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Get college assignment help at uniessay writers A stock solution is prepared by adding 24 mL of 1.2 M Na3PO4 to enough water to make 79 mL. What is the PO43- concentration of 25 mL of the stock solution?

Write the condensed electron configurations for the {rm V} atom

Write the condensed electron configurations for the {rm V} atom

What is the buffer capacity of 100 mL of 0.1 M

What is the buffer capacity of 100 mL of 0.1 M HClO2 and 100 mL of 0.2 M NaClO2?

What is the standard molar entropy of NH4ClO4?

What is the standard molar entropy of NH4ClO4?

Consider balanced equation NaHCO3 HCL—–> NaCl CO2 H2O. If

Consider balanced equation NaHCO3 HCL—–> NaCl CO2 H2O. If the reaction produces 9.51 grams of gas, how many grams of sodium bicarbonate reacted

A solution is prepared by dissolving 13.4 g ammonium sulfate in

A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.00 mL sample of this stock solution is added to 57.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.

What is the pressure inside a system when the system-side column

What is the pressure inside a system when the system-side column in an open mercury manometer is 75.0 mm lower than the atmosphere side when the atmospheric pressure is 735 mm Hg? 1. 820 kPa 2. 10.0 kPa 3. 108 kPa 4. 75 kPa 5. 88.0 kPa

find the mass of C3H8 required to generate 2.5×10^8 KJ of

find the mass of C3H8 required to generate 2.5×10^8 KJ of energy when combusted with O2 gas to produce CO2 gas and water vapor

A 1.994 g sample of ethanol is combusted in a bomb

A 1.994 g sample of ethanol is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91 K. If the heat capacity of the bomb is 615.5 J/K and it contains 1.150 kg of water, what is the enthalpy change per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g*K and the molar mass of ethanol is 46.07 g/mol

are XeF5 polar or non polar

are XeF5 polar or non polar

Complete the table below: What is the pH of the solution

Get college assignment help at uniessay writers Complete the table below: What is the pH of the solution created by combining 2.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH pH wHCl pH wHC2H3O2 2.00 Complete the table below: What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted with 100 mL of water (like it will be in the experiment you perform in lab)?

Consider a situation in which 211g of P4 are exposed to

Consider a situation in which 211g of P4 are exposed to 240g of O2. What is the maximum amount of P2O5 that can theoretically be made from 211g of P4 and excess oxygen?

If 37.0 mL lead(II) nitrate solution reacts completely with excess sodium

If 37.0 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.700 g precipitate, what is the molarity of lead(II) ion in the original solution?

A chemist wants to make 4.5 L of a 0.310 M

A chemist wants to make 4.5 L of a 0.310 M CaCl2 solution what mass of CaCl2 (in g) should the chemist use

1. Draw the structural formula of an unsaturated bromide, ~~Br, which

1. Draw the structural formula of an unsaturated bromide, ~~Br, which can show a. neither geometric isomerism nor optical activity b. geometric isomerism but no optical activity (show/identify both (E) and (Z) isomers) c. no geometric isomerism but optical activity (show/identify both (R) and (5) isomers) d. geometric isomerism and optical activity (show/identify E/Z and R/S isomers)

A chemistry handbook lists the solubility of NaI as 184 grams

A chemistry handbook lists the solubility of NaI as 184 grams per 100 mL of water at 25 degrees Celsius. How many moles of NaI can be dissolved in 100 mL of water?

4. Which of the following compounds would you expect to proceed

4. Which of the following compounds would you expect to proceed through an E2 mechanism? Explain why. Consider building models to help formulate an answer.

5. The reaction below illustrates the rearrangement of a a-bond. Aside

5. The reaction below illustrates the rearrangement of a a-bond. Aside from this fact, what type of reaction is it (EA, EAS, Sn1,Sn2,E 1, E2. etc.)? Propose a mechanism for the reaction. (Consider working the reaction both forwards and retrosynthetically, i.e. from products to reactants, to guide you in this process.) What driving force is responsible for the rearrangement?

how does phenylsuccinic acid react with L-proline?

how does phenylsuccinic acid react with L-proline?

Suppose you add 0.001 moles of NaOH and 0.002 moles of

Suppose you add 0.001 moles of NaOH and 0.002 moles of HA, a weak acid, to enough water to make one liter of solution. If Ka = 1 × 10−8 and if NaA is a strong elec- trolyte, what will be the pH of the solution at equilibrium?

write the balanced equations for the reactions of the active ingredients

write the balanced equations for the reactions of the active ingredients in Gaviscon Extra Strength with excess acid. MgCO3, Al(OH)3

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