chemistry! URGENT

60,412 results, page 59

chemistry

NaOH(aq)+H3PO4(aq)¨Na3PO4(pq)+H2O(l) Please help.

Chemistry

What is the pH for the potassium propionate solution at the equivalence point?

chemistry

what is the reagent responsible for the formation of hydrogen sulfide?

Chemistry

What is the [H+] of a 0.1 M malonic acid with a Ka of 10^-9 solution? I thought it was just (Ka x Ca)^(0.5), but that doesn't get me a pH of 5.

chemistry

how can i know whether solution is acidic or not and then what type of acid?

Chemistry

HC2H3O2 + CH3(CH2)4OH (H2SO4)=?

chemistry

SiH3- planar or pyramidal geometric shape?

Chemistry

How many grams of H2SO4 are contained in 4.5L of .30 N sulfuric acid?

Chemistry

Use the standard reduction potentials in volts: Cu^2+ --> Cu+ +0.16;

chemistry

2.50x10 to the second power mL of 0.100M NaBr

Chemistry

How do you draw the lewis strusture for Cyanogen(C2N2)

Chemistry

Determine the solubility of FeS at 25 degrees Celsius

chemistry

What is the molarity of hcl is 35 ml is neutralized. By 500 ml of M NaOH?

chemistry

how much of 0.5normal fas is equal to molar

chemistry

The reactivity of the alkali metals increases in the order? A. Na, K, Li B. K, Na, Li C. Li, Na, K D. Li, K, Na

chemistry

how many moles of NaOH (aq) is contained in 10.0mL of vinegar?

Chemistry

What happens to the rate of a reaction if the temperature is decreased and why?

chemistry

what are the factors that determine the rate at which a soulute dissolves

Organic Chemistry

how to calculate specific observed rotation?

chemistry

15 GREM OF C6H12O6 WILL PRODUCE HOW MUCH CO2?

Science (Chemistry)

How many significant digits are in the number 63,000.0?

Chemistry

I don't know why on earth I don't remember how to do this, but I can't, and it's so simple. Calculate [H+] and [OH-] of a solution with a pH of 9.7 Thank you.

Chemistry

How many grams are in 8.2x10 to the power of 22 molecules of Fe2O3?

chemistry

How many molecules are in 0.495 mole of lactic acid?

chemistry

how do you calculate the normal boiling point of PCl3

chemistry

write a neutral specie which is isoelectronic chlorides.

chemistry

State 4 reason why ais is classified as a mixture.

Chemistry

What mass of CO2 could be formed from the reaction of 16 g of CH4 with 32 g of O2 ?

chemistry

What is the mass number of an atom of potassium that has 20 neutrons?

CHEMISTRY

ASSIGN FORMAL CHARGES TO FOLLOWING STRUCTRE, H-N-C-H3

Chemistry

Find the [OH-] of .196 M NaOH and .262 M NH4Cl

chemistry

150 ml M/10 Ba(MnO4)2 in acidic medium can oxidise what?

chemistry

10.3 gm NaBr is solved in 50 ml of water. What will be the molality of solution?

Chemistry

Find the strength of 2.45 gm of (H2SO4) in 250 ml of the sol.

Chemistry

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

Chemistry

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

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.

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