Chemistry, 19.11.2021 22:50, carolin7493
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1. El helio es un gas valioso utilizado en la industria, en investigaciones en las que se requiere baja
temperatura, en los tanques para buceo profundo y para inflar globos. ¿Cuántas moléculas de
sustancia de helio hay en 6,46 g de este gas?
2-. Calcula el número de átomos en 0,551 g de potasio.(MA K=39 g/mol)
3- Calcula la cantidad de moles de cloroformo(CHCI) en 198 g de cloroformo.
Datos (MA g/mol → C=12 , Cl=35,5).
4-¿Cuántos mol de átomos hay en 6 millones de átomos de este metal?
Answers: 1
Chemistry, 22.06.2019 03:30, jabper5522
At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k
Answers: 1
Chemistry, 22.06.2019 04:30, jocelynmarquillo1
Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:
Answers: 1
Chemistry, 22.06.2019 06:30, noathequeen
The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide
Answers: 3
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