Explain why is the nacl extracted with water
1. Explain how could you separate zinc chloride from SIO2?
2. Explain why is the NACL extracted with water three times as opposed to only once?
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Determine the molality of commercial HCL solution which is12.1M, has a density of 1.19 g/mL and is 37.2 wt% HCl.
At an initial pressure of 6.00atm a gas, expands from 10.0 liters to 12.00 liters against a constant external pressure of 3.00atm and in calories: (11-atm=24.217cal)
A student found that her mixture was 20%NACL, 15% NH4CL and 75% SIO2. Explain what did she most likely do incorrectly in her experiment?
Point P(3,1) lies on curve y=sqrt(x-2). If Q is point(x,sqrt(x-2)) on curve, then slope of secant line PQ correct to 6 decimal places when x = 2.99 is?
Explain how could you separate zinc chloride from SIO2? Explain why is the NACL extracted with water three times as opposed to only once?
Explain why does never weigh a hot object? Illustrate the principle of conservation of matter? How could you separate a mixture of cyclohexane and zinc chloride?
Calculate the weight of the watch glass and sample in grams if a 141-mg sample was placed on a watch glass that weighed 9,203g.
Determine the mean volume and the average deviation from the mean if a pipet delivers 10.04, 10.02, 10.08, and 10.06 ml inconsecutive trials.
A 10.0 mL sample of gastric juice obtained several hours after a meal in a hospital laboratory was titrated with 0.1 M NaOH to neutrality; 7.2 mL of NaOH was needed.
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