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Problem- 1- The laboratory manual specifies two types of errors in measurements. What are these errors? Briefly describe each kind and provide examples
2- What is meant by the terms (a) accuracy, (b) precision? Define and provide examples.
3- Define the term absolute uncertainty. Give an example
4- Give a definition and an example of relative uncertainty
5- Define density and discuss what it means for this property to be an intrinsic property of material.
6- Look and record the literature values for the densities of aluminum, lead, and steel.
Give your respond in scientific notation please provide detail solution for good grades
In a gas mixture, the partial pressures are nitrogen 0.559 ATM, oxygen 115 torr, and helium 0.296 mm Hg. What is the total pressure (in torr) exerted by the gas mixture
Before developing the dead-weight gauge, he worked in a mine shaft, and used a mercury manometer for measurements of pressure to more than 400 bar. Estimate the height of the manometer required.
If you have a stable isotope (Oxygen with a mass # of 18 and an atomic # of 8), when you bombard it with beta particles, the product is a Nitrogen with a mass # of 17 and an atomic # of 7 + a neutron. Why?
A sample of oxygen gas () was found to effuse at a rate equal to three times that of an unknown gas. The molecular weight of the unknown gas is __________ g/mol.
A solution is prepared by condensing a 4.00L of a gas at 27 degress and 748 mmHG pressure into 58g of benzene. calculate the freezing point of the solution.
a 13.6 sample of nh4no3 is dropped into a constant-pressure calorimeter containing 175 g of water at 23.5 c. what
Metals Covalently Bonded to Benzene, I've noticed that my book does not mention metals as a possible substituent for mono-substituted benzenes, but it doesn't begin to explain why
Find pH of A mixture formed by adding 44.0 mL of 2.5×10-2M HCl to 150mL of 1.5×10-2 M HI.
The problem is about a solution in second order that the original [A]o = 0.100M. 20% of the reaction is completed in 40 minutes. What is the rate constant? What is the half-life?
A student found that a brand B tablet would neutralize 0.011 moles of HCl per tablet. Which is the better buy, brand A or brand B? Why?
The solubility iof sodium chloride in water is 35.9 g NaCl/100 g of water at 25 degrees celsius. Calculate the mass percent and molality of NaCl in a saturated solution.
Find a corresponding criterion for processes at constant V and T. The new thermodynamic variable that is used to express this criterion is called the Helmholtz free energy
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