J.R. S.

I can't find the ionic radius of sodium sulphate, sodium iodide, sodium bromide and sodium nitrate. A quick google tells me the radius of sodium chloride to be 227ppm. Thanks

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Science Chemistry Ap Chemistry

03/24/18

Which of the following solutions are good buffer systems?

I. 0.20M calcium hydroxide+0.20M calcium chloride II. 0.35M+0.32M ammonium nitrate III. 0.10M hypochlorus acid+0.14M hydrobromic acid IV. 0.33M barium iodide+0.27M sodium... more

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Other

03/24/18

workload homework

How much energy is evolved during the formation of 98.7 g of Fe, according to the reaction below?Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) ΔH°rxn = -852 kJHow much energy is evolved during the... more

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Science Chemistry Ap Chemistry

03/24/18

A solution is initially 0.100M in HOCl and 0.300M in NaOCl. What is the pH if 0.030 mol of solid NaOH is added to 1.00L of this solution?

The problem says to assume no change in volume. The answers are A. 5.24 B. 5.38 C. 8.02 D. 8.13 E. 9.06

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Science Chemistry Ap Chemistry

03/24/18

How do I solve this pH problem on NaOH

If 0.040 moles of solid NaOH is added to 1.0L of a solution that is 0.10M in NH3, and 0.20M in NH4CL, what will be the oH of the resulting solution. A. 4.80 B. 8.95 C. 5.05 D. 8.65 E. 9.20

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Science Chemistry Ap Chemistry

03/24/18

Calculate the pH for a buffer solution prepared by mixing 100.0mL of 0.10M HF and 200.0mL of 0.10M KF

A. 2.82 B. 2.96 C. 3.32 D. 3.44 E. 3.53

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Biology Biochemistry Physiology

03/24/18

What clinical problems would be expected to arise if fetal hemoglobin persisted into adulthood?

Fetal hemoglobin has higher oxygen affinity so my only thought might be that it would not release oxygen as easily in the tissues.

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Chemistry

03/24/18

PF5 and SiF4 can show Lewis character or not..If the question comes in jee mains what to write

Mains question

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Hw1

03/23/18

chemistry problem

What mass of natural gas (CH4) must you burn to emit 271 kJ of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ m=?

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Other

03/23/18

how do i do this

one teacher want to give each student 5/17 of a slice of pizza. If the teacher has 20 slices of pizza then how many students would she be able to hand out pizza to?

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Plz Help Asap

03/23/18

Atomic numbers of atoms of elements as you read _ along each row of the periodic table of the elements.

A. increase; left to right B. increase; right to left C. increase; bottom to top D. decrease; top to bottom

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Solutions

03/23/18

4.0 moles of potassium chloride in 0.750 L of solution (water)

molarity equation : moles/liters

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Chemistry Iron Blue Vitriol

03/23/18

If you keep an iron piece in solid state CuSO4 crystals, does any reaction proceed? What is the reason?

I have written my 10th exams today, I really need the answer to this question

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Inorganic Chemistry

03/23/18

Buffer experiment

20 ml of sodium acetate( buffer ) was poured into beaker 1, and 20 ml of distilled water was poured into beaker 2. BTB indicator was added to both beakers. The color and pH were observed. The... more

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Halogens

03/23/18

What happens when you bubble chlorine gas through potassium iodide?

when the reacants react,what is the final chemical compound.And what happens physically.

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How many molecules of O2 are required to form 8.9 times 10^24 molescules of CO2

How many molecules of CO2 can be formed from 139.1g of C2H6

How many grams of CO2 can be formed if 100g of O2 are consumed

What is the pH of 0.10M sodium acetate (NaAc) solution? The Ka of acetic acid (HAc) is 1.8×10^-5

The Ka of the weak acid HNO2 is 7.4×10^4. What is the Kb of its conjugate base NO2-?

Which salt dissolved in water will give the highest pH?

How many grams of solid sodium acetate should be added to 1.50L of a 0.287M acetic acid solution to prepare a buffer with pH 4.140? Grams sodium acetate=

What is the pH at the equivalence point in the titration of 50.0ml of 0.100M hydrochloric acid HF (Ka=7.2×10^-4) with 0.100M NaOH?

What is the [H3O+] of a solution that is 0.0100M in HOCl ( Ka=3.5×10^-8) and 0.0300M in NaOCl?

how many grams of water would be produced by the decompostion of 1.07 grams of H2O2?

Ionic radius of sodium salts

Which of the following solutions are good buffer systems?

workload homework

A solution is initially 0.100M in HOCl and 0.300M in NaOCl. What is the pH if 0.030 mol of solid NaOH is added to 1.00L of this solution?

How do I solve this pH problem on NaOH

Calculate the pH for a buffer solution prepared by mixing 100.0mL of 0.10M HF and 200.0mL of 0.10M KF

What clinical problems would be expected to arise if fetal hemoglobin persisted into adulthood?

PF5 and SiF4 can show Lewis character or not..If the question comes in jee mains what to write

chemistry problem

how do i do this

Atomic numbers of atoms of elements as you read _ along each row of the periodic table of the elements.

4.0 moles of potassium chloride in 0.750 L of solution (water)

If you keep an iron piece in solid state CuSO4 crystals, does any reaction proceed? What is the reason?

Buffer experiment

What happens when you bubble chlorine gas through potassium iodide?

Still looking for help? Get the right answer, fast.

OR

J.R. S.

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Emmersion

How many molecules of O2 are required to form 8.9 times 10^24 molescules of CO2

How many molecules of CO2 can be formed from 139.1g of C2H6

How many grams of CO2 can be formed if 100g of O2 are consumed

What is the pH of 0.10M sodium acetate (NaAc) solution? The Ka of acetic acid (HAc) is 1.8×10^-5

The Ka of the weak acid HNO2 is 7.4×10^4. What is the Kb of its conjugate base NO2-?

Which salt dissolved in water will give the highest pH?

How many grams of solid sodium acetate should be added to 1.50L of a 0.287M acetic acid solution to prepare a buffer with pH 4.140? Grams sodium acetate=

What is the pH at the equivalence point in the titration of 50.0ml of 0.100M hydrochloric acid HF (Ka=7.2×10^-4) with 0.100M NaOH?

What is the [H3O+] of a solution that is 0.0100M in HOCl ( Ka=3.5×10^-8) and 0.0300M in NaOCl?

how many grams of water would be produced by the decompostion of 1.07 grams of H2O2?

Ionic radius of sodium salts

Which of the following solutions are good buffer systems?

workload homework

A solution is initially 0.100M in HOCl and 0.300M in NaOCl. What is the pH if 0.030 mol of solid NaOH is added to 1.00L of this solution?

How do I solve this pH problem on NaOH

Calculate the pH for a buffer solution prepared by mixing 100.0mL of 0.10M HF and 200.0mL of 0.10M KF

What clinical problems would be expected to arise if fetal hemoglobin persisted into adulthood?

PF5 and SiF4 can show Lewis character or not..If the question comes in jee mains what to write

chemistry problem

how do i do this

Atomic numbers of atoms of elements __as you read ___ along each row of the periodic table of the elements.

4.0 moles of potassium chloride in 0.750 L of solution (water)

If you keep an iron piece in solid state CuSO4 crystals, does any reaction proceed? What is the reason?

Buffer experiment

What happens when you bubble chlorine gas through potassium iodide?

Still looking for help? Get the right answer, fast.

OR

J.R. S.

Atomic numbers of atoms of elements as you read _ along each row of the periodic table of the elements.