BandNerd2046 BandNerd2046

23-01-2024
Chemistry

contestada

1.25 g of a sample of Na₂CO₃ and Na₂SO₄ is dissolved in 250 ml solution. 25 ml of this solution neutralises 20 ml of 0.1N H₂SO₄.The % of Na₂CO₃ in this sample is
A 84.80%
B 8.48%
C 15.20%
D 42.40%

Respuesta :

Otras preguntas

How long does one monarch's term of rule?

The force that keeps a satellite in earth’s orbit is always directed away from the center of earth. true or false.

Select the pair of elements that is most likely to form an ionic bond. A. hydrogen and helium B. lithium and potassium C. potassium and iodine D. iron and zinc

science fair ideas? please help

y=(x-4)/(x*x)-11x+28

The movement of a plant's leaves to face the sun as it moves across the sky is an example of a. phototropism. b. solar tracking. c. heliotropism. d. nastic

What is the length of stack E C with bar on top in the rectangular prism? Round to the nearest tenth of a centimeter. A. 7.5 cm. B. 9.4 cm. C. 12.6 cm. D. 15.3

A scientific hypothesis must be

Based on what you learned about the economics of organic produce explain why buying organic food is so expensive and how that relates to direct variation

Write 360 as a product of its prime factors