Calculate the pH of 100 mL of 0.30 M NH3 after the addition of 4.0 g of NH4NO3. Assume that the volume remains constant.

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What is the scientific method answers to the freezing point of water

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B. Density of Liquid 1. Obtain a sample of distilled water (any quantity of your choice) anddetermine its mass and volume. Record your data on table 3 in theexperimental report 2. Calculate the density of the water sample using equation 1. Substance  Density (g/mL) Substance  Density (g/mL) Aluminum 2.7 Lead  11.3 Brass 8.4 Zinc 7.1  Copper 8.9 Cork 0.26 Tin 7.3 Silver 10.5 Bone 1.80 Rhodium 12.4 Iron 7.9 Platinum 21.45

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A piece of platnium metal ore obtained was determined to have a mass of 1.6124 grams. The density of platnium is 21.45 g/ml what is the full volume (in liters) of the piece of platnium

→ Question Completion Status: Moving to the next question prevents changes to this answer. Question 12 Which state of matter has a compact particle arrangement? solid liquid AME gas plasma Moving to the next question prevents changes to this answer. QO

Suppose that you heated the hydrated copper (II) sulphate in a test tube, instead of a beaker. How might this affect your results? 4 MAY 19 ... MacBook Pro & * %23 $ 2 3 4 5 6 7 E Y U G H J K C V M MOSISO command option command レー

C. The lead(II) oxide was weighed before and after the additions. d. 19 18 17 16 9 before لسلا ii. What method is used to separate the mixture in stage 3? 15 iii. What term is used to describe the unreacted lead(II) oxide? 14 13 12 9 Use the balance diagrams to work out the mass of lead(II) oxide added to the dilute nitric acid. after i. How would the student know when all of the dilute nitric acid had reacted in stage 2? e. Describe the effect of heating the solution of lead(II) nitrate until it boils and then heating for a further ten minutes.