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Consider the chemical equation: 2NaBr + Caf
+ 2NaF + CaBra.
The molar ratio between NaBr and CaF2 is
molar ratio between
NaBr and NaF is
the molar ratio, molar ratio between NaBr and
CaBr2 is
, the molar ratio.
*Note, if a ratio results in two of the same number, 3:3 for example, we reduce it to
1:1 and call it a "one-to-one ratio.
Consider the chemical equation: 2NaBr + Caf
+ 2NaF + CaBra.
The molar ratio between NaBr and CaF2 is
molar ratio between
NaBr and NaF is
the molar ratio, molar ratio between NaBr and
CaBr2 is
, the molar ratio.
*Note, if a ratio results in two of the same number, 3:3 for example, we reduce it to
1:1 and call it a "one-to-one ratio.
Using pka valuesbof glutamic acid what is the net charge of the predominent form at each of these ph
An organic compound X contains 40% carbon, 6.7% hydrogen and the rest oxygen. The vapour density of X is 30. The compound reacted with a compound Y and a colourless gas Z which turn limewater milky. On boiling under reflux, the mixture of X and W, gives a sweet smelling liquid G was formed.i. determine the empirical and molecular formula of X.ii. identify Y, Z, W and G.iii. Give the formula of the functional group present in Xiv. Deduce the structure of the compound Xv. Name the reaction which take place between X and W, and write the equation for the reaction of X and W.
An organic compound X contains 40% carbon, 6.7% hydrogen and the rest oxygen. The vapour density of X is 30. The compound reacted with a compound Y and a colourless gas Z which turn limewater milky. On boiling under reflux, the mixture of X and W, gives a sweet smelling liquid G was formed.i. determine the empirical and molecular formula of X.
CH4(g) + 2H2S(g) CS2(g) + 4H2(g)
- Analyse the effects of the monosubstituents -OH, -Cl, -NO2 and -CH3 on the benzene ring and predict how they direct an attacking species (such as NO2+, CH3+, Br2 and SO3) to either the 2, 3 or 4 positions on the ring during substitution. Include within this section, the names of substituted benzene compounds, indicating how the name is based upon the functional group(s) present and the different positions on the benzene ring.
A 400 mL buffer solution was prepared by reacting sodium acetate, CH3COONa, with 1.00 M acetic acid, CH3COOH, with a pH of 4.56 Calculate the mass of CH3COONa required to prepare the solution. Ka CH3COOH= 1.75 x 10-5
What happens to the blade as it was placed on water, kerosene, and ethanol? Differentiate them. Why is this phenomenon possible?
draw the resonance structure of cyanate ion. out of them which one is less important as a resonance structure and why?
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