Explain mixture of anhydrous na2so4 and the decahydrate

Reference no: EM13491751

1.285g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.393g in mass. What is the percent, by mass, of Na2SO4*H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate?

Reference no: EM13491751

Questions Cloud

Determine the increase in net operating income : Raner, Harris, & Chan is a consulting firm that specializes in information systems for medical and dental clinics. The firm has two offices-one in Chicago and one in Minneapolis. The firm classifies the direct costs of consulting jobs as variable ..

Compute how much charge will flow from the battery : A 2700 pF air-gap capacitor is connected to a 7.5 V battery. If a piece of mica is placed between the plates, how much charge will flow from the battery

Have you worked as part of a team before : First you just need to document your reactions to the presentation. For example the presenter mentioned skills identified as being desirable for employees.

Explain a researcher carried out the following experiment : To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 4.8- bulb, then filled it with the gas at 1.40atm and 20.0 degC and weighed it again. The difference in mass was 7.9g . Identify the gas. Expr..

Explain mixture of anhydrous na2so4 and the decahydrate : 1.285g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.393g in mass. What is the percent, by mass, of Na2SO4*H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate

Define the enthalpy of activation of a first order reaction : The enthalpy of activation of a first order reaction is 123kj/mol. The rate constant at 80 C is 1.73x10^-2 s^-1. What is the rate constant at 35 C. (R=8.31 j/mol K

Calculate the downward force exerted by the hammer : A 4.9-N hammer head is stopped from an initial downward velocity of 3.2 m/s in a distance of 0.45 cm by a nail in a pine board. Calculate the downward force F exerted by the hammer head on the nail while the hammer head is in contact with the nail a..

Explain oxidized form of nicotinamide adenine dinucleotide : a. exchanges energy when a phosphate bond is hydrolyzed b. the high energy form of coenzyme A c. the oxidized form of nicotinamide adenine dinucleotide.

How much energy is transferred by the engine : A 287kg box is pulled at a constant speed by the little engine. The box moves a distance of 2.4 m across the horizontal surface. (µk=.20), How much energy is transferred by the engine

User Account

All Pages