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Hiba
Questions (14)
Express (round off) each of the following to three significant figures:
0.002537, 12345000, 0.07966, 620.2
2 answers
463 views
1- Which of the phenol and p-nitrophenol compounds is more acidic?
Explain by drawing the resonance structures of conjugate
1 answer
373 views
1-HI, H2 and I2 are placed in a container at 458 ° C. Among these substances 2H (g) <----> H2 (g) + I2 (g) [HI] = 0.15 M when
7 answers
587 views
1- 420 micro Siemens value is read in the conductivity device for the complex prepared at the concentration of 1×10^-3 M.
1 answer
441 views
1-◇Formed with NaOH, HCl, NH3 and H2CO3 acids and bases; I. NaCl, II. Na2CO3, III. NH4Cl Which or which salts hydrolysis?
a) I
4 answers
756 views
1- A 40.0cm diameter loop is turned to the position where the largest flux is handled in a uniform electric field. In this
0 answers
447 views
1◇- You are asked to prepare 1.10-3 M 15 mL Potassium tri oxalato chromate (III) solution for conductivity measurement
0 answers
457 views
1◇- You are asked to prepare 1.10-3 M 15 mL Potassium tri oxalato chromate (III) solution for conductivity measurement
0 answers
466 views
75.0 mL 0.060 M NaF and 25 mL 0.150 M Sr (NO3) 2 are mixed. Calculate the Q.
For SrF2 Kc = 2.0 x 10-10
1 answer
813 views
A 40.0cm diameter loop is turned to the position where the largest flux is handled in a uniform electric field. In this
0 answers
389 views
1. The equilibrium constant of the balance reaction below is 1.6 x 10-2 at 25 oC and 2.7 x 10-5 at 125 oC.
AB (g) + C (g) 3D
1 answer
534 views
1-A sample of potassium hydrogen oxalate, KHC2O4, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH
2 answers
875 views
Sample Results:
Mass (g) Trial 1 Trial 2 Filter paper 1.36 1.29 Filter paper + PbI2 3.20 3.09 PbI2 ? ? Calculations and
1 answer
1,571 views
1. The compound KICO3 decomposes according to the following equation:
2KCIO3 -> 2KCL + 3O2 a. what is the mole ratio of KCIO3 to
1 answer
976 views
Answers (7)
By question 5, I mean that a, b ,c d and e are expressions, and there is one wrong between them. And in the 6 question i mean solubility.
In the question 3 (1×10^-3) Please i need help
Thank you so much 🤗
In 3 question Which of these options do they define as A, B and C definitions? a)Catalyst, Concentration, Temperature b)Temperature, Concentration, Catalyst c) Catalyst ,Temperature, Concentration d)Concentration, Catalyst ,Temperature e)Temperature,
An electron was released from rest in a uniform electric field of 5.90 × 10 ^ 3 V / m. How much potential awareness (V) will pass after 1cm movement, and what is the time of the electron in position (m / s)? [m (e) = 9.11 × 10 ^ -31 kg, | q (e) | = 1.60
The standard solution of 0.0500 M K + is required for the calibration solution in the determination of potassium by flame photometric method. How to prepare 50 mL of this solution from primary standard K2CO3 (138,205 g / mol)?
In this investigation, you will study the reaction between lead(II) nitrate, Pb(NO3)2, and potassium iodide, KI, to determine the percentage yield of lead(II) iodide. This reaction occurs based on the following equation: This image shows Pb(NO sub 3 ) sub
