Mathematics

Mathematics, 13.07.2019 07:00, kelsea86

During a chemistry experiment kevin calculated the molar mass of sodium to be 23.4g the actual molar mass of sodium is 22.99g what is his percent error

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Chemistry, 23.06.2019 09:00, sammypaige08

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.

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Ateacher calculates the molar mass of sodium hydroxide as 37 g/mol. the true molar mass of sodium hydroxide is 40 g/mol. find the teachers percent error

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Chemistry, 20.07.2019 05:50, kathleendthomas

Given the atomic mass of select elements, calculate the molar mass of each salt. element molar mass (g/mol) beryllium (be) 9.012 magnesium (mg) 24.31 cobalt (co) 58.93 cadmium (cd) 112.41 bromine (br) 79.90 match the numbers to the appropriate blanks in the sentences below. make certain each sentence is complete before submitting your answer. hints 88.91 gmol 104.21 gmol 168.81 gmol 138.83 gmol 184.11 gmol 218.73 gmol 192.31 gmol 272.21 gmol 1. the molar mass of cobr2 is . 2. the molar mass of bebr2 is . 3. the molar mass of mgbr2 is . 4. the molar mass of cdbr2 is .

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Chemistry, 02.10.2019 20:30, rydersasser12

Clinical chemistry math, hemistry math - supplemental instruction molarity is defined as it is designated with the equivalent weight is the molar mass hydrogen or hydroxyl ions. nt is the molar mass of a substance divided by the number of replaceable ex. 1 nh,oh, molar mass = 35.00 g/mol ex.2 ca(oh)2, molar mass = 74.00 g/mol it is designated with the unit normality is defined as

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During a chemistry experiment kevin calculated the molar mass of sodium to be 23.4g the actual molar...

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