chemistry! URGENT

59,905 results, page 59

Chemistry

Will ph value of water be same at temp 25°C & 4°C? Justify it.

Chemistry

Calculate the number of C, H and O atoms in 1.75 g squaric acid. :)

College chemistry

is dispersion force the strongest IM for Cl2

Chemistry

How to separate acetic acid from aqueos solution.

Chemistry

How to separate acetic acid from aqueos solution.

chemistry

complete and balance the following : Zn(s)+HCl(aq)-> Zn(s)+Cu2+(aq)->

chemistry

calculate when 7.14 of butane reacts with excess oxygen

chemistry

In beta decay, why does the atomic number increase by 1?

Chemistry 111

what is the molar mass of Butane,C7H10?

Chemistry

How calculate concentration by using molecular weight.

Chemistry

Hi. How would I determine the rate constant of a reactant?

chemistry(:

What happened to the outer electrons of H and O to form water?

Chemistry

How many moles of H atoms are there in 33.4282 grams of C2H4Cl2?

chemistry

Calculate the ph for ch3co2h,3% dissociated at a concentration of 0.02 mol dm-3.

chemistry

a compound used to manufacture mustard gas is ?

chemistry

bond angle and hybridisation of oxygen in water is ?

Chemistry

give the reaction when lead nitrate is heated

chemistry

What causes the calcium and ATP concentrations to decrease?

chemistry

why doesnt sun attract earth towards it

chemistry

Name the substances which decolourise bnromine water

Chemistry

convert 33 miles/hour to meters/minute

chemistry

how do you calculte the volume of a single drop of water??

chemistry

how to draw newman projection for different structure

chemistry

balance the equation:C2H6 + O2 = CO2 + H2O

AP Chemistry

What is the weight of 6.3 × 10 21 atoms of phosphorus? Answer in units of g

chemistry

convert 1.5ft^3 to liters show work

chemistry

what is 124.5 when rounding to the 3rd significant figure?

Chemistry

What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?

Chemistry

What is the empirical formula of a hydrocarbon that contains 89.94% C by mass?

Chemistry 12

How do we determine the specific gravity of a solution? and what unit is it in?

Chemistry

What is the frequency of light having a wavelength of 5.6 micrometers?

Chemistry

Define the terms 'weak acid' and 'catenation'

Chemistry

How many grams does 0.500 moles of CuBr weigh?

chemistry

how many carbons in nonane are in the sp2 hybridization state

Chemistry

how many valence electrons does a carbon radical possess?

chemistry

find the density of ethyl alcohol if 80.0 cm^3 "weighs" 63.3g.

Chemistry

What is the oxidation number of chromium in K2Cr2O7? I know that K = 1 O=-2 so 7*-2=-14 I do not know what to do now. Thank you for your help!

chemistry

which is the more active metal Co+Cr(NO3)2....no reaction

Chemistry

What is the percent zinc in Zn(NO)3 2xZn/189.41]=34.52% am I right

chemistry

how many moles of H2SO4 are required to react with 2.63 mol of AL

Chemistry

What is the total number of orbitals having n = 5 and ℓ = 3? A. 3 B. 5 C. 7 D. 9 E. 10

chemistry

IF YOU HAV 1.40 MOLES OF H2O HOW MANY OF NH3 CN BE PRODUCED.

chemistry

how many grams of CaO can form if 82.o g of CaCO3 decomposed

Chemistry

Is C12H22O11 soluble in water and is it ionic or a acid?

Chemistry

Calculate [H3O+] and [OH-] in 0.22 M KOH(aq). This is a strong base.

CHEMISTRY

Why must an organic layer be washed with NaOH?

chemistry

Calculate the molality of a 10% H3PO4 solution in water.

chemistry

How do i find the weight % of sulfate if I am given the mass?

chemistry

what are the three modes of expression of percentage concentration?

chemistry

The pH of 6.0 M KOH is 13.78. What is the hydrogen ion concentration of this solution

chemistry

What is the origin of homochirality in amino acids and sugars?

Chemistry

How many kilocalories are released by freezing 4.6 moles of H20?

Chemistry 121

What is the lewis dot structure of C2H5F?

chemistry

Given 6.00 L of N2 at -25 degrees C. Find Vol in L at 100K

Chemistry

What is the molar concentration of the standard KMn04 soultion?

chemistry

how would I draw the expanded formula for isopropylcyclopropane?

chemistry

Calculate the volume of 1.60 in milliliters that contains 6.00 of solute.

chemistry

Hi everyone, Why are metals more reactive in acids? Thanks

Chemistry

What does it mean when we say that KHC8H4O4 is not hygroscopic ? thank for helping~

chemistry

in saturated sugar solutions what is the solute? what is the solvent?

chemistry 1211

What is the mass of a ball with a velocity of 35.1 m/s and a wavelength of 8.92 x 10^-34 m

Chemistry

How many molecules (not moles) of NH3 are produced from 8.92×10−4 g of H2?

Chemistry

What is the molecular weight of 30% aqueous nitric acid?

Chemistry

Can you help me arrange P,Mg,N,Br,K in order of incrasing metallic character. Thank you.

chemistry

how many mL of 0.15 M NaOH solution are required to neutralize 35.00 mL of 0.22 M HCl

chemistry

what is the concentration of the hydroxide ion in an acidic solution?

chemistry

what is the pH of a solution that has a H+ concentration equal to 1.76 x 10-5M? I got 4.75 is this correct

chemistry

what is the ph of a solution that has [H] = 0.0045 can you show steps pls

Chemistry

How many moles of gas would be in 2.0 L of oxygen at STP?

Chemistry

Does helium have a smaller volume than hydrogen?

chemistry

How many liters of base will neutralize 1 liter of acid?

Chemistry

Condensation is considered an exothermic process is this true?

Chemistry

Which electron configuration best represents bromine?

chemistry

why is NO equal to nitrogen oxide isn't the charge of N ion +3?

chemistry

Balancing redox equations reactants: Cu, NO3

Chemistry

how many moles of o2 are needed to produce 3.91 mol fe2o3

chemistry

how many half lives will it take for 50 g of 99Tc to decay to 6.25 g?

Chemistry

A 0.39 M solution of a weak acid is 3.0% dissociated. Calculate Ka.

Chemistry

Calculate the pH of a 0.053 M (C2H5)2NH solution (Kb = 1.3 10-3).

chemistry

Calculate the pH of a 0.063 M (C2H5)2NH solution (Kb = 1.3 10-3).

chemistry

how do i change 2866.0 J to kJ/mol? can someone please help me?

chemistry

2. What is the density of propene gas measured at 2.5 atm and 47 C?

chemistry

Air dry weight of MgNH4Po4 * 6 H2O

chemistry

What is the wavelength of a 2500 kg truck traveling at a rate of 70 km/h?

chemistry

how would you prepare 300 ml of a 10% CaCl2 solution (w/w)?

chemistry

What is the electron-domain (charge-cloud) geometry of

Chemistry

Which is a polar covalent bond? PbCl2 or CS2?

Chemistry

20 degrees C is 6 g Cu So4/25 g H2O is this saturated or unsaturated?

chemistry

The pH of an HCl solution is found to be 1.74. Therefore the [H3O+] is:

chemistry

You have a 0.0825 M solution of HCl. You expect the pH to be

chemistry

Phenolphthalein turns __________ when the solution is basic.

chemistry

What is the mass percent oxygen in the compound NaNO3?

chemistry

pH is defined as 10^-log [H3O+] True or False

chemistry

How many grams of na cl are required to make 500ml of a 0.65 percent w/v

Honors Chemistry

What is the Lewis dot diagram for C2Cl2?

chemistry

if 2.2g of h2 and 1.25g of n2 are present, how many grams of nh3 will be produced

chemistry

What mass of ZnCl2 is needed to make 4 L of 1.8 M solution?

chemistry

who made (arranged) the modern periodic table?

chemistry

How could I determine if a white liquid contained lactose?

chemistry

What are the steps of protein synthesis starting with DNA?

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100