2 years ago

Calculate the molar mass of Cr4(P2O7)

Chemistry

1 answer:

Norma-Jean [14]2 years ago

7 0

Hey there!

Cr₄(P₂O₇)₃

Cr: 4 x 51.996 = 207.984

P: 6 x 30.97 = 185.82

O: 21 x 16 = 336

-------------------------------------

729.804 g/mol

The molar mass of Cr₄(P₂O₇)₃ is 729.804 g/mol.

Hope this helps!

You might be interested in

You are performing an experiment that uses 114Ag. 113Ag is radioactive, decays by beta-- emission and has a half-life of 21 minu

maxonik [38]

Answer: The 234.74 grams of sample should be ordered.

Explanation:

Let the gram of 114 Ag to ordered be $N_o$

The amount required for the beginning of experiment = 0.0575 g

Time requires to ship the sample = 4.2hour = 252 min(1 hr = 60 min)

Half life of the sample = ${t_{\frac{1}{2}}$ = 21 min

$\lambda =\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{21 min}=0.033 min^{-1}$

$\log[N]=\log[N_o]-\frac{\lambda t}{2.303}$

$\log[0.0575 g]=\log[N_o]-\frac{0.033 min^{-1}\times 252 min}{2.303}$

$N_o=234.74 grams$

The 234.74 grams of sample should be ordered.

4 0

2 years ago

Which elements did you include in your question?

SIZIF [17.4K]

Answer:

It should be all of them

Explanation:

It’s because it was in your question you wrote out

3 0

2 years ago

Help!!!!

V125BC [204]

Answer:D and C sorry if im wrong

Explanation:

8 0

2 years ago

Read 2 more answers

Do the molecules in a desk have energy?

Harrizon [31]

Everything requires energy to move. If the desk is moving, then it has energy.

6 0

2 years ago

Pls help me on this it’s past due ty

mihalych1998 [28]

Answer:

sorry

Explanation:

6 0

2 years ago