Input interpretation
![1-(trimethylsilyl)-1-propyne | molar mass](../image_source/522c49c661831bdd2a976408f5ed702c.png)
1-(trimethylsilyl)-1-propyne | molar mass
Result
![Find the molar mass, M, for 1-(trimethylsilyl)-1-propyne: 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: CH_3C congruent CSi(CH_3)_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 6 H (hydrogen) | 12 Si (silicon) | 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) C (carbon) | 6 | 12.011 H (hydrogen) | 12 | 1.008 Si (silicon) | 1 | 28.085 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) C (carbon) | 6 | 12.011 | 6 × 12.011 = 72.066 H (hydrogen) | 12 | 1.008 | 12 × 1.008 = 12.096 Si (silicon) | 1 | 28.085 | 1 × 28.085 = 28.085 M = 72.066 g/mol + 12.096 g/mol + 28.085 g/mol = 112.247 g/mol](../image_source/0b612fe9b9190b5c7585ae95b91f0a1d.png)
Find the molar mass, M, for 1-(trimethylsilyl)-1-propyne: 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: CH_3C congruent CSi(CH_3)_3 Use the chemical formula to count the number of atoms, N_i, for each element: | N_i C (carbon) | 6 H (hydrogen) | 12 Si (silicon) | 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) C (carbon) | 6 | 12.011 H (hydrogen) | 12 | 1.008 Si (silicon) | 1 | 28.085 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) C (carbon) | 6 | 12.011 | 6 × 12.011 = 72.066 H (hydrogen) | 12 | 1.008 | 12 × 1.008 = 12.096 Si (silicon) | 1 | 28.085 | 1 × 28.085 = 28.085 M = 72.066 g/mol + 12.096 g/mol + 28.085 g/mol = 112.247 g/mol
Unit conversion
![0.11225 kg/mol (kilograms per mole)](../image_source/2eecec939eb964e7ac4c7f8940a0f035.png)
0.11225 kg/mol (kilograms per mole)
Comparisons
![≈ ( 0.16 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )](../image_source/18406a7a1712b4ea2a28d7d5c3957399.png)
≈ ( 0.16 ≈ 1/6 ) × molar mass of fullerene ( ≈ 721 g/mol )
![≈ 0.58 × molar mass of caffeine ( ≈ 194 g/mol )](../image_source/2e513c611d0a073d7cb8cc39b0ee7e34.png)
≈ 0.58 × molar mass of caffeine ( ≈ 194 g/mol )
![≈ 1.9 × molar mass of sodium chloride ( ≈ 58 g/mol )](../image_source/dc6389b6a904287f1faf27ab1df6df6c.png)
≈ 1.9 × molar mass of sodium chloride ( ≈ 58 g/mol )
Corresponding quantities
![Mass of a molecule m from m = M/N_A: | 1.9×10^-22 grams | 1.9×10^-25 kg (kilograms) | 112 u (unified atomic mass units) | 112 Da (daltons)](../image_source/52d43dc02bf764ed5100968b34f3a193.png)
Mass of a molecule m from m = M/N_A: | 1.9×10^-22 grams | 1.9×10^-25 kg (kilograms) | 112 u (unified atomic mass units) | 112 Da (daltons)
![Relative molecular mass M_r from M_r = M_u/M: | 112](../image_source/9215f5b33db8de1d05881e5eae26bbe7.png)
Relative molecular mass M_r from M_r = M_u/M: | 112