zn(s) 2 hcl(aq) h2(g) zncl2(aq) when 50.0 g of zn reacts completely

9,424 results, page 8

Chemistry

Could someone please help me complete my lab experiment. Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:mmoles ? Help 4.Volume of NaOH used: 17.14 mL...

Chemistry- practice question

The answer for this question is ΔHrxn=-441.40174468085 kJ/mol but I don't know how to arrive to that answer. 0.47g of magnesium reacts with 100ml of 1.00 mol/L HCl in the following reaction: Mg(s)+2HCl(aq)-->MgCl2(aq)+H2(g). The heat of reaction is -8537.4J Determine...

Chemistry - urgent help needed

The following is part of a procedure for a limit test for sulphates in an NaOH sample:- Dissolve 3.0g of NaOH in 6ml of deionized water, adjust to pH 7 with 12M HCl (about 6.2ml) and dilute to 15ml with deionized water. When about 6ml of 12M HCl was added, a white ppt was ...

Chemistry help

I need help, I don't know how to do these. Single Displacement Fe+S yeilds ___ Mg+O2 yeilds___ Cu+O2 yeilds___ CaO+H2O yeilds___ Decomposition HgO yeilds___ NaHCO3 yeilds___ CuSO4+5H2Oyeilds___ Single Displacement Zn+HCl yeilds___ Zn+CuSO4 yeilds___ NaBr+Cl2 yeilds___ Ca+H2O ...

Chemistry

0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.

Chemistry

Question: Suppose you have 557 ml of 0.0300M HCL and you want to make up a solution of HCL that has a pH of 1.831. What is the maximum volume (in liters) that you can make of this solution? I know that you can get the concentration of HCL using the pH given, but how do you ...

chemistry

1.2 mol HCl and 3.9 mol NaOH react to this equation, HCl + NaOH=NaCl + H20 If the limited reactant id HCl, calculate the amount of NaCl formed in moles. Please help and explain how to solve this so I may understand it better please and thank you.

Chemistry

1. How many moles of ammonia NH3 are produced when 0.45 moles of nitrogen N2 reacts? N2 + 3H2 yields 2NH3 2. How many mililiters of water will be produced when 2.05 g of hydrogen reacts? The density of water is 1.00 g/mL ? 2H2 + O2 yields 2H2O 3. What is the limiting reactant ...

chemistry

A 0.2528 g sample of a mixture containing sodium carbonate and sand requires 12.32 mL of 0.2409 M HCl(aq). Assuming that the sand does not react with the HCl(aq), what percentage of the mixture is sodium carbonate? Balanced equation: Na2CO3(s) + 2 HCl(aq) ¨ 2 NaCl(aq) + CO2...

A & M

how many grams of CaO are required for complete reaction with the HCl in 275mL of a 0.523 M HCl?

chemistry

Describe how to prepare 1 liter of 0.5N solution of HCl from concentrated HCl. H=1, Cl=35.5, spgr=1.19, 37.2%

Chemistry

How many milliliters of a 0.75 M HCL solution do you need to obtain 0.0040 mol of HCL?

chemistry

How many grams of HCl must be added to make 1 liter of a 2.0 M HCl solution

chemistry

calculate how many mL of 6M HCL are needed to prepare 100mL HCL solution with a concentration of ~1M?

Chemistry

which contains the lowest % of hydrogen? HCl H3PO4 H2SO4 H20 is it HCL?

chemistry

How much HCL would be needed to neutralize 250mL of 6 M NaOH (HCL = 1.5 M)?

chemistry

How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?

chemistry

How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?

Chemistry

How many milliliters of 7.00M HCl solution are needed to obtain 0.200mol of HCl?

chemistry

calculate the volume of concentrated 4M HCl that is needed to create a 1 L solution of 0.1 M HCl.

chemistry

Calculate mole fraction of HCl in a solution containing 24.8% HCl by mass

chem

How much 12M HCl would you need to make 100.0 mL of 2M HCl?

chem

How many milliliters of a 0.82M HCl solution do you need to obtain 0.0038mol of HCl ?

Chemistry

A 25.00 mL sample of HCl was titrated with 35.79 mL of 0.250 M KOH. The concentration of the HCl solution is:

analytical chemistry

what is the volume that must be added to dillute 20.0 ml of 0.1M Hcl to 0.02M Hcl

Science

Volume of 12M HCL taken for preparing 1M HCL (100 ml Sol {

Chemisty

What volume of 12.0 M HCl must be diluted in order to make 250.00 ml of 2.00 M HCl

Chem

How many liters of H2 gas can be produced at 0 ∘C and 1.00 atm (STP) from 48.0 g of Zn? Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

Chemistry

Zn + 2HCl = ZnCl2 + H2 Which amount would produce more H2: 17gramsZn OR 150 mL of 0.5HCl?

chemistryy

Most window cleaners are aqueous solutions of ammonia. A 9.00 mL sample of a particular window cleaner requires 42.95 mL of 0.0508 M HCl for its titration. What is the molarity of ammonia in the window cleaner? i am completely lost i cant even find the balanced equation as you...

chemistry

When zinc metal is reacted with hydrochloric acid, zinc chloride and hydrogen gas are produced. If 16.4 ml of 2.14 M HCl are used: a) how many grams of zinc metal are needed to completely use up the acid? b) What will be the molarity of the aqueous product? Please show all ...

chemistry

For the reaction: Mg + 2 HCl => MgCl2 + H2 a) How many grams of HCl are required to react with 62.0 g of Mg?

chemistry

Calculate how many L of 21M HCL must be added to make 1L to .1M HCL.

Chemistry

How many mL of concentrated HCl (aq) (36.0% HCl by mass, d=1.18 g/mL are required to produce 5.00 L of a solution with a pH =2.10?

Chemistry

to how many milliliters must 29.6 mL of 4.25 M HCL be diluted to make 0.654 M HCL?

chem

how to prepare 300ml of .250M HCl from a 1.00 M HCl stock solution

Chemistry

How many mL of 12M HCl is needed to create 350mL of 0.125M HCl?

Chemistry

20.0 mL of HCl in a flask Titration required 12.3 mL of 0.108M Mg(OH)-2 What is the molarity of the HCl?

Chemistry

How much 3M HCL will be used in order to prepare 250ml of 1M HCL

Bsc

we use HCL INSTEAD OF H2SO4 108Kg. HCL Qty?

Chemistry

A mixture of 0.47 mole of H2 and 3.59 moles of HCl is heated to 2800C. Calculate the equilibrium partial pressures of H2 Cl2 and HCl if the total pressure is 2.00 atm. For the reaction Kp is 193 at 2800C. H2(g) +Cl2(g) = 2HCl (g) What I've done so far: found the partial ...

Chemistry

Calculate the molality of HCl in an aqueous 12M HCl solution that has a density of 1.20g/mL

chemistry

What is the concentration (in M) of H+ present in the solution formed by mixing 20 mL of 0.100 M HCl and 10.0 mL of 0.500 M HCl

Biochem

10ml of HCl acid titrate with 9.9ml of NaOH. What is the mass in grams of HCl?

chemistry

How many milliliters of 1.9 M HCl must be transfered from a reagent bottle to provide 24 g HCl for a reaction?

chamistry

how do you calculate the mole fraction of HCl in an acqueous solution that contains 33.6% HCl by mass?

Chemistry Lab

If 12.50 mL of 0.324 M HCl is diluted to 250.00 mL, what is the concentration of HCl in the final solution?

chemistry

To what volume must 10.0ml of 5.00 M HCL be diluted to make a 0.500 M HCL solution ?

chemistry

a bottle of 12.o M HCL has only 49.8 ml left in it. What is the molarity of the hcl if the solution is diluted to 350ml.

Chemistry

2.) Part A.2. Suppose 6 M HCl is substituted for the 3 M HCl in the procedure. What would be the consequence of this substitution?

CHEMISTRY

TO PREPARE 10% HCL SOLUTION ,HOW MUCH AMOUNT OF 35%HCL IS USED.SPECIFIC GRAVITY 1.18

chemistry

Calculate the mass of HCl required to prepare 2.5 liters of a 0.08 molar solution of HCl.

AP Chem

how many milliliters of 0.10 M HCl must be added to 50.0 mL of 0.40 HCl to give a final solution that has a molarity of 0.25 M?

chemistry

describe the preparation of 100ml of 6.0M HCl from a concentrated solution that has a specific gravity of 1.18 and is 37% w/w HCl.

chemistry

A solution is labeled 85.6 g HCl per 480 g of water,calculate the molality and % HCl by wt.

chemistry

A solution is labeled 85.6 g HCl per 480 g of water,calculate the molality and % HCl by wt.

science

Describe the preparation of 100 mL of 6.0 M HCL from a concentrated solution that has a specific gravity of 1.18 and is 37% (w/w) HCL

chemistry

Describe in detail how you would prepare 500 ml of 0.1 M HCl from 6 M HCl stock solution.

Chemistry

In the preparation of one liter of 2.5 M HCl solution, what is the volume of HCl concentrated (37% w / w, d = 1.19 g / ml) to be used?

Chemistry

To prepare one liter of 2.5 M solution of HCl, what is the volume of concentrated HCl (37% p/p, d = 1.19 g/mL) to be used?

Chemistry

What is the pH, pOH, [H+] and [OH-] for a solution that contains 5.25 x 10^-3 moles of HCl dissolved in 3.25 L of water? I was gone the day my teacher explained this and I'm completely lost on what to do. An outline of steps needed to solve the problem would be helpful. Please...

CHEMISTRY (WEBWORK)

What is the pH of the solution created by combining 1.20 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 w/ HCl pH w/ HC2H3O2 1.20 ? ? Complete the table below: What are the pH values if you take into account ...

Chemistry

A 0.528 gram sample of a metal, M, reacts completely with sulfuric acid according to: M+H2SO4 -> MSO4+H2 A volume of 205 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and...

Chemistry

A sample of 0.30 moles of a metal M reacts completely with excess fluorine to form 18.69 grams of MF2. How many moles of F are in the sample of MF2 that forms? M + F2 ---> MF2 How many grams of M are in this sample of MF2 ?

Chemistry

A 0.464 gram sample of a metal, M, reacts completely with sulfuric acid according to: M(s) +H2SO4(aq)=MSO4(aq)+H2(g) A volume of 211 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0...

chemistry

A 40 mL sample of 0.25 M NaCHOO is titrated with 0.2 M HCl. What is the pH of the solution after 140 mL of HCl has been added?

Chemistry

How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?

Chemistry

How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?

Chemistry

How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?

Biochemisty

If I take 5mL of a TRIS/HCL buffer with a pH of 7.4 and add 1mL of 1M HCL, how do I determine the new pH?

Chemistry

Potency of HCl(l) is 35% (w/w) and density 1.19 g/cm3. Calculate the molarity of the Acid? [Molecular Weight of HCl is 36.5].

Science: Chem

How many milliliters of 0.10 M HCl must be added to 52.0 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M?

chemistry

What is the molarity of a solution that contains 31.0 HCl in 5.00kg water? (molar mass of HCl=36.46 g/mol)

Chemistry

How many grams of a 12.5% (w/w) aqueous solution of HCl do you have to measure out if yo need 32g Of HCl?

chemistry

How would a chemist make up 100g of 10% aqueous solution of HCl (using 12M HCl)

Chemistry

How many milliliters of 1.5 M HCl must be transferred from a reagent bottle to provide 25g HCl for a reaction?

Chemistry

What volume of concentrated hydrochloric acid (12.0 M HCl) is required to make 2.0 liters of a 3.0 M HCl solution?

chemistry

A bottle of HCL is 14.0M and has a density of 1.08 grams/mL. What is the molality of the HCL?

Chemistry

How will you prepare 10mL of .050 M HCl from a .10 M solution of HCl?

Chemistry

Which bond is polar covalent? a) H2 b) Cl2 c) HCl d) O2 is it HCL ?

Chemistry

How many moles of HCl are present in a 50mL 3M solution of HCl?

Chemistry

How many moles of HCl are present in a 50mL 3M solution of HCl?

science

50 mL 3.0 M HCl(aq) that means hw much HCl i have to add

chemistry

How would you prepare a standard solution of 1m HCL(5.6 of HCL is 1.18)?

Chemistry

what is the concentration of hcl when 55 ml of this hcl solution neutralize 15ml of .9m ca(oh)2

Science

5.00 ml of 1.90M HCl is diluted to 0.400l. calculate the pH of the HCl?

Chemisttry

How would you make 0.1 N HCL using 12M HCL?

Chemistry

How many milliliters of 11.5 M HCl(aq) are needed to prepare 310.0 mL of 1.00 M HCl(aq)?

Chemistry

What volume of 12.1 HCL (aq) is needed to prepare 250.0 mL of 1.00 M HCL (aq).

Chemistry

A 19.9mL volume of a hydrochloric acid solution reacts completely with a solid sample of magnesium carbonate, producing 183mL of CO2 that is collected over water at 24.0 degrees C and 738 torr total pressure. The vapor pressure for water at 24.0 degrees C is 22.39 mmHg. What ...

Chemistry

Hi, I posted yesterday with this lab question. "Calculate the molar amounts of NaOH used in the reaction with the HCl solution and with the HC2H3O2. I think I got the answer to that with the help that I received. I had 5 mL of HCl, and I was using .100 M NaOH, so I got 5x10-4 ...

Chemistry

How many grams of calcium carbonate, CaCO3, do you need in an antacid tablet to neutralize 20 mL of stomach acid? (stomach acid is 0.1 M HCl. There are 3.65g of HCl in 1L of stomach acid or 1g of HCl in 274g of stomach acid).

chemistry

A 0.4515 g sample of pure CaCO3 was transferred to a 500 mL volumetric flask and dissolved using 6M HCl then diluted to volume. A 50.00 mL aliquot was transferred to a 250mL Erlenmeyer flask and the pH adjusted. Calmagite was used as an indicator the solution was titrated ...

chemistry

How many milliliters of 3.6 M HCl must be transfered from a reagent bottle to provide 20 g HCl for a reaction? Answer in units of mL

math,chemistry

How much water should be added to 1 liter of 0.12N HCl to prepare exactly 0.1N HCl?

Chemistry

By titration it is found that 68.9 mL of 0.122 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

chemistry

How much water would you add to 12 M HCl to make 650 mL of 1.5 M HCl? Hint: This is a dilution problem

chemistry

A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?

chemistry

How many milliliters of 1.4 M HCl must be transfered from a reagent bottle to provide 23 g HCl for a reaction? Answer in units of mL

Chem

How many milliliters of 1.5 M HCl must be transfered from a reagent bottle to provide 25 g HCl for a reaction? Answer in units of mL.

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