3 years ago

How many significants are in 54.0047

Chemistry

1 answer:

erik [133]3 years ago

6 0

Answer:

There are 6

Explanation:

The significant figures in that number are 5 4 0 0 4 7

Hope this helps:)

You might be interested in

Which best describe the tyndall effect

Svet_ta [14]

The answer would be A

6 0

3 years ago

What is the empirical formula for a compound if a sample contains 1. 0 g of S and 1. 5 g of O? SO SO3 S2O2 S2O3.

Tcecarenko [31]

The empirical formula of the given compound is $\bold{SO_3}$ .

The correct option is B.

<h3>What is an empirical formula?</h3>

The empirical formula of a chemical compound is the simplest whole-number ratio of atoms contained in the substance.

Given,

1.0 g of S

1.5 g of O

To calculate the empirical formula, we will divide the masses of the elements by their atomic weight.

For sulfur

$\bold{\dfrac{1.0}{32} =0.03125\; mol}$

For oxygen

$\bold{\dfrac{1.5}{16} =0.09375\; mol}$

Now, divide the greater value of mole came by the smaller value

$\bold{\dfrac{0.09375\; mol}{0.03125\;mol} = 3}$

Thus, the empirical formula for the given compound is 1 for S and 3 for O

$\bold{SO_3}$

Learn more about empirical formula, here:

brainly.com/question/11588623

7 0

2 years ago

The equilibrium constant, k, for a redox reaction at 25° c is 7.3 × 107. what is the value of e° if the overall reaction transfe

Novay_Z [31]

Answer:

0.23 V.

Explanation:

∴ ΔG° = -RTlnK = -(8.314 J/mol)(298 K) ln(7.3 × 10⁷) = - 44.86 x 10³ J/mol.

∴ E° = - ΔG°/nF = - (- 44.86 x 10³ J/mol)/(2 x 96500 s.A/mol) = 0.2324 V ≅ 0.23 V.

5 0

3 years ago

Calculate the mass of 140g of Cl2

spin [16.1K]

Answer:

6amu

Explanation:

mass=proton+neutron

mass of cl2=2(16+16)=64amu

8 0

3 years ago

Object is placed on a triple beam balance, and a student moves the sliders until it is balanced with the pointer resting at the

Sveta_85 [38]

The answer is A I hope this helps :)

4 0

3 years ago

Read 2 more answers