Input interpretation
![strontium iodate | molar mass](../image_source/076754d1aa0b0c3d442bb193de21c3df.png)
strontium iodate | molar mass
Result
![Find the molar mass, M, for strontium iodate: M = sum _iN_im_i Plan: • Write the chemical formula and gather atomic masses from the periodic table. • Determine values for N_i and m_i using these items. • Finally, compute the mass. Write the chemical formula: SrIO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i I (iodine) | 1 O (oxygen) | 3 Sr (strontium) | 1 Look up the atomic mass, m_i, in g·mol^(-1) for each element in the periodic table: | N_i | m_i/g·mol^(-1) I (iodine) | 1 | 126.90447 O (oxygen) | 3 | 15.999 Sr (strontium) | 1 | 87.62 Multiply N_i by m_i to compute the mass for each element. Then sum those values to compute the molar mass, M: Answer: | | | N_i | m_i/g·mol^(-1) | mass/g·mol^(-1) I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 Sr (strontium) | 1 | 87.62 | 1 × 87.62 = 87.62 M = 126.90447 g/mol + 47.997 g/mol + 87.62 g/mol = 262.52 g/mol](../image_source/c36609786fb9d809b7e726ae6086b1b4.png)
Find the molar mass, M, for strontium iodate: M = sum _iN_im_i Plan: • Write the chemical formula and gather atomic masses from the periodic table. • Determine values for N_i and m_i using these items. • Finally, compute the mass. Write the chemical formula: SrIO_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i I (iodine) | 1 O (oxygen) | 3 Sr (strontium) | 1 Look up the atomic mass, m_i, in g·mol^(-1) for each element in the periodic table: | N_i | m_i/g·mol^(-1) I (iodine) | 1 | 126.90447 O (oxygen) | 3 | 15.999 Sr (strontium) | 1 | 87.62 Multiply N_i by m_i to compute the mass for each element. Then sum those values to compute the molar mass, M: Answer: | | | N_i | m_i/g·mol^(-1) | mass/g·mol^(-1) I (iodine) | 1 | 126.90447 | 1 × 126.90447 = 126.90447 O (oxygen) | 3 | 15.999 | 3 × 15.999 = 47.997 Sr (strontium) | 1 | 87.62 | 1 × 87.62 = 87.62 M = 126.90447 g/mol + 47.997 g/mol + 87.62 g/mol = 262.52 g/mol
Unit conversion
![0.2625 kg/mol (kilograms per mole)](../image_source/9f82431c2d785fd4b7a0dfcaaa4205c2.png)
0.2625 kg/mol (kilograms per mole)
Comparisons
![≈ 0.36 × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/c93a6ab1a933f099d9148404a00deab8.png)
≈ 0.36 × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 1.4 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/ba3ce74b58bcccb68cccc7339c2e4076.png)
≈ 1.4 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 4.5 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/59b76982d7d48dea60546f6a5508582a.png)
≈ 4.5 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 4.4×10^-22 grams | 4.4×10^-25 kg (kilograms) | 263 u (unified atomic mass units) | 263 Da (daltons)](../image_source/a980a06f445bcd4535a41f0de067126b.png)
Mass of a molecule m from m = M/N_A: | 4.4×10^-22 grams | 4.4×10^-25 kg (kilograms) | 263 u (unified atomic mass units) | 263 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 263](../image_source/00b01135a6120826c27662c2b3268b5d.png)
Relative molecular mass M_r from M_r = M_u/M: | 263