State concentration was dissolved in hcl

Assignment Help Chemistry
Reference no: EM13173987

Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ?g/mL Ca standard solution and diluted to 200.0 mL. Find the weight percent of Ca in the rock sample and the associated uncertainty from the x-intercept using the method of least squares. Unknown (mL) / Standard (ml) / Final Volume (ml) / Emission Intenisty 10 / 0 / 200 / 221 10 / 5 / 200 / 407 10 / 10 / 200 / 631 10 / 15 / 200 / 825 10 / 20 / 200 / 1015

Reference no: EM13173987

Questions Cloud

State electrolytic cell that contains a molten : How many grams of thallium may be formed by the passage of 57.5 amps for 1.34 hours through an electrolytic cell that contains a molten
Calculate the mass in grams for an iron bar : Calculate the mass in grams for an iron bar that loses 2.72 when its temperature drops from 242 to 72.
State how many amps are required to produce : How many amps are required to produce 28.7 g of lithium metal from a sample of molten lithium chloride
What is the final temperature of both the water and metal : A metal sample weighing 34.526 g was heated to 98.0 C then quickly transferred into Styrofoam cup calorimeter containing 74.365 g of distilled water at a temperature of 27 C. The temperature of the water in the cup increased and stabilized at 29 C..
State concentration was dissolved in hcl : Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ?g/mL Ca standard solution and diluted to ..
Determine how much heat is evolved or absorbed : Determine how much heat is evolved or absorbed when 30.0 of lithium iodide completely dissolves in water.
Which anions generally form percipitates : which anions generally form percipitates? what are the exceptions?
Compute how many kilograms of h it takes to electrify : Calculate how many kilograms of H2 it takes to electrify an average home for a month. Assume there are 30 days in a month. (1 Whr of electricity = 3600 J) Standard Values
How many mols of hydrogen are produced from the reaction : How many mols of hydrogen are produced from the reaction of .558 mols of zinc with an excess of hydrochloric acid?

Reviews

Write a Review

Chemistry Questions & Answers

  What minimum angle relative to the centerline perpendicular

Determine at what minimum angle relative to the centerline perpendicular to the doorway can someone outside the room hear no sound?

  What volume will a mixture occupy

What volume will a mixture of 0.65 mole H2 and 0.63 mole Kr occupy at 741 torr and 53.0 degrees celcuis

  How much of the other reagent is left over

Consider the following reaction:   3CaCO3 + 2FePO4 = Ca3(PO4)2 + Fe2(CO3)3  a) which of the following reagents is the limiting reagent?

  The freezing point depression constant kf

The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water.

  Which has the lowest freezing point

Which has the lowest freezing point: CaF2, (NH4)3PO4, C6H12O6, or NaNO3?

  Calculate the amount of heat (in kj) associated

Consider the following equation: CO + 2 H2 → CH3OH ?H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2.

  What is the molar heat of vaporization of nitrogen

In one experiment, the mass of water is 93.0 grams, the initial temperature of the water is 67.2oC, the mass of liquid nitrogen added to the water is 57.8 grams, and the final temperature of the water, after the liquid nitrogen has vaporized, is 3..

  What is the [h+] and what is the ph

A solution was prepared by mixing 70ml of 4.00 mol/L HCl and 30.0 mL of 8.00 mol/L HNO3. Water was then added until the final volume was 500ml. What is the [H+] and what is the pH ?

  Calculate the molar solubility of lead thiocyanate

Lead thiocyanate, rm Pb(SCN)_2, has a K_sp value of 2.00 times 10^{-5}.Calculate the molar solubility of lead thiocyanate in 1.00 it M rm KSCN.

  How many grams of water at 0oc could be frozen

How many grams of water at 0oC could be frozen to ice at 0oC by the evaporation of 493 grams of isopropyl alcohol?

  What is the percent by mass of a solution

what is the percent by mass of a solution on made by dissolving 163 grams of table sugar in 755 grams of water.

  Calculate the diameter of a round swimming pool

A. Epinephrine, C9H13NO3, has a concentration of 10-10 M in circulating blood. Calculate the diameter of a round swimming pool with a water depth of 2.0 M that would be needed to dissolve 1.0 g (about a teaspoon) of epinephrine.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd