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction.
How many
1 answer
asked by
bear
120 views
Calculate the volume of 0.300M HNO3 needed to complete neutralize 25.0ml of 0.250M Sr(OH)2
5 answers
asked by
Doleen
2,423 views
In s 0.30 mol/L HNO3(aq) solution.
a) what is the concentration of nitric acid molecules. b)what is the hydroxide ion
7 answers
asked by
JM
3,402 views
Determine the mass % (m/m) of a NaCl solution if 58.5 grams of NaCl was dissolved in 50 ml of water (assume the density of water
4 answers
asked by
Ravisha
1,640 views
My chem teacher gave us this problem
Twelve-gauge copper wire,like the kind commonly used in residential electrical systems, is
5 answers
asked by
Julissa
1,119 views
Determine the empirical formula for each substance.
1. A dead alkaline battery is found to contain a compund of Mn and O. Its
6 answers
asked by
peter
4,144 views
Use Charles Law to solve for the missing value of each of the following a) 80.0 mL, T1= 27 degrees C, T2=77 degrees C. V2 =?
b)V1
7 answers
asked by
jerson
3,982 views
some reactions that are considered to be spontaneous at low temperatures will not proceed at a measurable rate or form any
4 answers
asked by
Anonymous
4,150 views
1. Which statement is true about the following molecule? (1 point)The molecule is composed of four atoms.The molecule contains
94 answers
asked by
cIATA
24,649 views
Which statement about an atom is correct?
A.The electrons had a negative charge and is found outside of the nucleus. B. The
7 answers
asked by
Yamshae
2,276 views
Which are particles that make up the nucleus of an atom select the two correct answers
3 answers
asked by
Garris
240 views
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the
28 answers
asked by
Anonymous
10,808 views
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