Home
Class 11
CHEMISTRY
27 g of Al will react completely with…… ...

`27 g` of `Al` will react completely with…… `g` of `O_(2)`

A

`8 g`

B

`10 g`

C

`24 g`

D

`49 g`

Text Solution

Verified by Experts

The correct Answer is:
C
`4Al + 3O_(2) rarr 2Al_(2)O_(3)`
`4 xx 28 g "of" Al implies 3 xx 32 g "of" O_(2)`
`27 g "of" Al implies (3 xx 32)/(4 xx 27) xx 27 implies 24 g`
Promotional Banner

Similar Questions

Explore conceptually related problems

How many grams of Cl_(2) are required to completely react with 0.4 g of H_(2) to yield HCl? Also calculate the amount of HCl formed.

Nitrogen and hydrogen react to form ammonia according to the reaction: N_(2)(g)+3H_(2)(g)to2NH_(3)(g) If 1000 g H_(2) react with 2000g of N_(2) (i) Identify the limiting reagent. (ii) Calculate the mass of ammonia (NH_(3)) which will be formed.

For a first order reaction involving decomposition of N_(2) O_(5) the following information is available : 2N_(2)O_(5)(g) rarr 4NO_(2) (g) +O_(2)(g) Rate =k [N_(2)O_(5)] N_(2)O_(5)(g) rarr 2NO_(2)(g) +1//2 O_(2) (g) Rate =k [N_(2)O_(5)) Which of the following expressions is true ?

Marshall's acid (H_(2)S_(2)O_(8)) or peroxodisulphuric acid is prepared by the electrolytic oxidation of mmol H_(2)SO_(4) as : 2H_(2)SO_(4) rarr H_(2)S_(2)O_(8)+2H^(o+)+2e^(-) O_(2)(g) and H_(2)(g) are obtained as byproducts. In such electrolysis 4.48L of H_(2)(g) and 1.12L or O_(2)(g) were produced at STP . The weight of H_(2)S_(2)O_(8) formed is a. 9.7g" "b.19.4g" "c.14.5g" "d.29.1g