Question
Which measurement is more precise 4.0g or 4.00g?

Answer

4.00 is more precise.

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Similar questions

Describe the effect of:
addition of $\text{H}_2$ on the equilibrium of the reaction:
$2\text{H}_2\text{ (g) + CO (g)}\rightleftharpoons\text{CH}_3\text{OH (g)}$
How many inner transition elements are known?
At 473 K , equilibrium constant $\mathrm{K}_{\mathrm{c}}$ for decomposition of phosphorus pentachloride, $\mathrm{PCl}_5$ is $8.3 \times 10^{-3}$. If decomposition is depicted as,
$\text{PCl}_5\text{ (g)}\rightleftharpoons\text{PCl}_3\text{ (g) + Cl}_2\text{ (g)}\ \Delta_\text{r}\text{H}^\ominus=124.0\text{ kJ mol}^{-1}$
what would be the effect on Kc if
  1. more PCl5 is added
  2. pressure is increased
  3. the temperature is increased?
Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:
$ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ + \\ \text{C}_6\text{H}_6+ \text{CH}_3\text{ CO}\rightarrow \text{C}_6\text{H}_5\text{COCH}_3$
In exothermic reaction if temperature is increased what will be the effect on equilibrium constant?
Write the expression for the equilibrium constant ($\text{K}_{\text{c}}$) for the reaction:
$\text{CH}_3\text{COOC}_2\text{H}_5(\text{aq})+\text{H}_2\text{O(l)}\\\rightleftharpoons\text{CH}_3\text{COOH}
(\text{aq})+\text{C}_2\text{H}_5\text{OH}(\text{aq})$
At 473 K , equilibrium constant $\mathrm{K}_{\mathrm{c}}$ for decomposition of phosphorus pentachloride, $\mathrm{PCl}_5$ is $8.3 \times 10^{-3}$. If decomposition is depicted as,
$\mathrm{PCl}_5(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_3(\mathrm{~g})+\mathrm{Cl}_2(\mathrm{~g}) \Delta_{\mathrm{r}} \mathrm{H}^{\ominus}=124.0 \mathrm{~kJ} \mathrm{~mol}{ }^{-1}$
write an expression for $\mathrm{K}_{\mathrm{c}}$ for the reaction.
Which of the following reactions will get affected by increasing the pressure? Also, mention whether change will cause the reaction to go into forward or backward direction.
$\text{2H}_2\text{ (g) + CO}\text{ (g)}\rightleftharpoons\text{CH}_3\text{OH (g)}$
Suppose the length of a cardboard has been reported to be 31.24cm. What is the minimum uncertainty implied in this measurement?
Arrange $I ^{-}, Br ^{-}, Cl ^{-}$and $F ^{-}$in reducing strength.