Chemistry, 06.03.2022 09:20, kimboblack4192
2. Chalk is composed of Calcium, Carbon and Oxygen. In order to find the molar mass of chalk you need to add one calcium, one carbon and three oxygen atoms.
Mass of calcium: g
Mass of carbon: g
Mass of oxygen: g x3 = g
Total molar mass: g/mol
3. Initial mass of one piece of chalk and record your results: __23.3_g
4. Find the final mass of the chalk (g) used to write your names: __13.3__g
5. Determine the amount of chalk (g) used to write your names: g (Initial-Final)
6. Convert the amount of grams of chalk (CaCO3) to moles. (remember to use the molar mass)
7. Now convert the amount of moles to atoms. (remember 1mol=6.02x1023 atoms)
Answers: 2
Chemistry, 22.06.2019 09:00, mercymain1014
An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2oβ2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10β2 g lioh b) 1.17 x 10β1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh
Answers: 1
Chemistry, 22.06.2019 22:00, notearslefttocry14
Imagine one batch of soup (batch βaβ) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch βbβ) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.
Answers: 2
2. Chalk is composed of Calcium, Carbon and Oxygen. In order to find the molar mass of chalk you nee...
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