Chemistry, asked by chetan1580, 1 year ago

calculate the relative molecular mass of

1) K2Cr2O7

2) (CH3COO)2 pb

{ ATOMIC MASS OF K=39; CR=52;O=16;C=12;H=1;Pb=207}.

Answers

Answered by isher200

2

Answer:

1.

3 9×2 + 52×2+16×7=78+104+112=294

2.

(12+1+12+16+16)^2+207

=57×2+207

=114+207

=321

Previous Question

Next Question

Similar questions

Math, 6 months ago

liguid as gases are measured by...

Science, 6 months ago

Question 6: Situation- My Science project group has 6 members, including me. They all are very quick with understanding concepts and experiments. I'm the only one who is usually slow. I really can't seem to keep up. What should I do? Response- a) No.8 b) No.5 c) No.4 d) No 2...

Physics, 6 months ago

If 54 kilojoules of heat is added to 1.5 kilograms of aluminum 20 will be the final temperature of the aluminum? ( Scheme 0.9 kJ/kg-C) (A) 20°C (B) 24°C (C) 40°C (D) 60°C...

Math, 1 year ago

The angles in degrees subtended at the centre of a circle of radius 3 units by an arc of length 1 unit, is:...

Physics, 1 year ago

explain V= u+at dimensionally...

Biology, 1 year ago

what is angiosperm full detail...

History, 1 year ago

what is the name of telephone...

India Languages, 1 year ago

i. love. you. all answer my queston please. write in. telugu language . a letter. to your friend. say. in letter. that you. have. visited to. this. down. picture. word place...