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Get college assignment help at uniessay writers What is the molecular formula of the compound witg empirical formula C5H80 and molar mass 336.5g mol-1

Metallic COpper is formed when aluminum reacts with copper(ii) sullfat. How

Metallic COpper is formed when aluminum reacts with copper(ii) sullfat. How many grams of metallic copper can be obtained when 54.0 G 0f Al react with 319 G of CuSO4?

Calculate the sample weight of liquid bleach containing 5.0% by weight

Calculate the sample weight of liquid bleach containing 5.0% by weight of NaOCl that would oxidize enough I- to consume 0.80 mL of 0.15 M sodium thiosulfate

give an explanation for how calmagite works as an indicator for

give an explanation for how calmagite works as an indicator for the titration of magnesium ion with EDTA. Explain why the water sample was buffered before it was titrated with EDTA.

a gas mixture with a total pressure of 745 mmHg contains

a gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 265 mmHg; Ar, 121 mmHg; and )2, 168 mmHg. The mixture also contains helium gas. what is the partial pressure of the helium gas?

What is the net ionic equation for the reaction of NaHSO3

What is the net ionic equation for the reaction of NaHSO3 and KIO3?

How much heat is required to warm 1.30 L of water

How much heat is required to warm 1.30 L of water from 20.0^circ C to 100.0 ^circ {rm C}? (Assume a density of {1.0;{rm {g}}}/{{rm {mL}}} for the water.)

How many moles of ions are in 1.60 mol of K2SO4?

How many moles of ions are in 1.60 mol of K2SO4?

1)If 100.mL of water is added to 25 mL of 5.0

1)If 100.mL of water is added to 25 mL of 5.0 M NaCl, what is the final concentration? 2)What is the pH of solution with [OH-]=2.0×10^-10 M ? 3)In a molecule with a symmetrical arrangement of polar bonds, the overall molecule is: a) highly polar b)somewhat polar c) strongly reverse polar d)reverse polar e) non polar 4)what is the functional group of an amino acid would be in the ionized state at high pH?

Sodium oleate HCL

Sodium oleate HCL

A solution is prepared by dissolving 0.2 mole of sodium ethanoate

Get college assignment help at uniessay writers A solution is prepared by dissolving 0.2 mole of sodium ethanoate (CH3COONa) and 0.3 mole of ethanoic acid (CH3COOH) in 500 ml of water at 25 C. pKa of ethanoic acid is 4.7.

A sample of argon gas has a volume of 725 ml

A sample of argon gas has a volume of 725 ml at a pressure of 1.30 atm and a temperature of 140 degrees Celsius.What is the volume of the gas in milliliters when the pressure and temperature of the gas sample are changed to 670 mmHg and 301 K ? V1 equals what?

A sample of gas has an initial volume of 2.6 at

A sample of gas has an initial volume of 2.6 at a pressure of 748 . If the volume of the gas is increased to 4.0 , what will the pressure be? (Assume constant temperature.)

If K_b for NX_3 is 3.5×10−6, what is the pOH of

If K_b for NX_3 is 3.5×10−6, what is the pOH of a 0.175 M aqueous solution of NX_3?

How much heat is required to warm 1.70 kg of sand

How much heat is required to warm 1.70 kg of sand from 30.0 Celsius to 100.0 Celsius?

FOR THE FOLLOWING PROCESS,CALCULATE THE CHANGE IN INTERNAL ENERGY OF THE

FOR THE FOLLOWING PROCESS,CALCULATE THE CHANGE IN INTERNAL ENERGY OF THE SYSTEMAND DETERMINE WHETHER THE PROCESS IS ENDOTHERMIC OR EXOTHERMIC:ABALLOON IS HEATED BY ADDING 900JOULES OF HEAT.IT EXPANDS,DOING 422JOULES OF WORK ON THE ATMOSPHERE.A 50-GRAMS SAMPLE OF WATER IS COOLED FROM 30c TO 15C,THEREBY LOSING APPROXIMATELY 3140JOULES OF HEAT.CHEMICAL REACTION RELEASES 8.65KJOULES OF HEAT AND DOES NO WORK ON THE SURROUNDING

What volume (mL) of 7.48 x 10-2 M perchloric acid can

What volume (mL) of 7.48 x 10-2 M perchloric acid can be neutralized with 115 mL of 0.244 M sodium hydroxide

Suppose 100.0 mL of 0.50 M HCl and 100.0 mL of

Suppose 100.0 mL of 0.50 M HCl and 100.0 mL of 0.50 M NaOH, both initially at 24.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 27.4°C. Assuming that the solutions have the same heat capacity as pure water, compute the heat released (in kJ).

Calculate the final Celsius temperature when 105 of chlorine gas at

Calculate the final Celsius temperature when 105 of chlorine gas at 50 is heated to give a volume of 170 . Assume that the pressure remains constant.

what chemical reaction should be used to make a specific color

what chemical reaction should be used to make a specific color paint that has at least 2 reactants?

One mole of Ar initially at 325 K undergoes an adiabatic

One mole of Ar initially at 325 K undergoes an adiabatic expansion against a pressure P external = 0 from a volume of 10.5 L to a volume of 92.0 L. Calculate the final temperature using the ideal gas law and van der Waals equations of state. Assume that Cvm = 3/2 R and the van der waals parameters for Argon are a = 1.355 dm6bar/mol2 and b = 0.0320 dm3/mol. Correct final temperatures should come to 325 K and 324 K.

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