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3 years ago

Express 0.032 Ms in scientific notation using base units

Chemistry

1 answer:

bixtya [17]3 years ago

6 0

0.032 Ms = 3.2 × 10^4 s

<em>Step 1</em>. Convert the number to scientific notation.

0.032 = 3.2 × 10^(-2)

<em>Step 2</em>. Convert the measurement to base units.

3.2 × 10^(-2) Ms × (10^6 s/1 Ms) = 3.2 × 10^4 s

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209.3 Joules require to raise the temperature from 10 °C to 15 °C.

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Q = m × c × ΔT

Given data:

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

The simplest whole number ratio of atoms in a compound is the empirical formula of a chemical compound in chemistry. Sulfur monoxide's empirical formula, SO, and disulfur dioxide's empirical formula, S2O2, are two straightforward examples of this idea. As a result, both the sulfur and oxygen compounds sulfur monoxide and disulfur dioxide have the same empirical formula.

<h3>How to find the empirical formula?</h3>

Convert the given masses of phosphorus and bromine into moles by multiplying the reciprocal of their molar masses. The molar masses of phosphorus and bromine are 30.97 and 79.90 g/mol, respectively.

Moles phosphorus = 0.903 g phosphorus $\frac{mol phosphorus}{ 30.97 g phosphorus}$ = 0.0293 mol

Moles bromine 6.99 g bromine $\frac{mol bromine}{79.90 g bromine}$ =0.0875 mol

The preliminary formula for compound is P0.0293Bro.0875. Divide all the subscripts by the subscript with the smallest value which is 0.0293. The empirical formula is P1.00Br2.99 ≈ P₁Br3 or PBr3

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