"molal concentration" meaning in English

{
  "forms": [
    {
      "form": "molal concentrations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "molal concentration (plural molal concentrations)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
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      ],
      "glosses": [
        "the molality of a solution"
      ],
      "id": "en-molal_concentration-en-noun-vudXxANV",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "molality",
          "molality"
        ],
        [
          "solution",
          "solution"
        ]
      ],
      "raw_glosses": [
        "(chemistry) the molality of a solution"
      ],
      "related": [
        {
          "word": "molar concentration"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "molal concentration"
}

{
  "forms": [
    {
      "form": "molal concentrations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "molal concentration (plural molal concentrations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "molar concentration"
    }
  ],
  "senses": [
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      ],
      "glosses": [
        "the molality of a solution"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "molality",
          "molality"
        ],
        [
          "solution",
          "solution"
        ]
      ],
      "raw_glosses": [
        "(chemistry) the molality of a solution"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "molal concentration"
}