Complete the folllowing blands in the equation as indicated- CaH2 s - 2H2O aq - CaOH2 s - 2H2 g a moles - 1 mole - - - b Grams- 42 g - - - - c Molecules - 6-02 - 1023 - - - -

CaH_2 (s) + 2H_2O (aq) → Ca(OH)_2 (s) + 2H_2 (g) (a) moles : 1 mole + 2 mole → 1 mole + 2 mole (b) Grams: 42 g + 36 g → 74 g + 4 g (c) Molecules : ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Mole Concept and Avogadro's Number

Complete the ...

Question

Complete the folllowing blands in the equation as indicated.
$C a H_{2} (s) + 2 H_{2} O (a q) \to C a (O H)_{2} (s) + 2 H_{2} (g)$
(a) moles : $1 m o l e + \dots \to \dots + \dots$
(b) Grams: $42 g + \dots \to \dots + \dots$
(c) Molecules : $6.02 \times 10^{23} + \dots \to \dots + \dots$

Open in App

Solution

$C a H_{2} (s) + 2 H_{2} O (a q) \to C a (O H)_{2} (s) + 2 H_{2} (g)$

(a) moles : $1 m o l e + 2 m o l e \to 1 m o l e + 2 m o l e$

(b) Grams: $42 g + 36 g \to 74 g + 4 g$

(c) Molecules : $6.02 \times 10^{23} + 2 \times 6.02 \times 10^{23} \to 6.02 \times 10^{23} + 2 \times 6.02 \times 10^{23}$

Suggest Corrections

Similar questions

Q. 1 mole =

6.02 \times 10^{23}

atoms and 1 mole =

6.02 \times 10^{23}

, molecules. How can molecules and atoms be equal?

Four grams of caustic soda contains :

(a) $6.02 \times 10^{23} a t o m s o f i t,$
(b) 4 g atom of sodium,
(c) $6.02 \times 10^{22}$ molecules

(d) 4 moles of NaOH.

Q. Statement 1: The number of gram molecules of oxygen in

6.02 \times 10^{24} C O

molecules is 5.0.
Statement 2: The value of Avogadro number is

6.02 \times 10^{23}

The number of molecules present in $4.25 g r a m s$ of $N H_{3}$ is approximately:

Q. Anushka, Karuna, Sohan and Krishna having a container with 6 moles of F atoms, 6 moles of

F_{2}

molecules,

12.044 \times 10^{23}

number of F atoms and

6.022 \times 10^{23}

number of

F_{2}

molecules respectively.
Which among the four will have the same amount of F atoms in grams?

Join BYJU'S Learning Program

Complete the folllowing blands in the equation as indicated. CaH2(s)+2H2O(aq)→Ca(OH)2(s)+2H2(g) (a) moles : 1mole+⋯→⋯+⋯ (b) Grams: 42g+⋯→⋯+⋯ (c) Molecules : 6.02×1023+⋯→⋯+⋯

CaH2(s)+2H2O(aq)→Ca(OH)2(s)+2H2(g) (a) moles : 1 mole+2 mole→1 mole+2 mole (b) Grams: 42 g+36 g→74 g+4 g (c) Molecules : 6.02×1023+2×6.02×1023→6.02×1023+2×6.02×1023

Complete the folllowing blands in the equation as indicated.
$C a H_{2} (s) + 2 H_{2} O (a q) \to C a (O H)_{2} (s) + 2 H_{2} (g)$
(a) moles : $1 m o l e + \dots \to \dots + \dots$
(b) Grams: $42 g + \dots \to \dots + \dots$
(c) Molecules : $6.02 \times 10^{23} + \dots \to \dots + \dots$

$C a H_{2} (s) + 2 H_{2} O (a q) \to C a (O H)_{2} (s) + 2 H_{2} (g)$

(a) moles : $1 m o l e + 2 m o l e \to 1 m o l e + 2 m o l e$

(b) Grams: $42 g + 36 g \to 74 g + 4 g$

(c) Molecules : $6.02 \times 10^{23} + 2 \times 6.02 \times 10^{23} \to 6.02 \times 10^{23} + 2 \times 6.02 \times 10^{23}$