Home
Class 11
CHEMISTRY
Potassium selenate is isomorphous with p...

Potassium selenate is isomorphous with potassium sulphate and contains `50.0%` of `Se`. The atomic weight of `Se` is
a. `142`, b. `71`, c. `47.33`, d. `284`

A

142

B

71

C

47.33

D

284

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(2) SO_(4)` and `K_(2) SeO_(4)` are isomorphous.
`K_(2) SeO_(4)`
`implies 39 xx 2 + x + 64 = 142 + x`
`(142 x) g` of `K_(2) SeO_(4) implies x` of `Se`
`100 g` of `K_(2)SeO_(4) implies (x)/(142 + x) xx 100`
`:. (x)/(142 + x) xx 100 = 50`
`:. x = 142`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS AND MOLE CONCEPT

    CENGAGE CHEMISTRY|Exercise Exercises Assertion-Reasoning|10 Videos

  • SOME BASIC CONCEPTS AND MOLE CONCEPT

    CENGAGE CHEMISTRY|Exercise Exercises Integers|13 Videos

  • SOME BASIC CONCEPTS AND MOLE CONCEPT

    CENGAGE CHEMISTRY|Exercise Exercises Multiple Correct (Mole Concept In Solution)|15 Videos

  • S-BLOCK GROUP 2 - ALKALINE EARTH METALS

    CENGAGE CHEMISTRY|Exercise Ex 5.1 Objective|2 Videos

  • STATES OF MATTER

    CENGAGE CHEMISTRY|Exercise Exercises (Ture False)|25 Videos

Similar Questions

Explore conceptually related problems

The sulphate of a metal M contains 9.87% of M. The sulphate is isomorphous with ZnSO_(4).7H_(2)O . The atomic weight of M is

The sulphate of a metal M contains 9.87% of M , This sulphate is isomorphous with ZnSO_(4).7H_(2)O . The atomic weight of M is

Objective question (only one correct). I. Which of the following has least mass? a. 1 mol of S b. 3 xx 10^(23) atom of C c. 2 g atom of nitrogen d. 7.0 g of Ag ii. The simplest formula of a compound containing 50% of element A (atomic mass 10) and 50% of element B (atomic mass 20) is: a. AB b. A_(2) B c. A_(2) B_(3) d. AB_(3)

A 0.1 M solution of potassium sulphate, K_2SO_4 is dissolved to the extent of 90%. What would be its osmotic pressure at 27^@C ?

CENGAGE CHEMISTRY-SOME BASIC CONCEPTS AND MOLE CONCEPT-Exercises Single Correct
  1. The vapour density of chloride of an element is 39.5. The Ew of the el...

    Text Solution

    |

  2. The Mw of a oxide of an element is 44. The Ew of the element is 14. Th...

    Text Solution

    |

  3. Potassium selenate is isomorphous with potassium sulphate and contains...

    Text Solution

    |

  4. The Ew of an element is 13. It forms an acidic oxide which KOH forms a...

    Text Solution

    |

  5. 0.05 g of a piece of metal in dilute acid gave 24.62 mL of H(2) at 27^...

    Text Solution

    |

  6. An element A (atomic weight = 12) and B (atomic weight = 35.5) combine...

    Text Solution

    |

  7. If 1L of O(2) at 15^(@)C and 750 mm pressure contains N molecules, the...

    Text Solution

    |

  8. When 2 g of a gas A is introduced into an evacuated flask kept at 25^(...

    Text Solution

    |

  9. How many moles of ferric alum (NH(4))(2) SO(4) Fe(2) (SO(4))(3). 24 ...

    Text Solution

    |

  10. Suppose elements X and Y combine to form two compounds XY(2) and X(3)Y...

    Text Solution

    |

  11. In an experiment, 6.67 g of AlCl(3) was produced and 0.654 g Al remai...

    Text Solution

    |

  12. Nine volumes of gaseous mixture consisting of gaseous organic compound...

    Text Solution

    |

  13. 27 g of Al will react completely with…… g of O(2)

    Text Solution

    |

  14. 2 L of air formed 1915 mL of ozonised air when passed through Brodio'...

    Text Solution

    |

  15. n-Butance (C(4)H(10)) is produced by monobromation of C(2)H(6) followe...

    Text Solution

    |

  16. 1g of the carbonate of a metal was dissolved in 25mL of N-HCl. Te res...

    Text Solution

    |

  17. 5mL of N HCI, 20 mL of N//2 H(2)SO(4) and 30 mL of N//3 HNO(3) are mix...

    Text Solution

    |

  18. The Ew of H(3) PO(4) in reaction is Ca(OH)(2) + H(3) PO(4) rarr CaHP...

    Text Solution

    |

  19. 10 g of a sample of a mixture of CaCl(2) and NaCl is treated to precip...

    Text Solution

    |

  20. A gases mixture contains oxygen and nitrogen in the ratio 1 : 4 by wei...

    Text Solution

    |